Scroll Compreor

A compressor is a piece of machinery inside your hvac unit that compressor gaseous refrigerant so that it can pass through your refrigerant coil and be sent into your home to cool the air. A scroll compressor is a specific type of compressor that works by rotating pieces of metal instead of operating like a piston in an engine.

Why is a scroll compressor better? What makes AGKNX being the best Scroll Air Compressor Suppliers in China?

Scroll compressors have fewer moving parts which makes them more energy efficient, quieter, and less prone to failure. This generally provides a better experience to the homeowner as the system will cost less to operate and repair, and will produce less noise than a traditional compressor.

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Scroll compressors

Agknx is an experienced scroll pump manufacturer and distributor of products that have been used across the world. With our commitment to provide quality products that meet customers needs, we have been providing industrial gadgets that are worth your investment.

Scroll compressors have been used in refrigerants for years by using advanced technology and new design, Agknx has introduced an entirely modern product in the market. With the patented W scroll airend, our technology is way more efficient and reliable than the traditional reciprocating compressors.

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1. New generation of high-efficient air end

2. Permanent magnetic motor
3. DKF bearing
4. Energy-saving air inlet control system
5. High performance frequency converter
6. Highly efficient cooling system
7. Highly efficient preofessional filtering system

300cfm Air brush air compressor 10 bar 55kw scroll screw compressor

Product Name
Screw Air compressor
Model No.
Motor Power
Working Pressure
7/8/10/12 bar
Coling Method
Air Cooling
Free Air Delivery
328/317/300/278 m³/min
1800*1250*1670 mm
1480 kg

Our scroll compressors are apt for all kind of industrial use

Our designed scroll compressor operates by using two scrolls, one stationary and another orbiting around to create mechanical energy. Due to which the compressors are apt to be used in many different industries including food processing plants, breweries, chemical plants, natural gas pipelines, and more.

We provide a scroll compressor that can withstand high temperature

Agknx’s researchers and designers have redesigned the scroll compressors which have made them an effective solution to cool down your business with minimal noise pollution. The newly designed products also have the ability to work at higher temperatures than other types of compressors, meaning they’re perfect for industrial environments where high heat is common. So, using our scroll compressors will keep your company running smoothly no matter what you throw at it.

Oil-Free Scroll Air Compressor Systems

Innovative Multiplex Design that allows operating the exact number of compressors to match your demand with part-load efficiency.
Nearly silent operation using the quietest compression technology and fewer moving parts for a lower vibration and a healthy work environment.
Fewer components and less consumables for higher reliability resulting in longer life, less maintenance and longer service intervals.
Smaller footprint with a compact compressor and an aftercooler that provides sufficient cooling with a low temperature difference (CTD) to reduced air treatment equipment taking up less floor space.
Cool operation with the integral radial flow fan that creates built-in intercooling without the need for additional auxiliary fan help for a reliable operation.

High quality, energy efficient compressor choices
85% fewer moving parts over hermetic compressors, significantly reducing failure
9-24% reduction in energy consumption, lowering costs
Enhanced performance & durability over hermetic compressors

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When efficiency, quiet operation, low maintenance and a small footprint are critical, Scroll Air Compressors are the smart choice. Their compact and innovative design make them ideal for many commercial applications where reliable oil-free air is required. Our Scroll Compressors deliver more flow per kW in most cases and reach pressures up to 145 psi in a single stage of compression with no metal to metal contact anywhere – therefore the technology requires no lubrication resulting in high quality oil-free air.

Efficiency. Durability. Performance. Reliability
Two proven choices for supply chain continuity
Approved for new high glide refrigerants: R-407A/C, R-448A, R-449A
Easy “drop-in” replacement on both models
Standard two year warranty on EP scroll models
Standard one year warranty on Copeland scroll models
Extended warranty available for both models
Excellent “after-sale” support from dedicated representatives

How a scroll compressors work

A scroll compressor actually consists of two scrolls or spirals. One scroll is moving, whereas the second one is fixed (attached to the compressor body). The first scroll orbits (rotates) in a path defined by its mating fixed scroll. The orbiting scroll is connected to the compressor’s crankshaft.As a result of the scroll’s movement, gas pockets are formed between the two scrolls. At the outer part of the scrolls, the pockets suck in gas and then move towards the center of the scroll, where the compressed gas is discharged. As the gas moves into the continuously smaller internal pockets, both its temperature and pressure are increased. Thus a desirable discharge pressure is achieved by the motion of the compressor scrolls.

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Figure 1 – Diagram showing how a scroll compressor works

Structure of a scroll type compressor

Scroll compressors are fully hermetic (enclosed in the compressor’s shell, which is usually a cylindrical welded steel shell). Majority of scroll compressors used in refrigeration and HVAC services are of vertical orientation, with the scroll sets typically installed on the upper part of the motor shaft.

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Figure 2 – Typical scroll compressor diagram

Using valves in a scroll compressor

Normally, suction or discharge valves are not used in these compressors. But dynamic discharge valves are preferred at the compressor discharge, when operating at high differential pressure values. In such scenarios, having a dynamic valve at the discharge increased the efficiency of operating the compressor. For example, scroll compressors operate at high differential pressure, in case of refrigeration applications. In such cases dynamic discharge valves are preferred.

But in other cases, for example – air conditioning, having a discharge valve actually results in pressure losses, reducing the efficiency. Hence these are normally not preferred.


