First, the curved face of the rotors engaged fully, thus contributing to the formation of a hydrodynamic lubrication film, reducing the contact zone of the lateral leakage, improve compressor efficiency; as well as to improve the processing, test performance of the rotor.
Second, using the design ideas of bigger rotor, bigger bearing, low-speed ", speed lower than other brands up to 30 ~ 50%, this could reduce noise and vibration, reducing the compressed air temperature and improve the rigidity of rotor and prolong its life, reduce sensitivity to the impurity and the oil carbide.
Third, fully meet or exceed the national standard GB19153-2003 "air compressors energy efficiency limit !
Fouth,Oil separation system
LGCD Direct-driven Screw compressor up to 760kW are equipped with external separators that can be changed in a simple spin-off/spin-on process. Larger units have an internal separator cartridge. Due to the excellent separation efficiency of the system as a whole, the compressors can be used in the pressure range of 5.0 to 15.0 bar. Special pressures on request.
The frequency converter minimises idle times and optimises supply with fluctuating compressed air requirements. Start-up peaks are avoided and the compressor’s delivery rate is controlled continuously – that saves electricity costs! The total costs for your compressed air supply are significantly reduced and investment costs are amortised in the shortest possible time.
75KW air cooling compressor parameters
|Free air delivery||m3/min||13.60||13.00||11.50||9.80|
|Max. working pressure||MPa||0.7||0.8||1.0||1.3|
|Compressor type||Oil inject screw compressor|
|Cooling type||Air cooling|
|Driven type||Direct driven|
|Residual oil content||ppm||≤2|
|Drive rotor speed||rpm||2970||2970||2970||2970|
|Compressed air outlet temperature||℃||Ambient temperature＋10|
|Cooling air flow||m3/hr||10200|
|Control mode||Intelligent controller|
|Safety valve set pressure||MPa||0.77||0.88||1.10||1.43|
|Lubricating oil volume||L||50|
|Lubricating oil brand||ROTORCOMP|
|Compressed air outlet connection||G2|
|Startup mode||ʏ-Δ starting|
|Voltage||V||380(Special on request)|
|Frequency||Hz||50(Special on request)|
|Weight of motor||kg||515|
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