Tag Archives: rotary compressor

China 110kw 150HP Variable Frequency Mini Rotary Screw Air Compressor

Product Description

110kw 150HP Variable Frequency Rotary Screw Air Compressor

1. Pictures for GREAT PM VSD screw air compressor:

2. Products introductions &advantages for 7.5-630kw oil injected PM VSD ( permanent maget variable speed driven) Rotary Screw Air Compressor:

Motor:

1) .Oil cooling high efficiency permanent magnet motor

2). Insulation grade F, protection grade IP54,adapt to the high dusty environment. IE4 Efficiency motor efficiency.

3).Max.RPM 1500,low noise, high efficiency, better life-span.

4).Split design, easy maintenance. Easy for installation and service.

5).Without gearbox design, motor is connected directly with rotor through the coupling, high transmission efficiency.

6).Low temperature rise, independent cooling fan design, so that the motor cooling is not affected by the speed regulation.

7).With PT100 temperature protection switch to avoid high temperature degaussing.

8).Large speed range, high precision and large adjustment range.

9).Premium Magnetic material resist more than 180ºC temp

10).Fantastic Energy Saving, save up to more than 30-40%

Inverter :
1).  dual variable frequency inverter
2).Dual variable frequency system: permanent magnet motor variable frequency -818

The Air Compressor Is a Versatile Tool

The Air Compressor is 1 of the most versatile tools in any garage or workshop. It is easy to use and can perform a variety of tasks, from jackhammering to drilling. These machines are available in a wide variety of sizes and types, making it an excellent choice for a variety of situations. With a single motor, you no longer need separate motors for each tool. Its lightweight, compact design makes it easy to handle, and the single motor also reduces wear on parts.
air-compressor

Oil-injected

Oil-injected air compressors require a large amount of lubricant, which needs to be added to the sump regularly to maintain optimum performance. As there are many types of industrial fluids, a well-intentioned maintenance technician may add the wrong lubricant to the compressor. If this happens, the compressor will become incompatible with the lubricant, resulting in excessive carryover and the need to flush and replace downstream air treatment components.
Typically, the G 110-250 oil-injected rotary screw compressor from Atlas Copco provides reliable compressed air, preventing costly downtime. The G110-250 oil-injected rotary screw compressor is highly reliable and durable, enabling it to function in temperatures up to 46degC/115degF. Despite the oil-injected air compressor’s robust design, this unit requires very little on-site installation, and it features simple operation.
The primary advantage of oil-injected air compressors is the reduced cost of running. The cost of oil-free compressors is less than half of that of oil-injected ones, and it will require fewer maintenance costs in the long run. Moreover, the oil-free system is more environmentally friendly than oil-injected air compressors. But the drawbacks of oil-injected air compressors are substantial, too. It can contaminate finished goods and cause a significant financial risk for the manufacturer.
An oil-injected rotary screw air compressor offers several advantages over its counterpart. First, it features an innovative vertical design with variable-speed drive, allowing it to run more efficiently. Second, oil-injected air compressors reduce energy consumption by up to 50% compared to non-oil-injected air compressors. They also have a thermostatic valve, allowing them to maintain an optimum temperature. Thermostatically-regulated oil coolers allow the compressor to run more quietly.

Oil-free

What is an oil-free air compressor? The name refers to a type of air compressor that does not contain oil in the compressor chamber. Oil-free air compressors still use oil for various purposes, including lubricating the moving parts and managing waste heat. However, many people do not realize that their air compressor still requires oil for proper functioning. This article will explore why this type of air compressor is preferable for many users.
First of all, oil-free air technology has many benefits. For one, it reduces the energy cost involved in filtering air, and it minimizes leaks. Moreover, it also reduces the oil costs associated with compressor refills. And finally, it reduces the risks of contamination. Oil-free air technology is the future of compressed air. If you’re looking for an oil-free air compressor, here’s what to look for in your search.
Depending on the purpose of your air compressor, it may be beneficial to invest in an oil-free air compressor. Oil-lubricated air compressors are generally more durable than their oil-free counterparts, but they may cost twice as much. You should still consider the cost of ownership before purchasing an oil-free compressor. The oil-free models can be easier to transport, and they are more powerful. Moreover, they’re quieter than oil-lubed models.
An oil-free air compressor also means less maintenance, as it doesn’t need oil to work. This type of air compressors also features fewer moving parts, which means fewer places for problems to develop. All oil-free air compressors are manufactured to meet ISO Class 0 and 1 air purity standards. They also have less noise and vibration compared to their oil-based counterparts. So, why not choose an oil-free air compressor for your business?
air-compressor

Gasoline

When choosing a gas-powered air compressor, it’s important to consider the advantages of gasoline. This energy source can power a large air compressor without electricity. However, this type of air compressor lacks electrical hookup, so you’ll need to run an extension cord if you need to use it at a distance. However, gas compressors are able to function with just a gas tank. This makes them ideal for medium to heavy-duty industrial applications.
Another important consideration when choosing a gas air compressor is its size. Larger compressors are typically larger than portable ones and require more space. This makes them easier to transport and operate on the go. However, if you’re not sure which type of air compressor is best for you, consider the gas-powered versions. While they may be lighter, they don’t run as smoothly as their electric counterparts. Gasoline-powered compressors are not as portable as their electric counterparts and require proper maintenance.

Electricity

Electricity in an air compressor is not cheap. A 25 HP air compressor runs for 10 hours each day, 5 days a week. The motor in these machines consumes 746 watts per hour. To find out how much electricity the equipment uses, multiply the wattage by the running time. For example, if the compressor runs for 3 hours, then it will use 1.9 kilowatt hours of electricity. To determine how much electricity an air compressor uses per day, you can calculate the kilowatt hours and multiply the number by the utility rate. Considering this, you can determine the cost of running your air compressor once per month.
The cost of operating an air compressor depends on the type of compressor. Electric air compressors are often silent and can run without any maintenance. These tools can be left unattended for up to 4 thousand hours before requiring repair. Electric air compressors require higher power for higher pressure, so you should plan accordingly. Whether or not you need a maintenance visit is up to you, but the benefit of not having to spend a fortune on repairs is priceless.
Although compressed air is not an energy-efficient source, its use in a variety of applications may save you money and kilowatts. Since an air compressor uses power when it is running, the cost is lower than the cost of operating a power tool. If you plan to use your air compressor for a long time, make sure that it is maintained properly. Proper care will save you money and power, and you may even be able to get an extended warranty if the compressor breaks down.
air-compressor

Variable frequency drive

The main purpose of a variable frequency drive (VFD) in an air compressor is to reduce energy consumption in the process of compression. A single motor drag system cannot adjust its speed continuously according to the weight of the load. By applying frequency control to the compressor, the power consumption can be reduced while maintaining the same pressure level. Therefore, a VFD is an excellent choice for compressors. Its benefits are numerous.
A VFD can also monitor the temperature of the motor and send error signals if the motor is running too hot or too cold. This eliminates the need for a separate sensor to monitor the oil pressure. These functions are useful not only in lowering energy consumption, but also in improving the performance of an application. Moreover, a VFD can monitor additional variables such as temperature and motor speed. Hence, it is a useful investment.
When using a VFD, it is crucial to choose the right motor. The speed of the compressor should be within the maximum starting limit of the motor. The air tank may be of any size, but a constant pressure limit is required to keep the VFD running within the service factor of the motor. In addition to a VFD, a master controller should also include a remote pressure set point and a PID card for a master controller. The transmitter should incorporate all useful data from the VFD, including the speed and the oil temperature. The VFD must be tested before it is integrated with the master control. It should be tested for min and max speed, temperature, and current within the expected range.
The use of a VFD in an air compressor has many benefits. One of the most notable is the reduction in power consumption. Fixed-speed compressors run on set points of 6 to 7 bar. An extra bar of compression uses 7 percent of energy. This energy is wasted. A VFD-powered air compressor can also increase the life span of compressor parts. It is 1 of the best investments in your compressor. So, why wait any longer?

China 110kw 150HP Variable Frequency Mini Rotary Screw Air Compressor

China Energy Saving 22kw/30HP Industrial Fix Speed Rotary Air Compressor & Screw Air Compressor at-30A

Product Description

Product Description:

The screw air compressor is composed of a pair of parallel and intermeshing female and male screws. It is the most widely used rotary compressor.
There are 2 types of single-screw and twin-screw. Generally speaking, the screw compressor refers to the twin-screw compressor. It was first proposed by the German H. Krigar in 1878. It was not until 1934 by A. Lysholm of the Royal Institute of Technology in Sweden that the technology was established, and it began to be applied in industry and achieved rapid development.

Product Photo:

Product Specification:

Model	AT-10A	AT-15A	AT-20A	AT-25A	AT-30A	AT-40A	AT-50A	AT-60A
Air Delivery (m3/min)/ Pressur(Mpa)	1.2/0.7	1.65/0.7	2.5/0.7	3.2/0.7	3.8/0.7	5.3/0.7	6.8/0.7	7.4/0.7
	1.1/0.8	1.5/0.8	2.3/0.8	3.0/0.8	3.6/0.8	5.0/0.8	6.2/0.8	7.0/8
	0.95/1.0	1.3/1.0	2.1/1.0	2.7/1.0	3.2/1.0	4.5/1.0	5.6/1.0	6.2/1.0
	0.8/1.2	1.1/1.2	1.9/1.2	2.4/1.2	2.7/1.2	4.0/1.2	5.0/1.2	5.6/1.2
Cooling Method	Air Cooling
Lubrication Volume(L)	10	18		25		30
Driving Mode	Direct Driven
Voltage	220-440V;50/60Hz
Power(KW/HP)	7.5/10	11/15	15/20	18.5/25	22/30	30/40	37/50	45/60
Start System	Variable Frequency Starting
Size(cm)	866386	10675101		12185116		136101126
Weight	150	230	250	300	350	450	480	550
Outlet size	1/2″	3/4″		1″		1&1/2″

Product Parameters:

Product Details:

New generation of high-efficient Airend
1.Advanced and energy saving spiral tooth-type technology.
2.New Type 5:6 asymmetrical rotator tooth type.
3.Power increased by more than 5%-10% in air dischage when compared to other ordinary machine.

