· For new machine, energy saving 15%-20% compared with piston air compressor. After the wear of piston ring and cylinder body, energy saving 30%-40% compared with piston air compressor. The saved electric charges for 2 years operation equals to the machine's purchase cost.

· Box type design, no vibration, low noise, small.

· Isothermal compression, low exhaust temperature, low water ratio in compressed air.

Advantage is derived from Ever power outstanding host performance, the embodiment of the water lubrication host technology 
★"No need shaft seal ", the host will never leak. 
Under the condition of oil-free machine no using lubricating oil, no shaft seal can use for a long time. Thus HZPT invented the very ingenious, never contact, never use shaft seal design. Solve the world hurdles of the shaft seal that needs to be replaced periodically. Shaft seal life extension to infinite referred to as the "no shaft seal design". 
★Power consumption province, the same power gas production by more than 10%, save electricity directly by more than 10%n
The precondition of water lubrication oil-free machine technology is the volumetric efficiency of the host must achieve 95% above, that is to say, leakage must be less than 5%, zimmern master oil-free machine production technology and apply this production technology to micro-oil screw compressor, leakage of less than 4%, the efficiency is very high. 
★Resistance to high temperature, 55 ℃ environment, the highest temperature of unit continuous work does not exceed 92 ℃
zimmern micro-oil compressor oil leakage is less than 4%, the temperature is very low when unit heating, high temperature resistance. ★Low oil content < 2 PPM
zimmern highly efficient host only need a small amount of lubricating oil can have very good sealing effect, gas oil content is absolutely < 2 PPM, referred to as the " micro-oil screw compressor CMNA series micro-oil screw air compressor technology parameters