China Custom Reciprocating CHINAMFG Carrier Semi Hermetic Refrigeration Compressor air compressor portable

Product Description

Advantages for our condensing unit 
1. The accessories for the unit include liquid receiver, pressure gage, pressure controller, sight glass, filter junction box, etc.


2. The copper tube of air cooled Condensing units get through the 2.6Mpa pressure test, meet the request of normal work. 
3.Every part of units is best in corrosion protection.


4. Air cooled condensing unit refrigerating capacity ranks from 0.2KW to 29KW. evaporating temperature:-45ºC-+15°C, run steady under the ambient temperature +43ºC.

5. Proper structure, accurate and reliable operating system for the air cooled condensing unit. 6. Use the high efficiency and large air volume axial fan, with low noise and energy saving.

ApplicationHotels, hospitals, blood banks, poultry slaughter and processing, CHINAMFG and processing, mushroom cultivation, 
agricultural product processing, dairy production, pharmaceutical processing and logistics, beverage production and processing, 
beer production and cooling, large-scale logistics storage, chemical product cooling, leather manufacturing, injection molding, 
machine cooling, steel cooling, ommunication equipment, ship manufacturing and more.

Suitable Temperature for Various Products
Temperature Condensing Unit Type Suitable Products
-5°C ~ +5°C Single stage piston/scroll/
screw compressor condensing unit
Vegetables, Fruit, Drink,
Beer, Medicines, Vaccine…
-15°C ~ -25°C Single stage piston/scroll/
screw compressor condensing unit
Meat, Fish, Medicines,
Seafoods, Ice Cream…
-30°C ~ -40°C 2-stage piston/screw 
compressor condensing unit
Meat, Fish, Blood…
-45°C ~ -70°C Cascade condensing unit Tuna, Vaccine…

Product Specifications

1 Product name Stainless Steel Brazed Plate Heat Exchanger
2 Refrigerant R22,R407etc.
3 Voltage AC220v/380v/customized ,50Hz/60Hz
4 cold room temperature -25~45ºC
5 Range of evaporating temperature -30~50ºC
6 Warranty 1 Year
7 Composition Compressor, crankcase heater, oil pressure safety switch, air-cooled condenser, receiving tank, drier-filter, meter panel,
pressure controller, refrigeration oil, protection gas, double stage compressor with intermediate cooler

1. Why do we insist original new compressor?
Only original brand new compressor can have the best quality & high efficiency. So you save money on electric bill and maintenance cost.

2. Why same HP compressors have big price difference?
Even same horse power compressor condensing unit, the compressor have different designs, so the cooling capacities are different. Also their condensers are different. So cooling capacity bigger, price higher.

3. Can refrigeration units be customized?
Yes. We have experienced technicians and professional team can help customization. But we have many models for you to choose, better choose them because the delivery time is much shorter.

4. How many kinds of compressors?
Semi-hermetic(ECOLINE series),Two stages semi-hermetic, Semi-hermetic screw compressor, Hermetic screw compressor.
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After-sales Service: 1 Year
Warranty: 3-5 Year
Principle: Mixed-Flow Compressor
US$ 200/Piece
1 Piece(Min.Order)


Order Sample



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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Is the Noise Level of Screw Compressors?

The noise level of screw compressors can vary depending on several factors, including the compressor’s size, design, operating conditions, and the presence of noise-reducing features. Here’s a detailed explanation:

Screw compressors are known for their relatively low noise levels compared to other types of compressors, such as reciprocating compressors. However, the actual noise level can still vary depending on the specific compressor model and its operating parameters.

The noise level of screw compressors is typically measured in decibels (dB) and can range from around 60 dB to 90 dB or higher. It’s important to note that the noise level is logarithmic, meaning that a small increase in decibel level represents a significant increase in perceived noise intensity.

Several factors can influence the noise level of screw compressors:

  • 1. Compressor Size and Design: Larger screw compressors tend to produce higher noise levels compared to smaller ones. This is because larger compressors generally have more powerful motors and larger rotating components, which can generate more noise. The design of the compressor, including the type of rotor profiles and the presence of noise-reducing features, can also impact the noise level.
  • 2. Operating Conditions: The operating conditions of the compressor, such as the speed of rotation and the discharge pressure, can affect the noise level. Higher speeds and pressures may result in increased noise production. Additionally, the presence of pulsations or vibrations in the system can contribute to noise generation.
  • 3. Sound Insulation and Enclosures: Some screw compressors come with built-in sound insulation or enclosures to reduce noise levels. These features help contain the noise within the compressor unit and minimize the propagation of noise to the surrounding environment. Compressors equipped with sound insulation or enclosures generally have lower noise levels compared to open-frame compressors.
  • 4. Installation and Surrounding Environment: The installation of the compressor and the characteristics of the surrounding environment can influence the perceived noise level. Factors such as the proximity of the compressor to sensitive areas, the presence of sound-absorbing materials, and the layout of the facility can impact the noise propagation and overall noise perception.
  • 5. Maintenance and Wear: Proper maintenance of the compressor, including regular inspection and lubrication of components, can help minimize noise levels. Wear and tear on the compressor’s internal parts can lead to increased noise production, so timely repairs or component replacements are important to maintain optimal performance and minimize noise.

It’s worth noting that noise levels are typically provided by manufacturers as specifications for each compressor model. These specifications can help users select compressors with noise levels that meet their specific requirements or comply with local noise regulations.