High -efficient power system
1.PM motor adopts high-performance NdFeB, which will not lose magnetism under 200ºC and its service life reaches as long as 15 years.
2.Coaxial structure design,drive efficiency of bearingless structure is 100%.
3.No regular grease injection, no replacement of bearings on a regular basis.
4.The motor is small in size, low noise,low in vibratio and smooth in operation.

High-Performance Inverter
1.Equipped with high frequency reactor, reducing the frequency converter.
2.Reduces CZPT current when it is started, realizes stable starting.
3.Can be automatically adjust the speed of the Motor accoring to your actual requirement, Energy saving up to 35%.

High Efficient oil and gas speraration system
with the world famous brand apoda oil and gas sperarator, reduce the oil content of the compressor exhaust gas and the oil content of the unit power consumption is only 1-2PPM.

Intelligent control system
1.Multi-Language can be switched according to your requirement.
2.With protection functions up to 12 types, such as overload,short circuit,low temperature, over voltage and so on.
3.Simply and clear, easy to operate.

Product Installation Diagram:

Product Application:
Workshop Display:

Our Advantages:

Factory Overview:

Global Market:

FAQ:

1.Q:Can you provide the samples to us?
A: yes, we can provide the sample to you in free, but the cost of the freight on your account.

2. Q:Can you do the order according to the customer requirement?
A:Yes, we can do the order according to your sample or drawings, OEM/ODM service provided.

3. Q:What is your delivery time?
A:Normally, it’s 7 days if the goods are in stock. It will takes about 15-25days if the goods are not in stock, Mainly depends on the order quantity.

4.Q:What is your terms of payment?
A:Generally 30% value of goods as deposit, balance amount against the copy of the BL.

5. Q: How long is the warranty ?
A: 14 months since the container shipped except quick-wear parts.

The Air Compressor Is a Versatile Tool

Oil-injected

Oil-free

Gasoline

Electricity

Variable frequency drive

China Energy Saving 22kw/30HP Industrial Fix Speed Rotary Air Compressor & Screw Air Compressor at-30A

China 535cfm 8~14.5bar Heavy Duty Diesel Rotary Screw Air Compressor for Construction

Product Description

Mature Factory Similar CZPT Trailer Mounted Portable Movable Diesel Screw Air Compressor 200-1800 cfm For Drilling Machine

High Pressure Movable Screw Air Compressor for Drilling Rig

Mobile Diesel Powered Air Compressor 25 Bar for Well Drilling

Packaging & Shipping

FAQ

Q7: Can you give us your best price?
A7: Yes, of course. And we can offer more stable quality products at a suitable price.

Q8: Please send price list ?
A8: OK, could you please provide us with your way of communication?

Q9: Can you send the real picture of the product?
A9: Yes,of course,you please check the pictures and videos,just let me know how many you need ?

Q10: Would it be convenient to hand out your product manual?
A10: Hello,friend,this is our catalog,and the model SUPC560-25-T is the most hot sell,do you need to more introduction?

What to Look For When Buying an Air Compressor

An air compressor is a very useful tool that can help you complete many different types of construction jobs. This handy machine makes many tasks much easier, but not all of them are created equally. Understanding what to look for when buying an air compressor will help you make an informed decision. Here are some of the things you should look for. These include price, size, and energy efficiency. Also, make sure to consider the air compressor’s type.
air-compressor

Single-stage air compressors are quieter

When it comes to noise level, single-stage air compressors are the way to go. These machines have fewer moving parts and are quieter than two-stage models. Single-stage air compressors use an axial flow design and can be quieter than their dual-stage counterparts. Single-stage air compressors can run longer and at lower pressures. Single-stage air compressors can be used for light industrial applications. They have a long life expectancy, with some models lasting for over 3 thousand hours.
While some single-stage air compressors are quieter than two-stage air compressors, both models have noise-reduction features. One type features rubber parts, which are designed to dampen noise. Another feature makes a compressor quieter: its location near the job site. Some models feature rubber base plugs and rubber mats to reduce floor vibrations. In addition to using these features, single-stage compressors are easier to transport.
Noise levels are important when choosing an air compressor. Some machines are too noisy for comfortable work, and some businesses don’t want to expose customers to noise-generating air compressors. Other noise levels can even endanger workers’ health. Single-stage air compressors are more affordable than dual-stage compressors. They are also quieter and more powerful. But be prepared for the noise. Some single-stage air compressors are still noisy.
Compared to their two-stage counterparts, single-stage compressors are quieter when running at full capacity. However, double-stage compressors are quieter on low capacities than single-stage units. Those with variable speed are quietest at lower capacities. The difference is about 10db. If you’re concerned about the noise level, you should consider a two-stage air compressor. But if you have a small workshop, it may not be suitable for you.
One-stage air compressors are generally more efficient than two-stage air compressors. The noise from a two-stage air compressor is lower because there’s no intermediate stage. Single-stage air compressors also use a piston that rotates in a single stage, while dual-stage air compressors, also known as duplex models, are more efficient. A single-stage air compressor is quieter, but double-stage compressors are louder.
air-compressor

Two-stage air compressors are more energy efficient

Two-stage air compressors are more energy-efficient than single-stage machines. The efficiency of two-stage air compressors is increased through a combination of improved efficiency and increased longevity. These machines can store more air and have higher compression ratios. One model of a two-stage compressor can hold approximately 83 cubic feet of air at 100 PSI and 120 cubic feet at 150 PSI. A two-stage compressor is also quieter.
Two-stage air compressors are more energy-efficient because they have 2 pistons instead of one. These air compressors achieve a higher pressure rating and recover more quickly. This type of compressor is perfect for jobs that require high air pressure for a prolonged period of time. In addition, they can operate multiple tools simultaneously. This makes them better for commercial and industrial use. Listed below are some benefits of two-stage air compressors.
Single-stage air compressors can power tools in the garage or kitchen, but they are not as reliable for industrial applications. Single-stage compressors have larger parts that tend to experience condensation. Furthermore, single-stage compressors do not last long in continuous use and are less energy-efficient than two-stage ones. Whether you’re using the compressor for a single tradesperson, a small crew, or a large construction crew, two-stage compressors are the best choice.
Single-stage air compressors are often used in small-scale food preparation and production. Single-stage air compressors are easy to transport between locations, and can be plugged into several electrical outlets. Single-stage compressors are also ideal for high-volume food processing. A dual-stage air compressor is ideal for industrial use. In some cases, you can even move the single-stage air compressor between two-stage air compressors.
Single-stage compressors often cycle too quickly, drawing more electricity than two-stage units. A variable speed unit stays on a low speed for hours at a time. Single-stage air conditioners force you to lower your thermostat settings while single-stage air conditioners run too often. Both units are energy-efficient but they are not as energy-efficient as variable-speed compressors. The main difference is that single-stage air conditioners tend to drain the power source quicker.

Piston-driven air compressors are quieter

A piston-driven air compressor is 1 of the quietest types of air compressors. It is less noisy than reciprocating air compressors. A piston-driven air compressor can reach 62 decibels, while a scroll compressor is around half that volume. The 2 main components of a scroll air compressor are the piston and the helical screw. These air compressors are both very efficient and quiet.
Older compressors are incredibly noisy. They produce a “wumpa” noise similar to a large engine. They are also capable of producing a high-pitched whine. These noises can be deafening, especially in a small workshop. That’s why it’s essential to look for a quiet compressor. But what makes a compressor quiet? Read on to learn more about this essential tool.
Another difference between piston-driven air compressors and electric-driven air compressors is the power source. Electric air compressors produce less noise than gas-powered compressors, which use an engine. Piston-driven air compressors are also more efficient. They also generate less heat, making them an ideal choice for offices and other settings where noise is a problem. The best way to decide between the 2 types of air compressors is to check the manufacturer’s warranty and read the ‘Description’.
Noise reduction is the first priority of a compressor’s owner, so make sure that you have the right model. If you’re working on something sensitive, don’t place the compressor too close to a building where people might be nearby. Noise can be very disruptive to the workspace and can cause health problems. To help combat noise, you’ll need to buy a quiet air compressor. And don’t forget to consider its location: Piston-driven air compressors are quieter than their reciprocating counterparts.
Piston-driven air compressors are quiet because the piston is made of thin metal and more rubber, which absorbs the sound. Unlike reciprocating air compressors, piston-driven air compressors are more efficient than their dual-piston cousins, which are quieter and more powerful. So which type is right for you? Take a look at some of the main differences between the two. If you want a quiet compressor, make sure it meets the specifications required by the job you’re working on.
air-compressor

Oil-lubricated air compressors are more cost-effective

There are several reasons why oil-lubricated air compressors are more expensive than dry-type air compressors. First of all, oil-lubricated air compressors tend to be more reliable and quiet. Additionally, oil-lubricated air compressors require fewer parts and can last longer than dry-type air compressors. These are just a few of the many benefits of using oil-lubricated air compressors.
Oil-free air compressors have some disadvantages. They are less durable and may not be as efficient as oil-lubricated models. Additionally, because oil-lubricated air compressors use oil, they can get very noisy. While they are less expensive, they are not the best option for heavy-duty work. However, modern oil-free air compressors have soundproofing and are suitable for industrial use.
When purchasing an oil-lubricated air compressor, make sure to choose 1 with a tank capacity that meets your needs and your space. Larger tanks can be more expensive than small tanks, but larger units are easier to move around. Also, be sure to consider the weight and size of the portable air compressors when making your choice. If the weight is too large, you may have trouble carrying it from place to place.
Another benefit of using oil-lubricated air compressors is their reduced need for oil. These models can last up to a decade longer than oil-free counterparts. Oil-free air compressors are more affordable and can achieve the same high performance as their oil-lubricated counterparts. Many industrial applications benefit from these air compressors. So, which 1 is right for you? We’ve listed a few of them below.
Another benefit of choosing an oil-lubricated air compressor is the reduced cost of maintenance. This type is more durable than its oil-lubricated counterparts, which require regular oil changes to keep them running smoothly. However, it is not feasible to transport an oil-lubricated compressor, which means that you must install it permanently to keep it working efficiently. In addition, these air compressors are difficult to move and are not portable, which can limit your ability to use it in a pinch.