Scroll type compressors are inherently more efficient compared to other types of compressors for many reasons:

  • The absence of pistons for gas compression enables scroll compressors to reach 100% volumetric efficiency, leading to reduced energy costs.
  • Re-expansion losses, a typical feature of each piston stroke encountered in reciprocating models, are eliminated. In addition, valve (ports) losses are eliminated, since suction and discharge valves (ports) do not exist.
  • Furthermore, due to the absence of several moving parts, scroll compressors are considerably quieter in operation compared to other types of compressors, like for example reciprocating type ones. Scroll compressors typically make 5 to 15 dBA lower noise than other compressor types.
  • Due to lower vibration and noise, they do not need spring suspensions.
  • Fewer moving parts, lower vibrations and less friction also means that these compressors are more durable.
  • Their weight and footprint are considerably smaller compared to other bulkier types of compressors in use nowadays.
  • Gas pulsation is also minimized, if not eliminated and consequently, they can operate with less vibration.


  • Being fully hermetic, perhaps the biggest disadvantage of scroll compressors is that they are generally not easily repairable. They cannot be disassembled for maintenance.
  • Many reciprocating compressors are tolerant on rotating in both directions. This is usually not the case for scroll compressors.
  • Incremental capacity control on systems with several scroll compressors has proven several times to be problematic as well.


Since their introduction, scroll compressors have been successfully used in applications involving food and fruit refrigeration, truck transportation, vacuum pumps, marine containers as well as residential and small to medium scale commercial air-conditioning applications.

Selecting a scroll compressor

When selecting a compressor you can either go for single phase or 3-phase motor for the compressor. It will completely depend on what kind of electricity connection is available. Normally, single phase connections are available. If 3 phase connection is available, then the three phase motor is considerably more efficient.

Next, you should consider the differential pressure and flowrate parameters. There are different scroll compressors available in the market, having different combinations of differential pressure and flowrate values. You should select the one which covers your requirements of certain minimum differential pressure at given flow rate.

Next, you can look at secondary parameters like the noise level etc. depending upon where the compressor is going to be used. If it is going to be used in a residential air conditioner, you will prefer to use a model with lower noise levels.

Technical parameters for CMW series Oil-free scroll air compressor

Model Motor power Working pressure FAD Noise Connection N.W. Dimension
KW HP Mpa L/min dB(A) inch kg mm
CMW2.2-0.8 2.2 3 0.2-0.8 255 49±3 1/2″ 132 670*630*945
CMW3.7-0.8 3.7 5 0.2-0.8 415 52±3 1/2″ 150 720*680*1050
CMW4.4-0.8 2.2*2 6 0.2-0.8 510 52±3 1/2″ 150 800*650*1020
CMW7.4-0.8 3.7*2 10 0.2-0.8 830 55±3 1″ 185 880*720*1120
CMW11-0.8 3.7*3 15 0.2-0.8 1245 58±3 1″ 300 1450*900*1150
CMW15-0.8 3.7*4 20 0.2-0.8 1660 61±3 1″ 350 1450*900*1150
CMW2.2-1.0 2.2 3 0.2-1.0 215 49±3 1/2″ 132 670*630*945
CMW4.5-1.0 4.5 6 0.2-1.0 410 52±3 1/2″ 150 720*680*1050
CMW4.4-1.0 2.2*2 6 0.2-1.0 430 52±3 1/2″ 150 800*650*1020
CMW9-1.0 4.5*2 12 0.2-1.0 820 58±3 1″ 185 880*720*1120
CMW13.5-1.0 4.5*3 18 0.2-1.0 1230 61±3 1″ 300 1450*900*1150
CMW18-1.0 4.5*4 25 0.2-1.0 1640 61±3 1″ 350 1450*900*1150
CMW3.0-1.2 3 5 0.2-1.2 210 49±3 1/2″ 135 670*630*945
CMW4.2-1.2 4.5 6 0.2-1.2 360 52±3 1/2″ 150 720*680*1050
CMW6.0-1.2 3*2 8 0.2-1.2 420 52±3 1/2″ 150 800*650*1020
CMW9-1.2 4.5*2 12 0.2-1.2 720 58±3 1″ 185 880*720*1120
CMW13.5-1.2 4.5*3 18 0.2-1.2 1080 61±3 1″ 300 1450*900*1150
CMW18-1.2 4.5*4 25 0.2-1.2 1440 61±3 1″ 350 1450*900*1150
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Achieve your goals

Company Concept

Company adhering to the management objective of quality first, prestige supreme.

Strong Technical Force

Strong technical force, superior to similar products in Japan and Germany, please refer to vacuum pump comparison for more detailed information. Advanced production and testing equipment, strict implementation of ISO9001 quality management system, products have obtained CE certification, and the ep series have passed US authoritative testing and certification

24/7 Customer Support

24×7 service support is one of the best services in the company. 24×7 service support providing quality services at anytime, anywhere in the world.

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More versatile

The scroll compressors we produce can be used for both low-temperature and high-temperature applications, making them an excellent choice for many different industries. They can also work with a wide range of fluids, including water, oil, air or gas. This makes them versatile enough to meet your needs no matter what they may be.

Reliable and lasting

The compressor we deliver is reliable and will last years without breaking down. Moreover, keeping up the quality is our topmost priority and to maintain we offer top-notch products at competitive prices.

Features of our oil-free scroll air compressor

  1. The robust motor can provide high-quality work.
  2. The high precision and proficient design can serve for a longer time.
  3. Improved compressor efficiency due to the use of permanent magnet motor.
  4. Smooth functioning, minimum vibration and noise.
  5. The motor is directly connected with air-end
  6. It doesn’t require extra adjustments
  7. PLC controller display discharge temperature, operation time, pressure, fault alarm, maintenance remain time, etc

Our range of products also includes:

If you desire to be at the forefront of this revolutionary new technology, then, Agknx is your best bet. We offer a wide variety of models that will not only suit any application but also your budget. Even if you lack knowledge and information then don’t worry! We put together the pages with all the information you may need and our specialists are always there to guide you in finding the perfect fit for your application.

To reach us an email at [email protected] Find more about us by visiting our website


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