Frick rotary screw compressor units are available in five high efficiency models. Some of the salient features of this compressor include: compact, vibration-free frick rotary screw compressor packages are designed for all industrial refrigeration and air-conditioning requirements. These screw compressors can run for almost all gases like r-717, r-22, r-134a etc. For other gas applications custom-built packages can be offered. Wide range of applications of this compressor: marine, breweries, food and beverages, air-conditioning, fisheries, etc. Features: dual capacity control system; variable volume ratio control; plc based automation; flexible operation parameters; highly energy efficient; low maintenance; efficient oil separation system; and ideal for large plants with varying fluctuating temperatures. The rotors are from low carbon steel forgings to the exacting tolerance of the latest "n" profile manufactured by renowned company of u.K., holroyd by using latest technology. The four lobed male rotor is directly connected to the driver. The six lobed female rotor is driven by the male rotor on a thin oil film. The range of the models include: capacity ranges from 255 cfm [432 m²/h] at 2950 rpm. Standard units are constructed for use on ammonia, halocarbon and hydrocarbon refrigerants at pressure ratios up to 26:1.