China 535cfm 8~14.5bar Heavy Duty Diesel Rotary Screw Air Compressor for Construction

China 100HP 75kw Energy Saving 40% Air Cooling Two Stage Compressor Industrial Rotary Pm VSD Screw Air Compressors with CE ISO Certificate

Product Description

100HP 75kW Energy Saving 40% Air Cooling Two Stage Compressor Industrial Rotary PM VSD Screw Air Compressors with CE ISO Certificate

Two stage air end
Feature:Two-stage compressor air-end
Advantage:Low compression ratio, Low temperature rising, Low air leakage
Benefit:15% energy-saving

High-efficiency Motor
Feature:IE4 permanent magnet motor/IE4 High-efficiency motor
Advantage:Motor efficiency 97%
Benefit:5% energy-saving

Intelligent control
Feature:VFD system
Advantage:Constant pressure output to remove pressure fluctuation and off-load, Constant temperature output at 9-~85°C, Low starting current to protect components
Benefit:15% energy-saving

Smart display screen
Feature:Intelligent control system
Advantage:10 inch monitor to show all the date
Benefit:Simple operation and touble free

Cooling fan
Feature:Large cooler system
Advantage:Axial flow Fan used for good cooling effect
Benefit:Allow ambient temperature at 52°C

Systematic Design of Oil separator
Feature:Large oil system
Advantage:Reduce internal pressure loss avoid oil, Leakage for safety
Benefit:3% energy-saving

Filter
Feature:Double filtering system
Advantage:Remove impurity from air and cleanness
Benefit:Longer life air -end and lubrication oil

Air inlet valve
Feature:High vacuum degree:700mmHg
Advantage:Large suction area, Low load energy consumption in unloaded operation,
Fast check: prevent unloading and shutdown oil injection
Benefit:Cast aluminum to avoid rust and temperature change

Product Parameters

Technical Parameter

1.power frequency

ODEL	Air flow Capacity (m³/min)					Power (kW)	Noise (DB)	Outlet Diameter	Dimension ( mm)	Weight (Kg)
ODEL	0.6Mpa	0.7Mpa	0.8Mpa	1.0Mpa	1.3Mpa	Power (kW)	Noise (DB)	Outlet Diameter	Dimension ( mm)	Weight (Kg)
DD-75	15.80	14.70	13.00	9.50	8.60	55	70	DN50	2300x1300x1830	1534
DD-100	18.80	17.40	15.50	12.80	10.00	75	72	DN50	2300x1300x1830	1700
DD-125	21.30	20.70	19.50	16.50	13.00	90	72	DN65	2550x1630x1850	2080
DD-150	26.50	26.30	25.00	20.00	18.80	110	72	DN65	2550x1630x1850	2120
DD-175	34.00	32.60	30.00	24.00	20.00	132	78	DN80	3000x1828x2310	4850
DD-220	41.00	38.00	37.00	29.60	24.50	160	78	DN80	3000x1828x2310	5000
DD-250	44.00	41.00	40.00	34.00	31.00	185	78	DN100	3460x1940x2230	5900
DD-275	48.00	44.00	45.00	40.00	33.00	200	78	DN100	3460x1940x2230	6200
DD-275	55.00	51.00	50.00	43.00	38.00	220	80	DN125	3860x2130x2380	8500
DD-350	60.00	57.00	56.00	47.00	43.00	250	80	DN125	3860x2130x2380	8650

2.Permanent magnet

Model	Air Delivery (m3/min)				Power (kW)	Noise (Db)	Outlet diameter	Dimension (mm)			Weight (Kg)
	0.7Mpa	0.8Mpa	1.0Mpa	1.3Mpa				Length	Width	Height
DDM-30	4.50	4.20	3.40	2.60	22	68	G1	1440	830	1265	840
DDM-40	6.05	5.80	4.18	4.00	30	68	G11/2	1600	940	1410	950
DDM-50	7.50	6.80	6.00	4.60	37	68	G11/2	1600	940	1410	1050
DDM-60	10.50	9.90	6.80	5.71	45	72	G2	2000	1120	1590	1560
DDM-75	13.60	12.30	10.15	7.00	55	76	DN50	2900	1470	1625	1780
DDM-100	16.00	15.50	12.80	10.20	75	76	DN50	2900	1470	1625	2000
DDM-125	20.70	19.50	16.15	13.20	90	76	DN65	3400	1757	1860	2700
DDM-150	24.80	24.00	20.20	15.21	110	76	DN65	3400	1757	1860	3000
DDM-175	29.00	28.00	23.20	18.70	132	78	DN80	3750	1900	1980	4650
DDM-220	34.00	32.50	28.00	23.10	160	78	DN80	3750	1900	1980	4850
DDM-250	39.00	38.00	32.00	27.70	185	78	DN100	3900	2100	1980	5900
DDM-275	43.20	42.00	38.10	31.90	200	78	DN100	3900	2100	1980	6200
DDM-300	48.51	46.20	41.20	31.60	220	82	DN100	4260	2182	2170	6200
DDM-350	52.50	51.00	45.80	37.20	250	82	DN100	4260	2182	2170	6500

Certifications

Certificate

Project case

Project case

Customer feedback

Customer feedback

Company Profile

About us

Dehaha Compressor was founded in 1996 with over 150 skilled employees and more than 25 R&D engineers’ teams.We focus on the research & develop, manufacture and energy-saving solutions of screw air compressor to create value for customers and society.

Dehaha opened to the world since 2015, and now we have a foreign trade department with more than dozens people, serving customers around the world 24 hours. We have sales representatives who can speak English, Spanish, Portuguese, French,and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.now our valued customers are over 130 countries. Germany Standard and 13 years exporting experience help us won more than 50 loyal overseas agents.

Dehaha continuously innovates product development and management to meet customers’ demand. The powerful enterprise culture and continuous innovation make CZPT improved rapidly to reach the business principle “Energy Saving First, Mutual Value Shared”. The production line of CZPT is consist of screw air compressor from 5.5KW to 550KW, oil free air compressor, portable air compressor, permanent magnet variable frequency air compressor, high pressure air compressor and compressed air purification equipment, etc.

Dehaha mission is to be a world-renowned high-end brand, with sustainable development, constantly improving its own value and sharing it with our customers and staff. Committed to offer our customers a silent and energy-saving manufactured products.

Our service

Our service

1.24/7 after sales service support in different languages.
2.Follow up the feedback of products in 2 months interval by email or call.
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians or local Authorized Service Center.
4.Technical training for customers in DEHAHA air compressor factory or working site.
5.Plenty of original spare parts with proven quality are all available from our central stocks in ZheJiang and all distributors’depots.
6.All kinds of technical documents in different languages.

FAQ

FAQ

1.Why customer choose us?
DHH SCREW COMPRESSOR ZheJiang CO.,LTD.with 23 years old history,we are specialized in Rotary Screw Air Compressor.Germany Standard and 13 years exporting experience help us won more than 30 loyal foreign agents.We warmly welcome your small trial order for quality or market test.

2.Are you a manufacturer or trading company?
We are professional manufacturer with big modern factory in HangZhou,China,with professional design team.Both OEM & ODM service can be accepted.

3.Where is your factory located? How can I visit there?
Our factory is located in HangZhou City, ZheJiang Province, China. We can pick up you from ZheJiang , it’s about 1 hour from ZheJiang Xihu (West Lake) Dis. Airport to our factory. Warmly welcome to visit us!

4.What’s your delivery time?
380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days,if urgently order,pls contact our sales in advance.

5.How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts and we can provide some spare parts of the machines

6.How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001:2015 authentication and CE certificate.

7.How long could your air compressor be used?
Generally, more than 10 years.

8. What’s payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and etc.Also we could accept USD, RMB, Euro and other currency.

9.How about your customer service?
24 hours on-line service available.48 hours problem solved promise.

10.How about your after-sales service?
(1) Provide customers with installation and commissioning online instructions.
(2) Well-trained engineers available to overseas service.
(3) Worldwide agents and after service available.

How to Choose the Right Air Compressor

An air compressor uses pressurized air to power a variety of tools. They are most commonly used to power nailers and impact wrenches. Other popular uses for air compressors include paint sprayers and impact wrenches. While all air compressors have the same basic construction, their specialty differs. Ultimately, their differences come down to the amount of air they can push. Read on for information on each type of air compressor. These tools are great for many different purposes, and choosing the right air compressor depends on your specific needs.
air-compressor

Electric motor

While purchasing an electric motor for air compressor, compatibility is a key factor. Not all motors work with the same type of air compressor, so it’s important to check the manufacturer’s instructions before purchasing. By doing this, you can avoid wasting money on an incompatible motor. Another important consideration is speed. A motor’s speed is its rate of rotation, measured in revolutions per minute. It is critical that you purchase a motor with sufficient speed to meet the needs of your air compressor.
Typically, an electric motor for air compressor is 1.5 hp. It is ideal for use with medical equipment and metal-cutting machines. It also performs well under continuous operation and offers a high efficiency and energy-saving performance. Moreover, it features an attractive price, making it a good choice for a wide range of applications. If you are looking for a motor for an air compressor, look no further than a ZYS series.
A motor’s protection class indicates how the motor will operate. Protection classes are specified by the IEC 60034-5. These are stated with 2 digits and represent the protection against solid objects and water. For example, an IP23 rating means that the motor will be protected from solid objects, while IP54 means that it will protect from dust and water sprayed from all directions. It is vital to choose a motor with the correct protection class for your air compressor.
When choosing an electric motor, you should consider whether it’s compatible with the brand of air compressor. Some may be compatible, while others may require advanced electronics skills to repair. However, most air compressors are covered by warranty, so it’s important to check with the manufacturer if the warranty is still in effect before you spend a dime on a replacement. The motor should be replaced if it has failed to perform as designed.
air-compressor

Oil bath

Air compressors require proper lubrication to function efficiently. The piston must draw air with minimal friction. Depending on their design, air compressors can either be oil-lubricated or oil-free. The former uses oil to reduce piston friction, while the latter splashes it on the cylinder bearings and walls. Such air compressors are commonly known as oil-flooded air compressors. In order to keep their oil baths clean, they are recommended for use in locations with high dust levels.

