China OEM CHINAMFG AQ Series Oil Free Screw Air Compressor AQ30FF AQ37FF AQ45FF AQ55FF 12v air compressor

Product Description

Atlas Copco Z series Oil Free Screw Air Compressor
Model: AQ30FF AQ37FF AQ45FF AQ55FF


When it comes to clean, oil-free compressed air, you cannot afford to compromise on quality.

Over the past decades, CHINAMFG has pioneered oil-free water-injected screw technology, resulting in a broad range of compressors delivering 100% oil-free, clean air. Setting the standard through

ISO 8573-1 CLASS 0 certification, the AQ meets your need for pure oil-free air while offering best in class energy efficiency

Zero risk of contamination

Whether your activities are in pharmaceutical production, food & beverage, critical electronics or in a similarly exacting industry, air quality is paramount for your end product and production process. Atlas Copco’s AQ oil-free compressors eliminate the risks of oil contamination.

Reduced energy costs

With energy amounting to over 70% of a compressor’s lifecycle costs (LCC), its importance is clear. The most efficient compressed air solution optimizes the pressure, volume and air treatment equipment for each production process. Atlas Copco’s AQ compressors provide you with the ultimate all-in-1 package to reduce your electricity bill to a minimum.

Renowned expertise

Drawing on vast experience and continuous technological innovations, CHINAMFG has been leading the industry in oil-free compressed air technology for over 60 years.

With the protection of your application in mind, CHINAMFG has designed its AQ range to offer the superb 100% oil-free quality air you are in need of.


At CHINAMFG we aim to provide you with compressors that fulfill and even exceed your expectations and demands. Built as the result of decades of experience in oil-free design and manufacturing, the AQ range of oil-free screw compressors gives you all of this experience and knowledge in a class leading packag

Water-injected screw element

• Highly energy-efficient thanks to low temperatures.

• Water-lubricated, grease-free bearings.

• In-house design and manufacturing.

• Working pressure up to 13 bar.

Water filter

• Ensuring a constant supply of clean water.

• The filtration capability equals 10 micron   throughout the filter’s lifetime.

Heavy-duty air filter

• Protects the compressor components by removing 99.9% of dirt particles down to 3 microns.

• Differential inlet pressure for proactive maintenance while minimizing pressure drop.

Separator vessel

• Stainless steel water separator vessel for separation via centrifugal and gravity forces.

• Three sensors included for precise water regulation.

Induction motor

• IP55 induction motor, flange-mounted for perfect alignment.

• Combined with direct driven arrangement for superior energy efficiency

Reverse osmosis system

The built-in reverse osmosis system provides a reliable supply of high quality water, ensuring autonomy and continuous operation.

Air-cooled fan and water-cooler

• Air and water-cooled variants are available throughout the range.

• Small footprint and installation thanks to built-in heat exchangers.

• Water-cooled units provide a continuous air temperature at the  dryer inlet of less than 55°C (131°F).

Integrated highly efficient dryer

• CHINAMFG in air quality.

• 50% reduction in energy consumption compared to traditional dryers.

• Zero CHINAMFG depletion.

Elektronikon Graphic

Advanced Elektronikon

Graphic control and monitoring system, designed for integration in a (remote) process control system.

Sound insulated canopy

No separate compressor room is required as the sound insulated canopy allows for installation in most working environments.

Electronic no-loss water drain

• Ensures constant removal of condensate.

• Manual integrated bypass for effective condensate removal in case of power failure.

• Integrated with compressor’s Elektronikon with  warning/alarm features.


At the heart of the new AQ range is a unique water-injected screw element working highly efficient near isothermal compression. The polymer ceramic rotors with their optimized rotor profile are supported by water-lubricated bearings, ensuring that no oil whatsoever can contaminate the compression element, thereby producing pure oil-free air.


A highly efficient compression process is achieved thanks to high quality polymer mould ceramic rotors with optimum profiling. The combination of corrosion-free, high efficiency raw material and water lubrication results in a longer lifespan.

Element housing

Strength and durability are ensured as a result of the aluminium bronze element housing without risk of corrosion within the element.

