1, piston rings and packing filler apparatus piston oil-free air compressor oil-free air compressors are used to fill the cylinder with a self-lubricating properties of PTFE as a sealing element. Therefore, the injection cylinder and packing equipment without lubricating, under normal circumstances, after essentially pure compressed gas free of oil, without increasing the oil cleaning device. The disadvantage is that the machine motor power is too large, the discharge pressure is not stable enough, the exhaust temperature is high, the noise is too large, maintenance workload, high maintenance costs. 2, screw-type air compressor screw air compressors yin, yang and precision with the rotor and the rotor body shell gas recirculation reduces leakage and improve efficiency; only intermeshing rotors, no cylinder reciprocating motion, reducing the vibration and noise sources. Unique lubrication has the advantage by virtue of the pressure difference generated itself, to keep the compression chamber and bearing coolant injection, simplifying complex mechanical structure; injection cooling fluid can form a liquid film between the rotor screw compressor manufacturer Vice rotor can be directly driven by the main rotor, without the help of high-precision timing gears; injecting coolant can increase the role of airtight to reduce noise generated due to high frequency compression, but also absorb a lot of heat of compression Air machine manufacturers Which is good, therefore, a single-stage compression ratio even up to 16 also allows the exhaust gas temperature will not be too high, not because of different thermal expansion coefficients of friction generated between the rotor and housing. Therefore, screw-type air compressor has vibration, without using anchor bolts on the foundation, motor power, low noise, high efficiency, the exhaust pressure is stable, and no wearing parts and so on. The disadvantage is that the aircraft out of the air compressed by the oil, the oil content of 1 ~ 3 × 10-6, the oil content of the compressed air demanding processes need to increase oil removal equipment. The plant's compressed air system has increased by two oil cleaning device. Since the compressed air ADC step ADC foaming agent in direct contact with the product, so the air quality requirements more high, ADC process gas increased by three oil cleaning device 4. Ultra-high temperature ultra-high temperature exhaust vent will cause the piston ring being attracted, resulting in displacement of lower r. Just reducing the temperature of oil-free compressor manufacturer, we can solve the problem. Here we note two things: (1) Environmental temperature is not high, usually no more than 40 ℃. (2) If the valve leakage, high temperature exhaust gas will return to the cylinder. At this time we should be careful to check the valve, grinding disc or replace the valve, remove air leaks, it was possible to solve the problem of too high temperature. 2, the mechanical causes "crash" mechanical reasons: link broken, jammed piston assembly clearance between the piston and the cylinder is too large, too small and so on. Link broken and overloaded most relevant compressor manufacturer, overloading should be avoided in order to avoid breaking the connecting rod. Meanwhile, the response of the cylinder and piston assembly clearance and lubrication attention. Qin Wei Air (Figure) | compressor manufacturers offer | Jinan compressor manufacturer is provided by Compressor Co., Ltd. Xianyang Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) to provide "air compressor and accessories, general machinery parts," such as business, the company has "Wei Qin brand, Coatler card (C?te children)" and other brands. Focus on compression, separation equipment and other industries, have higher visibility in Xianyang. Welcomes inquiries, contact: Liu.