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Screw compressor units

Screw Compressor units which are high efficiency, energy-saving, and Intellectualized, used in food refrigeration and freezing, industry, etc
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Products Description

compressor screw

We have many kinds of Screw compressor units

Compressor Units Type Open Type single-stage Screw Compressor Unit
Open Type Dual-stage Screw Compressor Unit
Variable Inner Ratio Screw Compressor Unit
Dual-compressor two-stage Screw Unit
Semi-hermetic two-stage Screw Compressor Unit
and so on
Refrigerant Ammonia (R717),
Freon (R22 R744 R507A R404A R290 R1270)
Temperature -70~+20deg.C
Cooling Capacity 0~18000kw
Capacity Scope Theoretical Exhaust Volume: 624~4800m3/h
Refrigeration capacity:144~1191 kW/153~1526.3kW/148~2636kW
Application food processing, cold logistics, slaughter, aquaculture, chemical industry, and so on
Screw chiller unit

Design Features of Screw Refrigeration Compressor Unit

Refrigerant
R717
R22
Discharge pressure MPa
below 1.67
below 1.67
Corresponding saturated temperature °C
below 45
below 46
Suction pressure MPa
-0.615
-0.637
Corresponding evaporative temperature °C
-67.5
-57.5
Volume ratio adjustment
2.5~5.0 step-less adjustment
Energy level adjustment
10~100% step-less adjustment
Oil Temperature (ºC)
25~65 °C
  1. The latest contemporary technology

  2. Large capacity and low noise

  3. Super sealed

  4. High reliability and high efficiency

  5. Microcomputer controlled

  6. Precisely circulation oil control

Our Advantages

compressor screw unit

four-stage Screw Compressor Unit

1. The unit adopts a modular design, compact structure, reasonable layout, and reliable operation.

2. Circulation mode

incomplete cooling in the middle of two-stage compression and one-stage throttling, low-pressure stage with economizer

3. High Reliability

– Sliding bearing, long operating life
– Less wearing parts, smooth operation, suitable for long-term operation

4. High efficiency

– The exhaust temperature of the unit is low, high volumetric efficiency
– World’s leading screw compressor rotor profile, high efficiency
– Energy step-less adjustment
– Adopt a high-efficiency oil separator and high-efficiency oil cooler to ensure low oil consumption and high heat exchange
the efficiency of the unit

5. Intellectualized:

– Manual control and microcomputer automatic control
– The special microcomputer controller, strong control capability. And realize modulation and networking

Single-stage Screw Compressor Unit

Single-stage Screw Compressor Unit

1. Perfect structure and reliable performance

  • Compact dual-stage compressor, simplifies refrigeration systems, compatible with Bitzer/Mycom.

  • Easy-install, reliable imported mechanical seal for stable operation.

  • Advanced manufacturing for higher precision and efficiency.

  • Quiet, low-vibration, durable compressor with precise rotors.

  • Oil cooler with water or thermal siphon cooling.

2. High efficiency and energy saving

  • Efficient single-stage screw compressor with high COP at large pressure ratios

  • World-class rotor profile for screw compressors, ensuring high efficiency

  • Differential pressure oil supply for energy savings and enhanced oil pump reliability

  • Step-less adjustment for both high and low stages for efficient operation

  • Advanced oil separator ensuring ≤5ppm oil consumption, resulting in low fuel use

  • High precision suction and oil filters

3. Ultra low-temperature screw compressor unit

– Evaporative temperature is as low as -55 ℃

4. Intellectualized

– Automatic microcomputer control, run faster, more reliable, more powerful control, has achieved a modular, network, and also has a beautiful appearance, convenient operation, friendly interface, etc


Application of screw untis

Screw units are widely used in refrigeration, air conditioning and heat pump systems. They mainly consist of screw compressors, condensers, evaporators and control systems, etc. Their application fields include but are not limited to the following aspects: 

1. **Industrial Refrigeration**: Screw units are often used in large-scale industrial cooling systems, such as in food processing, chemical, and pharmaceutical industries, providing a stable low-temperature environment. 

2. **Commercial Air Conditioning**: In large commercial buildings, screw units are widely used in central air conditioning systems and can effectively meet the cooling and heating demands of large areas. 

3. **Heat Pump System**: Screw units can be used as heat pumps to provide heating and cooling functions, suitable for residential, commercial and industrial sites. 

4. **Cold Storage and Cold Chain Logistics**: In cold storage and cold chain logistics, screw units can maintain a low-temperature environment, ensuring the safe storage and transportation of perishable items such as food and medicine. 

5. **Data Center**: Data centers require stable temperature and humidity. Screw chiller units can provide efficient cooling solutions to ensure the normal operation of equipment. 

6. **Marine and Ship Applications**: On ships and offshore platforms, screw units are also employed in refrigeration and air conditioning systems, capable of withstanding harsh working conditions. 

7. **Energy-saving Renovation**: With the increasing awareness of energy conservation and environmental protection, screw units have also been widely applied in the renovation of existing refrigeration systems, which can improve the energy efficiency ratio and reduce energy consumption. 

Screw units, with their advantages of high efficiency, stability and simple maintenance, have become indispensable important equipment in modern refrigeration and air conditioning systems.


We would like to design suitable screw compressor units for you, please feel free to let us know your demand information.



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