Start/stop control

An air compressor can be controlled by a start/stop control. This type of control sends a signal to the main motor that activates the compressor when the demand for air falls below a preset limit. This control strategy is effective for smaller air compressors and can be useful for reducing energy costs. Start/stop control is most effective in applications where air pressure does not change frequently and where the compressor is not required to run continuously.
To troubleshoot this problem, you need to check the power supply of your compressor. To check the supply side, use a voltage monitor to determine if power is flowing to the compressor. Ensure that the power supply to the compressor is steady and stable at all times. If it fluctuates, the compressor may not start or stop as expected. If you cannot find the problem with the air compressor power supply, it may be time to replace it.
In addition to the start/stop control, you may want to purchase additional air receivers for your air compressor. These can increase the capacity of air stored and reduce the number of times it starts and stops. Another way to decrease the number of starts per hour is to add more air receivers. Then, you can adjust the control to match your requirements. You can also install a pressure gauge that monitors the compressor’s performance.
Start/stop control for air compressors can be complex, but the basic components are relatively easy to understand. One way to test them is to turn the compressor on or off. It is usually located on the exterior of the motor. If you’re unsure of the location of these components, check the capacitors and make sure that the air compressor is not running while you’re not using it. If it does, try to remove the capacitor.
Variable displacement control is another way to adjust the amount of air flowing into the compressor. By controlling the amount of air, the control can delay the use of additional compressors until more required air is available. In addition to this, the device can also monitor the energy used in the compressor. This control method can result in substantial energy savings. You can even save on the amount of electricity by using variable displacement control. It is essential for efficient compressed air systems.
air-compressor

Variable speed drive

A VFD, or variable frequency drive, is a type of electric motor that adjusts its speed to match the demand for air. It is an efficient way to reduce energy costs and improve system reliability. In fact, studies have shown that a 20% reduction in motor speed can save up to 50% of energy. In addition, a VFD can monitor additional variables such as compressor oil pressure and motor temperature. By eliminating manual checks, a VFD will improve the performance of the application and reduce operating costs.
In addition to reducing energy costs, variable-speed drives also increase productivity. A variable-speed air compressor reduces the risk of system leaks by 30 percent. It also reduces the risk of system leaks by reducing pressure in the system. Because of these advantages, many governments are promoting this technology in their industries. Many even offer incentives to help companies upgrade to variable-speed drives. Therefore, the variable-speed drive can benefit many air compressor installations.
One major benefit of a variable-speed drive is its ability to optimize energy use. Variable frequency drives are able to ramp up and down to match the demand for air. The goal is to optimize the pressure and flow in the system so that the best “dead band” occurs between 40 percent and 80 percent of full load. A variable-speed compressor will also increase energy efficiency because of its programmability.
A variable-speed air compressor can also be used to control the amount of air that is compressed by the system. This feature adjusts the frequency of power supplied to the motor based on the demand. If the demand for air is low, the frequency of the motor will reduce to save energy. On the other hand, if there is an excess demand for air, the variable-speed compressor will increase its speed. In addition, this type of air compressor is more efficient than its fixed-speed counterpart.
A VFD has many benefits for compressed air systems. First, it helps stabilize the pressure in the pipe network, thereby reducing the power losses due to upstream pressure. It also helps reduce the power consumption caused by fluctuations in upward pressure. Its benefits are also far-reaching. And as long as the air pressure and air supply is properly sized, a VFD will help optimize the efficiency of compressed air systems.

China 100HP 75kw Energy Saving 40% Air Cooling Two Stage Compressor Industrial Rotary Pm VSD Screw Air Compressors with CE ISO Certificate

China Similar CZPT 37kw 50HP Stationary Oilless Direct Driven AC Power Rotary Single Screw Air Compressor for Industrial Plant

Product Description

Model :	Oil Injected Screw Air Compressor
Voltage:	380V/50HZ/3P, 220V/60HZ/3P, 400V/50HZ/3P, 415V/50HZ/3P or Customer′s Requirements
Working Pressure:	7~12 bar
Installed Motor Power:	7.5kw ~ 355kw
Capacity:	0.8~64.0m3/min
Color:	Green (customized)
Driven Method:	Direct Drive
Transport Package:	Standard Wooden Packing
Air End:	Baos,Hanbell,GHH,GU,
application:	Industry,Casting , Metal , Plastic , Rubber

1. Multi-language control system can be customized, easy to operate
2. Can work unattended 24 hours a day
3. The main machine produced with international advanced technology determines the excellent performance of the whole machine
4. The red star air inlet valve is adopted, which can automatically adjust the air volume according to the air volume requirements of the system
5. Adopt high-performance motor, insulation class F, SKFheavy-duty bearing.
6. The average service life exceeds 15 years

Product Parameters

Model	Working Pressure		Capacity		Motor Power	Dimension (mm)	Net Weight (KGS)	Air Outlet Pipe Diameter
Model	Psi	bar	Cfm	m3/min	kw/hp	Dimension (mm)	Net Weight (KGS)	Air Outlet Pipe Diameter
SGD08	102	7	42.4	1.2	7.5/10	900670850	200	1/2”
	116	8	38.8	1.1
	145	10	33.5	0.95
	174	10	28.3	0.8
SGD11	102	7	58.3	1.65	11/15	10807501571	280	3/4”
	116	8	53	1.5
	145	10	45.9	1.3
	174	12	38.8	1.1
SGD15	102	7	88.3	2.5	15/20	10807501571	300	3/4”
	116	8	81.2	2.3
	145	10	74.2	2.1
	174	12	67.1	1.9
SGD18	102	7	113	3.2	18.5/25	13808501185	430	1”
	116	8	105.9	3
	145	10	95.3	2.7
	174	12	84.7	2.4
SGD22	100	7	134.2	3.8	22/30	13808501185	450	1”
	116	8	127.1	3.6
	145	10	113	3.2
	174	12	95.3	2.7
SGD30	102	7	187.1	5.3	30/40	13808501185	500	1”
	116	8	176.6	5
	145	10	158.9	4.5
	174	12	141.2	4
SGD37	102	7	240.1	6.8	37/50	150010001345	650	11/2″
	116	8	218.9	6.2
	145	10	197.7	5.6
	174	12	176.6	5
SGD45	102	7	261.3	7.4	45/60	150010001345	680	11/2″
	116	8	247.2	7
	145	10	218.9	6.2
	174	12	197.7	5.6
SGD55	102	7	353.1	10	55/75	180012501670	1150	2″
	116	8	339	9.6
	145	10	300.1	8.5
	174	12	268.4	7.6
SGD75	102	7	473.2	13.4	75/100	180012501670	1200	2″
	116	8	444.9	12.6
	145	10	395.5	11.2
	174	12	353.1	10
SGD90	102	7	572	16.2	90/120	180012501670	1350	2″
	116	8	529.7	15
	145	10	487.3	13.8
	174	12	434.3	12.3
SGD110	102	7	741.5	21	110/150	230014701840	1800	2 1/2”
	116	8	699.1	19.8
	145	10	614.4	17.4
	174	12	522.6	14.8
SGD132	102	7	865.1	24.5	132/175	230014701840	1850	2 1/2”
	116	8	819.2	23.2
	145	10	723.9	20.5
	174	12	614.4	17.4
SGD160	102	7	1013.4	28.7	160/200	230014701840	2000	2 1/2”
	116	8	974.6	27.6
	145	10	868.6	24.6
	174	12	759.2	21.5
SGD185	102	7	1129.9	32	185/250	315019802152	3500	DN85
	116	8	1073.4	30.4
	145	10	967.5	27.4
	174	12	875.7	24.8
SGD220	102	7	1271.2	36	220/300	315019802152	3800	DN85
	116	8	1211.1	34.3
	145	10	1066.4	30.2
	174	12	978.1	27.7
SGD250	102	7	1483	42	250/350	315019802152	4000	DN85
	116	8	1430.1	40.5
	145	10	1348.8	38.2
	174	12	1218.2	34.5
SGD315	102	7	1800.8	51	315/430	400019802152	6000	DN110
	116	8	1772.6	50.2
	145	10	1571.3	44.5
	174	12	1412.4	40
SGD355	102	7	2259.8	64	355/480	400019802152	6500	DN110
	116	8	2153.9	61
	145	10	1995	56.5
	174	12	1730.2	49
Motor Protection Class: IP23/IP54/IP55 or as per your required
Voltage: 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests.

Company Profile

After Sales Service

Before sale
Professional online salesman can solve compressor system problems for you.
Provide free air compressor energy saving solutions to help you save operating costs.
After sale
Online professional after-sales service Online professional after-sales service until the problem is solved.
After commissioning, the warranty is 1 year or the delivery date is 16 months, which depends on the first warranty of the whole machine (except repair consumables).
The number of spare parts is sufficient to ensure good after-sales service.

FAQ

Q1: What is the rotor speed of the main engine?
A1: 2980rmp.
Q2: What is your delivery time?
A2: Usually, 5-7 days. (OEM order: 15 days)
Q3: Can you provide water-cooled air compressors?
A3: Yes, we can (usually air-cooled).
Q4: What is the payment deadline?
A4: T/T, L/C, Western Union, etc. We can also accept USD, RMB and other currencies.
Q5: Do you accept customized voltage?
A5: Yes. 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or according to your requirements.
Q6: What is your air compressor warranty?
A6: One year for the whole machine (excluding consumable spare parts), technical support can be provided according to your needs.
Q7: Can you accept OEM orders?
A7: Yes, OEM orders are warmly welcome.
Q8: How about your customer service and after-sales service?
A8: 24-hour online support, 48-hour problem solving commitment.
Q9: Do you have spare parts?
A9: Yes, we have.
Q10: What is the initial lubricant you use on the air compressor?
A10: A total of 46# mineral oil.

Choosing the Right Air Compressor For Your Home

You will find that air compressors are indispensable tools for a variety of situations, including garages, home workshops, and basements. These tools can power a variety of tools, and each model is sized to suit the job at hand. Because air compressors have only 1 motor, they are lightweight, compact, and easy to handle. Using 1 air compressor to power several tools will also reduce the wear and tear on individual components. This article will introduce some important characteristics to look for when choosing the right air compressor for your home.