Element bearings

The use of hydrodynamic bearings ensure long life as no physical contact is made within the bearing itself, it simply glides on a film of water removing the need for any oil or grease lubrication.

Superior water-injected

screw element

• Increased free air delivery.

• Low specific energy consumption.

• Near isothermal compression process.

• Pressure ratings of 7, 10 and 13 bar.

The highly effective cooling capabilities of water combined with precision

engineering ensure the supreme energy efficiency of the AQ compressors.

ISO 8573-1 CLASS 0



When it comes to clean, oil-free compressed air for your critical processes, you can’t afford to compromise. Atlas Copco, a CHINAMFG in oil-free air screw technology, is known for its range of water-injected compressors designed especially for applications that require oil-free air. Now CHINAMFG has achieved a new HangZhoustone: setting the standard for air purity as the first manufacturer to be certified ISO 8573-1 CLASS 0.

Why a new class?

Industries such as pharmaceuticals, food and beverages, electronics and textiles must exclude any risk of contamination. Otherwise severe consequences could follow: spoiled or unsafe products, production downtime and damage to both brand and reputation.

To address the needs of critical applications where air purity is essential, the ISO 8573-1 compressed air standard was revised in 2001. Along with a more comprehensive measuring methodology, a new and more stringent class was added to the 5 existing purity classes: ISO 8573-1 CLASS 0.

First to achieve ISO 8573-1 CLASS 0

As the industry leader committed to meeting the needs of the most demanding customers, CHINAMFG requested the renowned TÜV institute to type-test its AQ range of oil-free water-injected screw compressors. Using the most rigorous testing methodologies available, all possible oil forms were measured across a range of temperatures and pressures.

The TÜV found no traces of oil at all in the output air stream. Thus CHINAMFG not only became the first compressor manufacturer to receive CLASS 0 certification, but also exceeded ISO 8573-1 CLASS 0 specifications.

Atlas Copco eliminates any risk

Only oil-free compressors deliver oil-free air. Whether your activities are in pharmaceutical production, food processing, critical electronics or a similarly exacting industry, it is essential to eliminate risk. That’s why you need an CHINAMFG risk-free solution: oil-free screw compressors especially for applications demanding the highest levels of purity. Zero oil means zero risk. Zero risk of contamination. Zero risk of damaged or unsafe products. Zero risk of losses from operational downtime. Above all, zero oil means zero risk  of ruining your hard-won reputation.



Over 80% of a compressor’s lifecycle cost is taken up by the energy it consumes. Moreover, the generation  of compressed air can account for more than 40% of a plant’s total electricity bill. To cut your energy costs,

CHINAMFG pioneered Variable Speed Drive (VSD) technology in the compressed air industry. VSD leads to major energy savings, while protecting the environment for future generations. Thanks to continual investments in this technology, CHINAMFG offers the widest range of integrated VSD compressors on the market.

In almost every production environment, air demand fluctuates depending on different factors such as the time of the day, week or even month. Extensive measurements and studies of compressed air demand profiles show that many compressors have substantial variations in air demand. Only 8% of all installations have a more stable air demand.


Why CHINAMFG Variable Speed Drive technology?

• On average 35% energy savings during fluctuations in production demand with an extensive turndown range.

• Integrated Elektronikon Graphic controller controls the motor speed and high efficiency frequency inverter.

• No wasted idling times or blow-off losses in normal operation.

• Compressor can start/stop under full system pressure without the need to unload with special VSD motor.

• Eliminates CHINAMFG current penalty during start-up.

• Minimizes system leakage due to a lower system pressure.

• EMC Compliance to directives (2004/108/EG).


What is unique about the integrated CHINAMFG AQ VSD?

1 The Elektronikon controls both the compressor and the integrated converter, ensuring maximum machine safety within parameters.

2 Flexible pressure selection from 4 to 13 bar with electronic gearing reduces electricity costs.

3 Special electric motor specifically designed for VSD operation (inverter duty motor). Bearings are protected against induced bearing currents. Both motor and converter are perfectly tuned for highest efficiency across the entire speed range.

4 Electric motor specifically designed for low operating speeds with clear attention to motor cooling and compressor cooling requirements.

