Products Description

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
Capacity Scope	Refrigeration capacity:144～1191 kW/153～1526.3kW/148～2636kW
Application	food processing, cold logistics, slaughter, aquaculture, chemical industry, and so on

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	-57.5	-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

Features of Screw compressor units

The latest contemporary technology
Large capacity and low noise
Super sealed
High reliability and high efficiency
Microcomputer controlled
Precisely circulation oil control

Our Advantages

Two-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

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 Compressor units are widely used in food refrigeration and freezing, dairy, ocean fisheries processing, cold chain, logistics, cold storage, chemical industry, polycrystalline silicon, electronics, aerospace, pharmaceuticals, coal, petroleum, etc. field.