Positive displacement

A positive displacement compressor applies pressure to a fluid, whereas a centrifugal 1 does the opposite. A positive displacement compressor creates the desired pressure by trapping air and increasing its volume. Its discharge valve releases the high-pressure gas. These compressors are used in industrial applications and nuclear power plants. The difference between a positive and negative displacement compressor is that a positive displacement compressor can compress and release air at a consistent rate.
A positive displacement air compressor uses a reciprocating piston to compress air. This reduces the volume of the air in the compression chamber, and a discharge valve opens when the pressure reaches the desired level. These compressors are used in bicycle pumps and other pneumatic tools. Positive displacement air compressors have multiple inlet ports and have several configurations. Positive displacement air compressors have a single-acting and double-acting piston, and can be oil-lubricated or oil-free.
A positive displacement air compressor is different from a dynamic compressor. It draws air into the compression chambers and then releases the pressure when the valve is opened. Positive displacement compressors are common in industrial applications and are available in single-acting, double-acting, and oil-lubricated models. Large piston compressors have ventilated intermediate pieces and crossheads on gudgeon pins. Smaller models have permanently sealed crankcases with bearings.
air-compressor

Oil-free

Oil-free air compressors have some advantages over their oil-lubricated counterparts. They do not require lubrication oil because they are coated with Teflon. The material has 1 of the lowest coefficients of friction and is layered, so it slides past other layers with little effort. Because of this, oil-free compressors tend to be cheaper and still deliver comparable performance. Oil-free compressors are a good choice for industrial applications.
The life of an oil-free air compressor is significantly longer than an oil-lubricated counterpart. These models can operate up to 2,000 hours, 4 times longer than the average oil-lubed compressor. Oil-free compressors also have a significantly lower operating noise than their oil-lubricated counterparts. And because they don’t need oil changes, they are quieter. Some even last up to 2,000 hours.
An oil-free air compressor is a good choice if your application requires high levels of purity. Several applications require ultra-pure air, and even a drop of oil can cause product spoilage or damage to production equipment. In addition to the health risks, an oil-free air compressor reduces the costs associated with oil contamination and minimizes leaks. It also eliminates the need for oil collection, disposal, and treatment.
A typical oil-free air compressor is very efficient, requiring only about 18% of the full load horsepower. However, oil-free compressors have a higher risk of premature failure and are not recommended for large-scale industrial applications. They may also use up to 18% of the compressor’s full capacity. They may sound appealing, but you must make sure you understand the benefits of an oil-free air compressor before choosing 1 for your industrial applications.

Single-stage

A single-stage air compressor is designed to provide the power for a single pneumatic tool or device. These machines are generally smaller than two-stage compressors and produce less heat and energy. These machines aren’t designed for heavy-duty industries, but they are still highly effective for a variety of applications, including auto shops, gas stations, and various manufacturing plants. They can also be used in borewells, as they are suitable for small spaces with low air flow requirements.
A single-stage air compressor has 1 cylinder and 2 valves – the inlet and the delivery valves. Both of these valves function mechanically, with the inlet valve controlling torque and the delivery 1 controlling air pressure. Generally, single-stage compressors are powered by a gas engine, but there are also electric models available. The single-stage air compressor is the most common type of air compressor. It has a single cylinder, 1 piston, and 1 air cylinder.
The single-stage air compressors are used for small projects or personal use. A two-stage air compressor is more effective for industrial projects. Its longer air end life makes it more efficient. It is also more efficient for use in the automotive industry, where the engine has many cylinders. In general, single-stage compressors require a higher power level. The single-stage model is ideal for small projects, while a two-stage 1 is suitable for larger-scale arsenals.
air-compressor

CFM

The cubic foot-per-minute (CFM) of an air compressor is the output of the machine. In order to calculate the CFM level, start by looking at the compressor’s specifications. You should know how many cubic feet the unit can hold and how many pounds per square inch it can compress. Once you have these information, you can calculate the CFM. Now you can use these numbers to select an appropriate air compressor for your needs.
The most common way to increase the CFM of an air compressor is to turn the regulator down. By turning the dial down, the air compressor will produce more than 10 CFM. You can also try connecting 2 output valves. Make sure that the settings are adjusted properly before you begin. This will ensure that your air compressor is functioning at its maximum efficiency and lifespan. To increase the CFM of your air compressor, first check that your regulator is calibrated for the desired pressure level.
To calculate the CFM of an air compressor, first determine the tank volume of the machine. Then, multiply this volume by the time it takes to fill the tank. Then, divide the result by 60 seconds to calculate the CFM. Once you know how much air your machine can hold, you can choose a suitable air compressor. If you’re working in a confined area, you should buy a tool with a large tank.

PSI

The PSI of an air compressor is the pressure that it can output. A typical air compressor has a gauge connected to the airline at the bottom, next to it, or between the two. The gauge tells the actual pressure of the air compressor, while the cut-out pressure is determined by the manufacturer. The manufacturer recommends that you set the cut-out pressure 20 to 40 PSI higher than the factory recommended pressure. If you want to set the pressure for your nail gun, you can use the cut-in and cut-out pressures on your compressor, and the tank won’t exceed this range.
The PSI of an air compressor measures the force that it can deliver, which is often in pounds per square inch. For most air tools, you need at least 40 to 90 psi. In general, reciprocating air compressors work on an on/off basis. This relationship is known as the duty cycle. All air compressors are rated for a particular duty cycle, such as 50 percent on and 20-5 percent off.
The Psig of an air compressor is not free, as many people believe. The PSI of an air compressor is not free, but it is essential to maintain it for safe operations. If you’re having trouble maintaining a consistent pressure, consider turning down the PSI of your compressor by 2 psig. This will determine the critical pressure for the machine. You’ll also increase the amount of energy in the system by 1 percent.
air-compressor

Power source

The power source for an air compressor is crucial in its operation. Without the correct voltage and amperage, air compressors will not function properly. The power source must be close to the compressor so that it can plug into an electrical outlet. If it is too far from the outlet, the compressor may not be able to build enough pressure. When this happens, the fuse inside the air compressor will turn off to protect the user. The power source should be a safe distance from the compressor.
Most manufacturers do not specify the power source for an air compressor. Depending on the horsepower, the compressor will require approximately 4 amps of power. A one-horsepower compressor would draw about 12 amps. If it were powered by a typical 120-volt household supply, its motor would exceed the 15-amp breaker capacity. A larger air compressor, however, will require a separate 15-amp power source, making it impossible to use it with this type of power source.
The power source for an air compressor is typically electrical alternating current (AC) that is equivalent to the voltage on a standard wall outlet. A three-phase air compressor, on the other hand, requires a special AC supply with 3 electrical offset pulses. Regardless of the type of air compressor, the power source must be compatible with the incoming power service. One of the most common problems when attempting to connect an air compressor to an AC power source is undersized wire. This results in low voltage and high amperes, tripping of over-load relays and blown fuses.

China Similar CZPT 37kw 50HP Stationary Oilless Direct Driven AC Power Rotary Single Screw Air Compressor for Industrial Plant

China 11kw 15kw 10HP 15HP 20HP Energy Saving Silent Electric Rotary Type Screw Air Compressor

Product Description

4kw~250kw Screw Air Compressors

1. Pictures

2.Technical data

Type		SSD-15A	SSD-20A	SSD-25A	SSD-30A	SSD-50A	SSD-75A
Motor power	Kw/hp	11/15	15/20	18.5/25	22/30	37/50	55/75
Air Volume	(m³/m)/Mpa	1.65/0.7	2.25/0.7	3.22/0.7	3.6/0.7	6.58/0.7	10.8/0.7
		1.53/0.8	2.03/0.8	3.01/0.8	3.56/0.8	6.26/0.8	10.1/0.8
		1.32/1	1.82/1	2.52/1	3.07/1	5.8/1	8.5/1
		1.1/1.2	1.55/1.2	2.3/1.2	2.84/1.2	5.06/1.2	7.69/1.2
Cooling mode		Air cooled	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled
Drive mode		Directly connected
Starting mode		Y-△	Y-△	Y-△	Y-△	Y-△	Y-△
L×W×H (mm)	L	950	950	1150	1250	1500	2045
	W	800	800	900	750	970	1250
	H	1140	1140	1260	1110	1340	1705
Net weight	Kg	400	440	510	550	770	1750
Noise	dB(A)	63±2	63±2	63±2	63±2	63±2	65±2
Diameter of outlet pipe		G3/4″	G3/4″	G1¹/4″	G1¹/4″	G1¹/2″	G2″

SSD-100A	SSD-120A	SSD-150A	SSD-175A	SSD-200A	SSD-250A	SSD-300A	SSD-350A
75/100	90/120	110/150	132/175	160/200	185/250	220/300	250/350
13.5/0.7	16.2/0.7	21.6/0.7	25.2/0.7	28.7/0.7	32.5/0.7	36.8/0.7	42.7/0.7
12.7/0.8	15.2/0.8	20.1/0.8	24/0.8	27.6/0.8	30.8/0.8	34.7/0.8	40.8/0.8
11.3/1	14.3/1	17.5/1	21/1	25.3/1	28.2/1	30.8/1	38.1/1
10/1.2	12.9/1.2	16/1.2	18.3/1.2	22.4/1.2	25.1/1.2	28.9/1.2	34.9/1.2
Air cooled	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled
Directly connected
Y-△	Y-△	Y-△	Y-△	Y-△	Y-△	Y-△	Y-△
2045	2329	2578	2578	2856	2856	3092	3092
1250	1516	1656	1656	1898	1898	1944	1944
1705	1745	1920	1920	1895	1895	2143	2143
1820	2200	2950	3550	3880	4050	4700	5100
68±2	68±2	68±2	72±2	72±2	72±2	76±2	76±2
G2″	DN65	DN65	DN65	DN80	DN80	DN80	DN80

3. Specifications

No.	Part Name	Manufacturer or Brand
1	Air end	Baosi
2	Pressure sensor	Yishun, HangZhou
3	Temperature sensor	Yishun, HangZhou
4	intake valve	Red star,HangZhou
5	Starting panel	Schneider
6	Frequency converter	Zhongchen
7	PLC Controller (English)	PLOT,HangZhou
8	Contactor	Schneider
9	Motor	Xihu (West Lake) Dis.n, Lihao
10	air filter	HD
11	Oil filter	HD
12	Oil-air separator element	HD
13	Min. pressure valve	Red star,HangZhou
14	Air Cooler	Yaqi
15	Oil tank	Xihu (West Lake) Dis. vessel
16	Safety valve	HangZhou
17	Fan motor	Shiyibai