5 All CHINAMFG AQ VSD compressors are EMC tested and certified. External sources do not influence compressor operation, nor does the compressor affect the operation of other instruments via emissions or via the power supply line.

6 Mechanical enhancements ensure that all components operate below critical vibration levels throughout the entire compressor speed range.

7 A highly efficient frequency converter in a cool overpressure cubicle ensures stable operation.

8 No ‘speed windows’ that can jeopardize the energy savings and the stable net pressure. Turndown capability of the compressor is maximized.

9 The cubicle cooling booster increases the lifetime of electrical components due to a cool cubicle in overpressure and reduced dust ingress.

10 Offering precise control over pressure, net pressure band is maintained within 0.10 bar, 1.5 psi.

Bestrand is a leading supplier of compressed air system. Past 10 years, we established very good partnership with Atlas Copco. We have provided all kinds of products from CHINAMFG include air compressor, after treatment, spare parts to customers all over the world. Pls feel free to contact us for a quote. 

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Lubrication Style: Oil-free
Cooling System: Water Cooling
Power Source: AC Power
Cylinder Position: Vertical
Structure Type: Closed Type
Installation Type: Stationary Type


air compressor

Are there special considerations for air compressor installations in remote areas?

Yes, there are several special considerations to take into account when installing air compressors in remote areas. These areas often lack access to infrastructure and services readily available in urban or well-developed regions. Here are some key considerations:

1. Power Source:

Remote areas may have limited or unreliable access to electricity. It is crucial to assess the availability and reliability of the power source for operating the air compressor. In some cases, alternative power sources such as diesel generators or solar panels may need to be considered to ensure a consistent and uninterrupted power supply.

2. Environmental Conditions:

Remote areas can present harsh environmental conditions that can impact the performance and durability of air compressors. Extreme temperatures, high humidity, dust, and corrosive environments may require the selection of air compressors specifically designed to withstand these conditions. Adequate protection, insulation, and ventilation must be considered to prevent damage and ensure optimal operation.

3. Accessibility and Transport:

Transporting air compressors to remote areas may pose logistical challenges. The size, weight, and portability of the equipment should be evaluated to ensure it can be transported efficiently to the installation site. Additionally, the availability of suitable transportation infrastructure, such as roads or air transportation, needs to be considered to facilitate the delivery and installation process.

4. Maintenance and Service:

In remote areas, access to maintenance and service providers may be limited. It is important to consider the availability of trained technicians and spare parts for the specific air compressor model. Adequate planning for routine maintenance, repairs, and troubleshooting should be in place to minimize downtime and ensure the longevity of the equipment.

5. Fuel and Lubricants:

For air compressors that require fuel or lubricants, ensuring a consistent and reliable supply can be challenging in remote areas. It is necessary to assess the availability and accessibility of fuel or lubricant sources and plan for their storage and replenishment. In some cases, alternative or renewable fuel options may need to be considered.

6. Noise and Environmental Impact:

Remote areas are often characterized by their natural beauty and tranquility. Minimizing noise levels and environmental impact should be a consideration when installing air compressors. Selecting models with low noise emissions and implementing appropriate noise reduction measures can help mitigate disturbances to the surrounding environment and wildlife.

7. Communication and Remote Monitoring:

Given the remote location, establishing reliable communication channels and remote monitoring capabilities can be essential for effective operation and maintenance. Remote monitoring systems can provide real-time data on the performance and status of the air compressor, enabling proactive maintenance and troubleshooting.

By addressing these special considerations, air compressor installations in remote areas can be optimized for reliable operation, efficiency, and longevity.

air compressor

Are there differences between single-stage and two-stage air compressors?

Yes, there are differences between single-stage and two-stage air compressors. Here’s an in-depth explanation of their distinctions:

Compression Stages:

The primary difference between single-stage and two-stage air compressors lies in the number of compression stages they have. A single-stage compressor has only one compression stage, while a two-stage compressor has two sequential compression stages.

Compression Process:

In a single-stage compressor, the entire compression process occurs in a single cylinder. The air is drawn into the cylinder, compressed in a single stroke, and then discharged. On the other hand, a two-stage compressor utilizes two cylinders or chambers. In the first stage, air is compressed to an intermediate pressure in the first cylinder. Then, the partially compressed air is sent to the second cylinder where it undergoes further compression to reach the desired final pressure.