In summary, the noise level of screw compressors can range from around 60 dB to 90 dB or higher, depending on factors such as compressor size, design, operating conditions, and the presence of noise-reducing features. Proper installation, maintenance, and the use of sound insulation or enclosures can help minimize noise levels and create a more comfortable and quieter operating environment.

air compressor

Can Screw Compressors Be Used for Medical Air Supply?

Yes, screw compressors can be used for medical air supply. Here’s a detailed explanation:

Screw compressors are commonly employed in various applications, including medical air supply systems. Medical air is a critical utility in healthcare facilities, used for various purposes such as respiratory therapy, anesthesia, and surgical tools. Here are some key points to consider:

1. Reliability and Efficiency:

Screw compressors are known for their reliability and efficiency. They can provide a continuous and reliable source of compressed air, ensuring a stable supply for medical applications. The rotary screw design allows for smooth and efficient compression, minimizing energy consumption and maximizing system performance.

2. Oil-Free Operation:

In medical applications, it is crucial to ensure the purity of the compressed air. Screw compressors can be designed and certified to provide oil-free air, eliminating the risk of oil contamination in the medical air supply. Oil-free screw compressors incorporate specialized sealing systems and filtration to prevent oil carryover, making them suitable for medical air applications.

3. Air Quality Standards:

Medical air must meet specific air quality standards to ensure patient safety and treatment effectiveness. Standards such as the European Pharmacopoeia (Ph. Eur.) or the United States Pharmacopeia (USP) define the required purity levels for medical air, including limits on particulate matter, moisture content, and microbial contamination. Screw compressors can be equipped with appropriate filtration and purification systems to meet these standards.

4. Integrated Drying and Filtration:

Some screw compressors designed for medical air applications incorporate integrated drying and filtration systems. These systems remove moisture and contaminants from the compressed air, ensuring it meets the required quality standards. Integrated drying systems can include refrigerated dryers, desiccant dryers, or membrane dryers, depending on the specific needs of the medical air supply system.

5. Redundancy and Backup Systems:

Medical air supply systems often require a high level of reliability and continuity. Screw compressors can be configured with redundancy and backup systems to ensure uninterrupted supply. Multiple compressors can be installed in parallel, with automatic switching mechanisms to maintain supply in case of a compressor failure or maintenance activities.

6. Monitoring and Alarms:

Modern screw compressors used in medical air supply systems often feature advanced monitoring capabilities. They can continuously monitor and record key parameters such as pressure, temperature, and system performance. Alarms and alerts can be configured to notify operators or maintenance personnel in case of abnormal conditions or potential issues with the compressor.

7. Compliance with Standards and Regulations:

When using screw compressors for medical air supply, it is essential to comply with relevant standards and regulations. These may include medical device regulations, electrical safety standards, and guidelines specific to medical gas systems. Compliance ensures that the medical air supply system meets the necessary safety and quality requirements.

In summary, screw compressors can be used for medical air supply, providing reliable and efficient compressed air for various medical applications. With their reliability, oil-free operation, adherence to air quality standards, integrated drying and filtration capabilities, and the ability to incorporate redundancy and monitoring features, screw compressors are well-suited for medical air supply systems in healthcare facilities.

air compressor

Can Screw Compressors Handle High-Pressure Applications?

Yes, screw compressors are capable of handling high-pressure applications. Here’s a detailed explanation:

Screw compressors are known for their ability to deliver high-pressure compressed air or gas. The design of screw compressors allows them to achieve higher pressure ratios compared to other types of compressors, such as reciprocating piston compressors.

The compression process in screw compressors is continuous and smooth, which enables them to handle high-pressure requirements efficiently. The intermeshing rotors create compression chambers that gradually reduce in volume, resulting in the compression of air or gas. By adjusting the rotational speed of the rotors and optimizing the design parameters, screw compressors can generate the desired high discharge pressures.

However, it’s important to note that the maximum pressure capability of a screw compressor may vary depending on factors such as:

  • 1. Compressor Design: The design features of the screw compressor, including the rotor profile, sealing mechanism, and cooling system, can influence its maximum pressure capacity.
  • 2. Rotor Size and Speed: The size and rotational speed of the rotors impact the compression ratio and, consequently, the achievable discharge pressure. Larger rotors and higher rotational speeds generally allow for higher pressure ratios.
  • 3. Drive Power: The power of the drive motor connected to the screw compressor affects its ability to handle high-pressure applications. Adequate power is necessary to overcome the resistance and maintain the desired compression ratio.
  • 4. Structural Integrity: The structural integrity and material strength of the compressor housing, rotors, and other components determine the maximum pressure that the compressor can withstand without failure or leakage.

It’s important to select a screw compressor with the appropriate specifications and consult the manufacturer’s guidelines to ensure that it can handle the specific high-pressure requirements of the application.

Additionally, it’s worth noting that high-pressure applications may also require additional equipment, such as pressure vessels or downstream pressure regulators, to safely handle and control the compressed air or gas at the desired pressure levels.

China Custom Reciprocating CHINAMFG Carrier Semi Hermetic Refrigeration Compressor   air compressor portableChina Custom Reciprocating CHINAMFG Carrier Semi Hermetic Refrigeration Compressor   air compressor portable
editor by CX 2024-02-17

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