4.Features
Less parts, no consumables:
reliable longtime running, which is applied to industries as metallurgy, mine, mechanical, construction, food etc
Low noise and low running cost:
Our screw compressors apply imported bearing, rotor is balance tested good by balance machine, there is little vibration and low noise
Low oil consumption:
The oil-moisture separator is key part for screw compressor, CZPT screw compressor applies most advanced separator, technical data is controlled reliable, oil consumption is controlled under 3ppm
Intelligent micro computer control technology is realized for fully monitored and instructed by operators, and it can runs with no-man operation due to remote control. The instruction and data is displayed on the screen panel, and it can detects faults automatically and gives an alarm, and adjust air flow automatically
Block:
German style block, 0 vibration, low noise, big rotor, low RPM, direct driven. Rotor is 5:6 unbalanced line high efficiency..
Cooler:
cooler is assembled with filtration screen which keeps clean in the cooler
Motor:
high performance motor ensures the screw compressor operated in bad environments
Bearing:
Sweden CZPT bearing, anti-friction anti-corrosion
Pipes:
European material high temperature 135celsius and high pressure resistance, no leakage

ZheJiang UFo Compressor & System Co.,Ltd
Add: 206,1506 LianhangRoad,Xihu (West Lake) Dis. district,ZheJiang ,China

Types of Air Compressors

There are many types of Air Compressors available on the market. Learn which 1 is right for your needs and what makes 1 better than another. Find out more about Single-stage models, Oil-free models, and Low-noise models. This article will explain these types and help you decide which 1 you need. You can also learn about Air Compressors that have single-stage compressors. If you are looking for a high-quality compressor, this article will help you choose a unit.
air-compressor

Air Compressors

Air compressors work by forcing atmospheric air through an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder through an exhaust valve. One of the most common types of air compressor is the reciprocating type. Another type of compressor is a single-stage piston. These types of compressors compress air in 1 stroke – equivalent to the complete rotation of the piston’s crankshaft.
These devices change electrical or mechanical energy into pressurized air. When air is compressed, its volume decreases, increasing its pressure. Air compressors typically have a minimum pressure of 30 bars. The lower pressure band is the range of air pressure. Most compressors are controlled separately, but network controls can be used to interconnect multiple compressors. This type of controller will not work for all types of compressors. There are other types of air compressors that can communicate with each other.
Compressed air has multiple applications in all kinds of industries. In agriculture, it can power pneumatically powered material handling machines for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also used in the pharmaceutical industry for mixing tanks, packaging, and conveyor systems. Portable air compressors, which can be powered by diesel fuel, are frequently used at remote drilling sites. Portable air compressors are also commonly used in oil and gas. They can be used to remotely control valves and install reactor rods.
Whether you use an air compressor for agricultural purposes or in a manufacturing setting, there are some features to consider when choosing an air compressor for your needs. A good compressor will have a safety device. It will automatically shut off the input air and output air once sufficient compressing has been achieved. These features will help your air compressor remain efficient and protect your equipment. The safety device is an important feature of any air compressor to increase its overall efficiency.
Vane air compressors are the most common type. They are generally smaller and less powerful than reciprocating piston compressors, so you can use 1 of these for applications that are under 100 horsepower. The vane air compressors have low compression ratios and high capacities, but they are generally limited to low-power applications. Vane compressors tend to run hot, and they typically have a low compression ratio. It is important to choose the correct oil viscosity for your compressor.
air-compressor

Single-stage models

When comparing single-stage air compressors, look for the term “stages.” Multi-stage compressors use 2 stages and can handle more capacity and pressure. One stage involves pressurizing air using a piston and a lower-pressure cylinder. This compressed air is then moved to a storage tank. Single-stage models tend to be more energy-efficient than their two-stage counterparts. But if you don’t need a high-pressure cylinder, a single-stage air compressor can be the best choice.
Although single-stage air compressors produce less power, they can produce enough air to power pneumatic tools and other pneumatic equipment. These single-stage units are most useful for smaller-scale home projects and DIY projects. For more industrial purposes, a dual-stage model is the best choice. But if you’re in a hurry, a single-stage unit may be sufficient. Ultimately, it depends on what you plan to do with the air compressor.
Single-stage air compressors feature a single cylinder, 1 piston stroke for each revolution of pressurized air. Single-stage compressors are typically smaller and more compact, making them a good choice for smaller work environments. Their cfm capacity (cubic feet per minute) is an important indicator of operating capacity. If you plan to use multiple pneumatic tools, you will probably need a higher cfm model. Similarly, the horsepower of single-stage compressors indicates its working capacity. One horsepower moves 550 pounds per foot per minute.
Multi-stage air compressors are generally more expensive and more energy-efficient than single-stage units, but they can offer higher air flow rates. While they may be more complex, they can lower general operating expenses. If you plan on using your air compressor for industrial or commercial use, a dual-stage model might be the best choice. However, if you’re planning to use the air compressor for mass production, a single-stage model may be the best choice.
Single-stage air compressors have the same piston size and number of inlets, while dual-stage models have a smaller first piston and a much longer second piston. Both have a cooling tube in between the 2 pistons to reduce the air temperature before the second round of compression. The single-stage model is typically small and portable, while the double-stage air compressor is stationary. These compressors can both be stationary and large.

Low-noise models

Despite its name, low-noise models of air compressors are not all the same. The noise level of a compressor can be affected by several factors, including the power source and proximity to the machine. Reciprocal compressors are generally louder than electric ones because of their many moving parts. By contrast, rotary-screw and scroll compressors have fewer moving parts and are quieter.
The noise level of a gas-powered air compressor can be extremely high, making it unsuitable for use indoors. To combat this problem, you can choose an electric model. The noise level of a compressor is primarily caused by motor friction. The cover of a piston is also a major factor in noise, as pistons with minimal covers will produce a lot of noise. Previously, oil was required for a quiet compressor. However, this has changed thanks to the medical industry’s demand for oil-free models.
The CZPT EC28M Quiet Air Compressor is another model that features quiet operation. This air compressor makes 59dB of noise. This level is low enough to allow you to carry on normal conversations while it cycles. In addition, this compressor has an industrial oil-free pump and a 2.8 Amp direct-drive induction motor. These 2 features make it a great choice for businesses.
Low-noise models of air compressors are available for the construction industry. However, these compressors are not necessarily low-quality, which is why you should consider the noise level of your air tool before purchasing one. The specialists at CZPT can recommend the low-noise models for your particular application and space. Noise can distract people who work near the air compressor. That is why many businesses now opt for these models.
air-compressor

Oil-free models

A number of oil-free models of air compressors are available, but what makes them special? Oil-free compressors don’t contain oil, so they’re lubricated by grease instead. They’re a good choice if you’re working with a small compressor and don’t want to risk damaging it. On the other hand, oil-free models do generate significant amounts of heat, which can damage the compressor. Higher pressure can grind the compressor against itself, or even warp it.
A few words of knowledge can help you choose the best oil-free air compressor for your needs. For example, a compressor’s horsepower is a measurement of how powerful the motor is. Higher horsepower means a higher PSI or ACFM. You can also use the ACFM to compare the two. Scroll technology is a modern air compression system that uses a stationary and mobile spiral. This reduces the volume of air in the compressor by directing it to the center.
Purchasing an oil-free air compressor doesn’t have to be a daunting task, though. A good distributor can advise you on what type of oil-free air compressor is right for you. This way, you can save money and enjoy peace of mind while using your air compressor. And, of course, the best way to get a great deal on an air compressor is to speak to a distributor who is knowledgeable about the products available.
An oil-free air compressor is a great option for businesses that are sensitive to the contamination of air. For example, in the pharmaceutical and food industry, a minuscule oil could spoil a product or even damage production equipment. Oil-free air compressors generally have lower maintenance costs than oil-flooded models because there are fewer moving parts. Because of this, oilless air compressors require fewer maintenance and may still need to be replaced occasionally.
A few advantages of an oil-free air compressor over an oil-lubricated 1 include lower noise levels. Oil-free air compressors tend to be less noisy and run more quietly than oil-injected ones, but you should still carefully weigh the pros and cons before making a decision. Also, consider how much you use your air compressor before choosing a model. The pros outweigh the cons. In the end, you’ll be glad you chose an oil-free air compressor.

China 11kw 15kw 10HP 15HP 20HP Energy Saving Silent Electric Rotary Type Screw Air Compressor

China High Reliability Low Noise AC Power Cost Saving Singel Screw Oil Free Water Lubricated Rotary Screw Type Air Compressor

Product Description

Single screw compressor has a balance of force, the vibration is small. Water to replace oil, to achieve lubrication, cooling, sealing noise, to provide qualified oil-free air, discharge of water without special treatment, in line with environmental protection requirements.
It is extensively used in conjunction with an oxygen generator and has a single screw with a set speed and a capacity ranging from 1 to 43 m³/min.
The symmetry of the structure and the potential of a return hole are set so that the radial and axial force of the single screw compressor can be entirely balanced, resulting in a design life of up to 300,000 hours.

Certifications

Product Parameters

Model	Maximum Working Pressure		Capacity(FAD)*		Installed Motor Power		Cooling Method	Noise Level	Air Outlet Pipe Diameter	Dimension			Weight
			50hz
	bar(g)	psig	m³/min	cfm	kw	hp		dB(A)		L	W	H	kg
RD7.5A	7	101	1.2	42	7.5	10	Air Cooling	61	G1”	1135	800	1000	480
	8	116	1.1	39
	10	145	1	35
RD11A	7	101	1.6	57	11	15	Air Cooling	61	G1”	1135	800	1000	500
	8	116	1.5	53
	10	145	1.3	46
RD15A	7	101	2.4	85	15	20	Air Cooling	61	G1”	1400	1000	1200	520
	8	116	2.3	81
	10	145	2	71
RD18.5A	7	101	3.1	109	18.5	25	Air Cooling	61	G1”	1400	1000	1200	520
	8	116	2.8	99
	10	145	2.5	88
RD22A	7	101	3.7	131	22	30	Air Cooling	61	G1”	1400	1000	1200	560
	8	116	3.4	120
	10	145	3	106
RD30A	7	101	5.2	184	30	40	Air Cooling	64	G1.5”	1920	1170	1320	1050
	8	116	4.7	166
	10	145	4.3	152
RD37A	7	101	6.1	215	37	50	Air Cooling	66	G1.5”	1920	1170	1320	1050
	8	116	5.6	198
	10	145	5	177
RD45A	7	101	7.5	265	45	60	Air Cooling	66	G2”	1920	1170	1320	1610
	8	116	6.8	240
	10	145	6	212
RD55W	7	101	10	353	55	74	Air Cooling	66	DN50	1930	1320	1535	1610
	8	116	9	318
	10	145	7.8	275
RD75W	7	101	13	459	75	100	Air Cooling	70	DN50	1930	1320	1535	1880
	8	116	12	424
	10	145	10	353
RD90W	7	101	15.5	547	90	120	Air Cooling	70	DN80	1930	1320	1535	2000
	8	116	14	494
	10	145	12.5	441
RD110W	7	101	20	706	110	147	Air Cooling	70	DN80	2150	1600	1680	3100
	8	116	18	636
	10	145	16	565
RD132W	7	101	25	883	132	177	Air Cooling	70	DN80	2150	1600	1680	3250
	8	116	23	812
	10	145	20	706
RD160W	7	101	27	954	160	215	Air Cooling	74	DN100	2150	1600	1680	3200
	8	116	25.5	901
	10	145	24	848
RD185W	7	101	30	1059	185	248	Air Cooling	74	DN100	2860	1500	1750	4500
	8	116	28	989
	10	145	25	883
RD200W	7	101	36	1271	200	268	Air Cooling	74	DN100	2860	1500	1750	4500
	8	116	33	1165
	10	145	27	954
RD250W	7	101	43	1519	250	335	Air Cooling	74	DN100	4150	1500	1800	5200
	8	116	41	1448
	10	145	38	1342

