The features of screw compressor
As the worldwide fourth-generation high-performance advanced one, even-side assymmetric circular-arc-shaped balance-line rotor profile with sealing ruber, can ensure the high-quality airtight and reduce the clearance between rotors and casing, so as to promote compressors running liability. Processed by the HOLROYD special rotor-milling machine, the rotors can have the precisest dimension and the highest efficiency. For the female rotor and the male rotor have the same dimension, their max. velocity can be easy to reach the perfect. So, the shaft power is decreased, the rotor is easier to be processed and the efficiency of compressor is visibly increased. With the high utilitizing coefficient of even-side profile area and 1.65 of long lead, the unit displacement of compressor is increased and the running perfomance economy of compressor is also promoted. Whats more, we can offer the large-volume refrigeration units.
Selecting the origin-pakaged shaft seals imported from the U.K..Simple structure, easy to install. Surrounding by the lubricant all the way, the seals with outstanding sealing abilities, can support the compressor to continuously run over 40,000 hours.
Selecting the Swede-based SKF rolling bearing to bear the axial force, so as to ensure the precise oriantation of the rotors.With the long service term of 40,000 hours, the bearing can support the compressors to continously run. Selecting the sliding bearing to bear the radial force. With 20 years of service term and low noice, the bearing promotes the compressors liabilities.
Forcing to supply oil continously by oil pump. While lubricating the moving parts, the enough oil brings away a lot of heats, so as to keep the compression phase nearly at a contant termperature condition and promote the volumetric efficiency. Whats more, the exhausting temperature is greatly decreased, and oil films are formed in the clearances between the rotors, lobe top and casing, rotor end plane and seat, so as to minimize the inner leakage and ensure the high volumtric efficiency of compressor.
Application condition


Evaporating Temp.: +5-40℃
Condensing Temp.: not more than 40℃
Exhaust Temp.: not more than 105℃
Oil Temp.: 2565℃
Features of screw compressor units


Adopting the unique high-performance rotor profile, the higher efficiency can be reached;
Reasonable layout, small vibration, low noice and running stably;
Adopting the high-efficiency oil separator, the oil separating efficiency can be 10 PPM;
Adopting the imported oil pump, independent oil supplying system, and running more steadily;
Adopting the PLC fully-automatic controller, more economically running, and higher efficient;


Technic data