1. Displacement: refers to air flow per unit time is. There are two general methods of identification, are rated displacement (no pressure maximum flow) and air traffic case in 4Bar (kg). Its units: m3 / h (cubic meters per hour), L / mim (liters per minute), CFM (cubic feet per minute). Conversion: m3 / h = 1000L / h = 1000 / 60L / min, 1C.FM≈1.7 m3 / h .. 2, pressure: After the compressor compressed air generated by the force. By industry regulations Silent oil free air compressor maximum pressure is 8 Bar (kg) working pressure should be less than or equal to 8 Bar (kg). Its units are: 8 Bar, kgf / cm2, kpa, Mpa, Psi .. Conversion:.. 1Bar≈kgf / cm2 (kg) = 100 kpa = 0.1 Mpa≈14.5 Psi. 3, Power: units W, KW, HP. Conversion: 1 HP = 750W = 0.75KW. 4, the voltage frequency: 220-240 / 110,50 / 60 or DC DC12V \ 24V \ 36V. 5, the motor speed: the unit is RPM (rev / min). 6, tank volume: units liter (L) and US gallons (Gal). Conversion 1Gal≈3.8 L. 7. Other parameters: the decibel dB (A), the weight of Kg, size cm. Inch in, in terms of 1 in = 25.4mm = 2.54cm screw compressor is a high speed rotating machinery, metal high-speed rotation process will inevitably produce friction, if not frozen oil screw compressor manufacturers in isolation friction parts, Iron will make direct contact with each other to wear, serious cause equipment scrapped inoperable. In addition, frozen oil also played a sealed, cooling, noise reduction and so on, so that the screw compressor refrigeration oil is indispensable aids. For the past used a piston-type compressors, refrigeration oil is daily consumables, consumed every day around several kilograms (depending on the size of the model). For screw machine, since the seal is good, in the machine cycle use, such as no leakage, loss less air compressor manufacturer leasing, therefore, the replacement cycle is longer. This calculation, even though the price is high, but compared to the piston, the cost is not very high. Frozen oil is commonly used in industrial machinery products compressor factory direct, less complicated process, raw materials, and therefore a lot of air compressor manufacturers, producers, and the resulting quality of the natural inevitable. Listed compressor coupled field sales team particularly, the source of more poor grasp compressor oil. General compressor equipment specify: To use the original compressor oil compressor oil manufacturers to provide all the adverse consequences if not in use due to the emergence of the original manufacturer of compressor oil. We in the repair process, have been found along with a host of incidents reported burned, the main reason is the use of poor quality due to compressor oil. Originally, in the maintenance period, the user to replace the service objects, secret service team contact with outside manufacturers, the oil changes less than six months, so that the host scrapped, causing the company to stop production over 20 days, a great loss. Qin Wei _ air compressor factory outlets Air (certified) _ Ji'an compressor manufacturers to provide the Compressor Co., Ltd. Xianyang Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) is Xianyang, compression, separation equipment leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qin Wei Pneumatic leadership with the staff warmly welcome all inquiries negotiations to create Qin Wei Pneumatic better future.