Detailed Photos

The Air Compressor Is a Versatile Tool

Oil-injected

Oil-free

Gasoline

Electricity

Variable frequency drive

China High Reliability Low Noise AC Power Cost Saving Singel Screw Oil Free Water Lubricated Rotary Screw Type Air Compressor

China (SCR20pm2 Series) New Design Japanese Technology Permanent Magnet Screw Type Air Compressor Rotary Industrial Compressor Energy Saving VSD Compressor

Product Description

Company:ZheJiang Screw Compressor Co.,Ltd

Address:No.1555 Tingfeng Rd. North Xihu (West Lake) Dis.n Industrial Zone, ZheJiang P.R.China

Choosing an Air Compressor

Considering a new Air Compressor? Here are some tips to make the decision easier. Learn the pros and cons of each type, including the differences between oil-injected and oil-free models, single stage and positive displacement. In addition, learn more about the different technologies that are available for your air compressor. It is important to choose an appropriate unit for the type of work you do. Here are some of the best compressors available today.
air-compressor

Positive displacement

There are several different types of air compressors, but most are positive displacement air compressors. They use a rotary or reciprocating component to compress air. The reciprocating component compresses air by reducing the volume of the chamber. Positive displacement compressors are used in bicycle pumps, chemical plants, and refrigerators. Positive displacement air compressors use multiple inlet ports. Despite the various types, the principle of operation remains the same.
Another type of positive displacement air compressor is a reciprocating piston. The piston inside a cylinder moves up and down, causing the compressed air to fill the upper part of the cylinder. These air compressors are used in a variety of different applications, including blowing bottles and gas pipelines. These air compressors can be water-cooled, lubricated, or non-lubricated. Different types have different capacities and air pressures.
A positive displacement flowmeter uses a rotating chamber that divides continuous fluid into discrete portions. The number of times the chamber is filled and discharged can be used to estimate the flow rate. The rotation speed of the measuring chamber is directly proportional to the flow rate. The drawbacks of this type of positive displacement flowmeter are that it is prone to jamming. If the fluid contains particles, it may be too thick for the meter to determine flow rate.
A negative displacement air compressor was invented in 1860 and is the oldest type of compressor. It uses 2 lobes positioned in a circular cavity. One rotor is connected to an engine, while the other pushes the other 1 to spin in the opposite direction. Negative displacement compressors are low-maintenance, but they do require more precision. They are often used in nuclear power plants because they use the kinetic energy of the rotating elements to produce pressure.

Oil-injected

Oil-flooded or oil-injected air compressors use liquid to seal and lubricate moving parts and reduce noise. Oil-flooded air compressors are effective for a variety of pneumatic tools and accessories. Some models have a thermostat that controls the amount of oil used during operation. Other types of oil-flooded air compressors are piston-type models. Here is an overview of the basic differences between these 2 air compressors.
An oil-injected air compressor is more expensive than a comparable oil-free air compressor, but its advantages far outweigh its disadvantages. An oil-free compressor is quieter, requires less maintenance, and has a lower price tag. It also offers a greater degree of air purity. A number of other advantages may also make this type of air compressor the better choice for many industrial settings. If you need a high-pressure compressor in a tight space, consider the benefits of an oil-free system.
Oil-injected air compressors require more maintenance than oil-free models. Both types of air compressors offer similar capacity and ISO 8573-1 Class 0 and 1-2 purity, but the oil-injected systems require more air-treatment components. They require an activated carbon filter and coalescing filter. Oil-injected air compressors will likely remain the standard for industrial air compressors for many years. And since their performance and efficiency are comparable, it may be worthwhile to invest in some point-of-use air treatment.
Both types of air compressors have their benefits. However, choosing between oil-free and oil-injected air compressors is not as straightforward as you might think. Whichever type you choose, make sure it will meet your needs. The benefits of an oil-injected air compressor outweigh their disadvantages. In general, oil-injected air compressors are more durable and can last longer than oil-free models. The only downside is their higher price.
air-compressor

Oil-free

When choosing an air compressor for your company, you’ll need to determine what it is going to be used for. For example, if you’re planning on using it to power multiple workers, you should consider getting an oil-free compressor. An oil-free compressor, on the other hand, is quieter and can power several workers at a time. If you’re a contractor, the most important consideration will be the type of jobs you’ll be doing. Higher air pressure means greater demand for air flow, and more pressure can damage the equipment.
Oil-free compressed air is certified 100% free of contaminants. Technically, oil-free air is not completely free of foreign matter, but it is extremely low within the limits of practical air quality. A technically oil-free air compressor might have a total oil level of 0.003 mg/m3. If you’re in need of a technically oil-free air compressor, you must install an air treatment equipment after your current compressor.
If you’re in the manufacturing industry, a good oil-free air compressor will save you money and reduce your environmental impact. Many of these tools require air compressors to work, and this equipment will ensure that they don’t get contaminated. To buy the best oil-free compressor, you should learn a bit about the different terms used by compressor repair companies. ACFM, for example, is the amount of air that can be compressed in 1 minute at rated conditions.
When you’re using an oil-free air compressor, you should know that the overall life of the device will be much shorter. Compared to an oil-flooded rotary screw air compressor, an oil-free compressor typically has a lifespan of 50 thousand hours. But it’s important to understand that this type of compressor can still cause damage to piping and processes. Therefore, you should choose an oil-free compressor when you need to clean air for your business.

Single-stage

A single-stage air compressor, also known as a piston air compressor, compresses air only once before storing it in a cylinder. This stored air has enough energy to power a variety of pneumatic tools, such as screwdrivers, chisels, and wrenches. These units are also ideally suited for low-flow applications and are widely used in gas stations, auto shops, and various manufacturing plants.
A single-stage air compressor uses 2 valves – 1 for inlet and 1 for outlet – to transfer compressed air. Both valves are actuated by springs. The inlet valve has a slight curvature to provide protection from damage. The compressor’s outlet valve opens when the pressure in the cylinder is higher than the pressure in the storage tank. The piston moves very quickly inside the cylinder, exerting a high amount of force throughout the compression process. This high piston speed is a common cause of compressor wear and tear.
A single-stage air compressor is ideal for smaller tradesmen and small construction crews. Its lightweight and compact design make it easier to transport and store. While it may be tempting to buy the first cheap air compressor you see, it’s important to balance the price against performance to choose the right air compressor for your needs. The best single-stage air compressor is 1 that provides excellent performance and durability. Its two-stage counterpart is designed for larger construction teams and large applications.
The main difference between a single-stage and a two-stage air compressor lies in their capacity. A single-stage air compressor compresses air only once and delivers it into the storage tank, while a two-stage compressor compresses it twice, creating double the pressure. Because of this, single-stage air compressors are cheaper and versatile than their counterparts, which means that they can be used for multiple purposes.
air-compressor

Low-noise

A low-noise air compressor is a type of industrial compressor that is less noisy than regular air compressors. These are generally smaller machines designed for smaller factories and workshops with a few to several employees. They are designed to handle mid-weight volumes of compressed air per day. This type of compressor is especially useful for smaller manufacturing businesses that need to produce compressed air for medical applications. Small breweries can also benefit from the low-noise capabilities of these compressors.
Low-noise air compressors come in various sizes and features. For smaller jobs, you can purchase a one-gallon model that is lightweight and portable. For larger jobs, you can purchase 1 with a larger tank that can provide more pressure for longer jobs. However, a larger tank will make the compressor heavier and harder to transport. To avoid this, make sure to check the size of the tank and how much power it can handle.
Considering a low-noise air compressor for your business? If so, you’ve come to the right place. There are a variety of affordable and dependable low-noise options to choose from. A CAT 10020C, for example, is designed to provide high-volume air to many outlets at once. A CAT 10020C comes with a 10-gallon tank, wheels, and a carrying handle.
Noise levels can also affect the productivity of employees. When employees work with air compressors in close proximity to each other, they may develop tinnitus. If employees are free from tinnitus because of the loud noise, they are likely to work more efficiently. Moreover, it will be easier for them to focus and communicate efficiently. If you need a compressor, a low-noise 1 is an excellent choice.

China (SCR20pm2 Series) New Design Japanese Technology Permanent Magnet Screw Type Air Compressor Rotary Industrial Compressor Energy Saving VSD Compressor

China Good Price and Quality IP54 Motor Industrial Fix Speed Rotary Screw Air Compressor for Factory

Product Description

30hp/22kw Mini Portable Industria Rotary Electric Screw Air-Compressors Machine Pricesused in machinery, medical, textile, food, electricity, iron and steel, automabile, petroleum, chemical and other industries.