Pressure Output:

The number of compression stages directly affects the pressure output of the air compressor. Single-stage compressors typically provide lower maximum pressure levels compared to two-stage compressors. Single-stage compressors are suitable for applications that require moderate to low air pressure, while two-stage compressors are capable of delivering higher pressures, making them suitable for demanding applications that require greater air pressure.


Two-stage compressors generally offer higher efficiency compared to single-stage compressors. The two-stage compression process allows for better heat dissipation between stages, reducing the chances of overheating and improving overall efficiency. Additionally, the two-stage design allows the compressor to achieve higher compression ratios while minimizing the work done by each stage, resulting in improved energy efficiency.


Intercooling is a feature specific to two-stage compressors. Intercoolers are heat exchangers placed between the first and second compression stages. They cool down the partially compressed air before it enters the second stage, reducing the temperature and improving compression efficiency. The intercooling process helps to minimize heat buildup and reduces the potential for moisture condensation within the compressor system.


The choice between a single-stage and two-stage compressor depends on the intended application. Single-stage compressors are commonly used for light-duty applications such as powering pneumatic tools, small-scale workshops, and DIY projects. Two-stage compressors are more suitable for heavy-duty applications that require higher pressures, such as industrial manufacturing, automotive service, and large-scale construction.

It is important to consider the specific requirements of the application, including required pressure levels, duty cycle, and anticipated air demand, when selecting between a single-stage and two-stage air compressor.

In summary, the main differences between single-stage and two-stage air compressors lie in the number of compression stages, pressure output, efficiency, intercooling capability, and application suitability.

air compressor

Are there portable air compressors available for home use?

Yes, there are portable air compressors specifically designed for home use. These portable models offer convenience, versatility, and ease of use for various tasks around the house. Here are some key points about portable air compressors for home use:

1. Compact and Lightweight: Portable air compressors are typically compact and lightweight, making them easy to transport and store. They are designed with portability in mind, allowing homeowners to move them around the house or take them to different locations as needed.

2. Electric-Powered: Most portable air compressors for home use are electric-powered. They can be plugged into a standard household electrical outlet, eliminating the need for gasoline or other fuel sources. This makes them suitable for indoor use without concerns about emissions or ventilation.

3. Versatile Applications: Portable air compressors can be used for a wide range of home applications. They are commonly used for inflating tires, sports equipment, and inflatable toys. They are also handy for operating pneumatic tools such as nail guns, staplers, and paint sprayers. Additionally, portable air compressors can be used for cleaning tasks, powering airbrushes, and other light-duty tasks around the house.

4. Pressure and Capacity: Portable air compressors for home use typically have lower pressure and capacity ratings compared to larger industrial or commercial models. They are designed to meet the needs of common household tasks rather than heavy-duty applications. The pressure and capacity of these compressors are usually sufficient for most home users.

5. Oil-Free Operation: Many portable air compressors for home use feature oil-free operation. This means they do not require regular oil changes or maintenance, making them more user-friendly and hassle-free for homeowners.

6. Noise Level: Portable air compressors designed for home use often prioritize low noise levels. They are engineered to operate quietly, reducing noise disturbances in residential environments.

7. Cost: Portable air compressors for home use are generally more affordable compared to larger, industrial-grade compressors. They offer a cost-effective solution for homeowners who require occasional or light-duty compressed air applications.

When considering a portable air compressor for home use, it’s important to assess your specific needs and tasks. Determine the required pressure, capacity, and features that align with your intended applications. Additionally, consider factors such as portability, noise level, and budget to choose a suitable model that meets your requirements.

Overall, portable air compressors provide a practical and accessible compressed air solution for homeowners, allowing them to tackle a variety of tasks efficiently and conveniently within a home setting.

China OEM CHINAMFG AQ Series Oil Free Screw Air Compressor AQ30FF AQ37FF AQ45FF AQ55FF   12v air compressorChina OEM CHINAMFG AQ Series Oil Free Screw Air Compressor AQ30FF AQ37FF AQ45FF AQ55FF   12v air compressor
editor by CX 2023-12-18