Main disadvantages of screw compressors
1. High cost: Since the rotor tooth surface of the screw compressor [2] is a space curved surface, it is necessary to use special tools to process on expensive special equipment, and the machining accuracy of the screw machine cylinder is also high.
2. Can not be used in ultra-high pressure applications: Due to the limitation of rotor stiffness and bearing life, the screw machine is only suitable for the low, medium and high pressure range, the exhaust pressure is generally not more than 10MPa, and the ultra high pressure is dominated by the reciprocator.