30hp/22kw Mini Portable Industria Rotary Electric Screw Air-Compressors Machine Prices
Item NO.	ZD-22	Drive type	Direct Drive
Discharge Pressure	0.8MPa	Motor Power	22KW/30HP
Air Delivery	3.6M3/MIN	Weight	460KG
Noise	73DB	Dimensions (MM)	13808501160
Cooling model	Air –Cooling	Compression stage	single stage

Others Screw Air Compressor Technical Destails

Item No.	Air Delivery (m3/min)	Discharge Pressure (Mpa)	Motor Power ( KW )	Direct Drive	Cooling model	Compression stage	Dimensions (LWH MM)	Weight (kg)
ZD7.5	1.2	0.8	7.5/10HP	Direct Drive	Air –Cooling	single stage	800700930	240
ZD11	2	0.8	11/15HP	Direct Drive	Air –Cooling	single stage	10807501000	450
ZD15	2.4	0.8	15/20HP	Direct Drive	Air –Cooling	single stage	10807501000	450
ZD18.5	3	0.8	18.5/25HP	Direct Drive	Air –Cooling	single stage	12507501130	620
ZD22	3.6	0.8	22/30HP	Direct Drive	Air –Cooling	single stage	12507501130	500
ZD30	5	0.8	30/40HP	Direct Drive	Air –Cooling	single stage	12507501130	680
ZD37	6.4	0.8	37/50HP	Direct Drive	Air –Cooling	single stage	15009701340	800
ZD45	7.5	0.8	45/60HP	Direct Drive	Air –Cooling	single stage	170014001100	1100
ZD55	10	0.8	55/75HP	Direct Drive	Air –Cooling	single stage	170014001410	1200
ZD75	13	0.8	75/100HP	Direct Drive	Air –Cooling	single stage	180011001450	1400
ZD90	16	0.8	90/125HP	Direct Drive	Air –Cooling	single stage	200014501500	1750
ZD110	20	0.8	110/150HP	Direct Drive	Air –Cooling	single stage	236015502000	3100
ZD132	24	0.8	132/175HP	Direct Drive	Air –Cooling	single stage	236015501930	3000
ZD160	27	0.8	160/220HP	Direct Drive	Air –Cooling	single stage	310018002065	3200

Main Features

1) Large displacement: Displacement 10% higher than ordinary piston compressor.
2) Energy-saving: Compared with piston air compressor, this series of models for the new national standard 2 energy efficiency products, excellent energy saving.
3) Easy to operate: 24 hours unattended all day work, free load automatically start, full load automatically shut down.
4) Strong stability:Under long time working, displacement and pressure stable, no crash phenomenon, low failure rate.

Packing & Delivery

Our Company

HangZhou CZPT Machinery Technology Co.,Ltd is industry and trade company which modern enterprise integrating scientific research, development, manufacture and trading. Based on integrity, responsibility and cooperation,our company have professional R&D and sales team, providing one-stop service for customers.

Our company mainly products is screw Air Compressor , Piston Air Compressor,Drill Machine, Drill Rig Parts ,Jack Hammer , Boring Machine, Tunnel Shotcreting Machine and Other Machinery Hardware Product etc.After many years of production and research and development, we have obtained more than 20 national patents. The products are sold at home and abroad and are well received by customers.

How to Repair and Maintain an Air Compressor

A compressor is a device used to move air from 1 place to another. Air enters the air compressor through the intake valve. Inside the compressor, the vanes on the inner rotor rotate within an eccentric cavity. The self-adjusting length arm divides the space into multiple cavities of different sizes. As the rotor rotates, air fills the cavity. As air flows around the cavity, it builds pressure and is squeezed out of the compressor output.

Positive displacement

Positive displacement air compressors use reciprocating pistons to compress air. Gas is drawn in during the suction stroke and compressed by moving the piston in the opposite direction. It then discharges the compressed air by moving it in the opposite direction. This type of air compressor is most commonly found in automobiles, refrigerators, and other applications that require high pressure. However, it is not as efficient as a centrifugal compressor.
Most modern air compressors use positive displacement. Positive displacement models capture a volume of air in the compression chamber and distribute it when the pump is operating at maximum capacity. They are more economical than their negative displacement counterparts. Reciprocating screw air compressors are the most common positive displacement compressors. The reciprocating screw air compressor adopts a water jacket around the cylinder and is often used in processes such as oil drilling.
A bicycle pump is an example of positive displacement compression. Air is drawn into the cylinder and compressed by the moving piston. A piston compressor works on the same principle, but it uses a rotating crankshaft or connecting rod to complete the movement of the pistons. There are 2 types of positive displacement compressors: single-acting and double-acting. Both types work on the same principle, both are positive displacement compressors. The difference between the 2 types is the pressure ratio.
In air compression, positive displacement compression reduces the volume of the fluid and reduces its viscosity. This results in higher pressure ratios and is used in centrifugal, axial, and scroll compressors. Positive displacement is a common feature of most air compressors. Positive displacement compressors offer the same benefits and are more energy-efficient when applied to oil-free and gas applications. This type of compression is usually the best choice for low-pressure applications.
air-compressor

oil free

If you’re looking for an air compressor for your business, consider an oil-free air compressor. These models offer cleaner, quieter operation than traditional air compressors and require less maintenance. They also meet ISO Class 0 or Class 1 air purity requirements. Oil-free air compressors are also quieter, with fewer moving parts and less noise. These advantages make oil-free air compressors an ideal solution for many commercial applications.
Air purity is critical in many industries. Even the tiniest drop of oil can damage production equipment or damage products. The best way to find an oil-free air compressor for your business is to consider the process and end product. As air quality improves, more and more businesses are turning to oil-free compressors. Some of the advantages and disadvantages of these air compressors are:
When choosing an oil-free air compressor, it is important to understand the terminology used in the industry. Knowing these terms will make it easier for you to choose the right compressor for your needs. ACTFM, or actual cubic feet per minute, is an industry term for measuring the amount of air pumped in 1 minute under rated conditions. Although a simple number, it can be very useful in determining which type of air compressor is best for your application.
The ISO 8573-1 international standard defines air quality and provides air purity classifications. The strictest classification is air purity class 0. Many manufacturers claim that oil-free air compressors meet this standard. However, a class 0 oil-free air compressor does not necessarily mean that the air is free of contaminants. In fact, Class 0 is the benchmark for air purity. While zero air quality is the highest level, that doesn’t mean it’s completely oil-free.
air-compressor

double acting

A double-acting air compressor is a device that uses compressed air to generate electricity. Its working principle is based on piston and connecting rod. The connecting rod connects the crankshaft to the piston through pins and caps. The piston moves as the piston moves. Rods are usually made of forged carbon steel. In terms of service and maintenance, double-acting compressors require regular vise maintenance and proper cleaning.
The displacement of the compressor is a measure of the displacement that the piston can produce in a certain period of time. Displacement is usually expressed in actual cubic feet per minute. The exact calculation depends on the type of cylinder and the configuration of the compressor. Single-acting cylinders can have head-end or crank-end displacement, both of which can be measured using the displacement equation. A double-acting air compressor will use this equation. 4 and 6 calculate the displacement.
Double-acting air compressors have multiple cylinders and are made of cast iron. They are water-cooled and have a mechanical connection between the piston and connecting rod. A double-acting compressor compresses air twice per revolution of the motor. One cylinder moves up, while the other cylinder moves down. The piston moves down, allowing air to enter through valve #1. During the operation of the compressor, the temperature of the air and gas increases.
Double-acting air compressors typically have high pressure and are considered workhorses. Double-acting compressors also feature intercooling and double compression. As a result, these machines tend to last longer than single-acting compressors. Its low speed and dual compression make it a workhorse in the compressor industry. Double-acting air compressors are workhorses and versatile devices.
air-compressor

fuel tank pressure switch

You can adjust the pressure in the air compressor tank by adjusting the differential pressure. You can turn the mainspring clockwise or counterclockwise to increase or decrease the pressure. This valve will open when the pressure is low enough to start the compressor. If the pressure is too low, the valve should be closed. The cut-in and cut-out pressures should be set to appropriate values. After adjusting the tank pressure, check the hysteresis of the tank pressure switch and set the desired shutoff pressure.
If the pressure in the tank falls below the cut-in level, the tank pressure switch must be replaced. You can test the switch with a multimeter. Make sure the switch is not damaged. If you can’t find the switch, you can look at the other sections. If you find any damaged or missing parts, you should replace them. Otherwise, it may be time to check the tank pressure switch. You may need to disassemble the compressor and remove the switch.
The fuel tank pressure switch is an important part of the air compressor. It keeps you informed of the amount of air delivered by the compressor. If your tank or tank is damaged, your readings will be wrong. If the pressure switch is damaged, it will not function properly and result in incorrect readings. Fortunately, there are some easy ways to fix this. To prevent this from happening, keep the tank pressure switch in good condition.
When the air pressure in the tank drops to the cut-in pressure setting, the switch allows power to flow through it. This will start the motor and pump of the air compressor. Then, if the pressure in the tank rises above the cut-off level, the switch will trip and stop the compressor. This will prevent it from being over-pressurized. Power flow will continue to flow to the motor. Depending on your compressor model, you can change the cut-in and cut-out pressures as needed.

energy source

The power supply of the air compressor is very important. Most air compressors run on 12 VDC, which is ideal for automotive use. Alternatively, you can buy a switching power supply for around $20. No matter which power supply you choose, you must ensure that it can support the maximum current of the compressor. You can find power supplies in all sizes, from quarter-horsepower to five-horsepower.
The voltage required for a three-phase air compressor will vary. Three-phase air compressors require 3 separate power cords and a three-phase electrical service panel. This is because a standard 120/240-volt electrical service panel is not sufficient to power a three-phase compressor. Additionally, three-phase compressors require 3 separate isolated wires for the engine and motor circuits. Three-phase compressors do not require a neutral wire.

China Good Price and Quality IP54 Motor Industrial Fix Speed Rotary Screw Air Compressor for Factory

China Industrial Stationary Similar CZPT Clean Silent 7-10bar Medical Oil Free Direct Driven AC Power Rotary Screw Air Compressor with GHH air end

Product Description

Industrial Silent/Mute Medical Dry Oil Free Oilless Direct Drive Rotary Double Screw Type Air Compressor Advantages

1.Clean air 1, China
Our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your machine?
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines?
A4: Yes, of course.

Q5: How long will you take to arrange production?
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome

How to Repair and Maintain an Air Compressor

Positive displacement

oil free

double acting

fuel tank pressure switch

energy source

China Industrial Stationary Similar CZPT Clean Silent 7-10bar Medical Oil Free Direct Driven AC Power Rotary Screw Air Compressor with GHH air end