Are currently on the air compressor using two-point control (upper and lower control) or the start and stop control (small air compressor), that is, when the compressed gas cylinder pressure reaches the set value limit, air compressor pressure by itself or hydraulic closing the intake valve, a small air compressor is shut down. When the pressure drops to the lower limit set value, the compressor inlet valve open, small air compressor is started again. Shanxi Qishan Compressor Rental Co., Ltd. specializes in the mountains brand, Ingersoll Rand, Sullair, Atlas, Fu Sheng, Hitachi, red rings and other domestic and international brands of air compressor, drill car rental companies, In addition the company also operates various brands of air compressors and drills used car recycling and sales. With all kinds of brands of air compressor with more than 600 drills for leasing as well as more than 1,000 second-hand air compressor and drill car sales. Screw compressor can not start: the possibility of causing this problem more parity, but usually experienced engineers from the following aspects to consider: an old air compressor market, the fuse is burned out, this is a relatively common problem. Two relays to protect the machine lost effect. Three old air compressor sale price, the start button is bad, the problem is less common recycling old air compressor, screw air compressor because unless freeloaders really low price and buy the machine, otherwise generally not will be such a problem of old air compressor, even appeared also solved. Fourth, screw air compressor supply voltage is too low. Fifth, the machine motor is a problem, which is more complicated, the probability of such problems are generally relatively strong technical strength compressor manufacturers appear relatively low. Which sell old air compressor air compressor _ Qishan (certified) _ Changchun old air compressor air compressor provided by the Shanxi Kisan Leasing Limited. Shanxi Kisan Compressor Rental Co. (www.qskyjzl.com) (www.qskyjzl.com) is Taiyuan, compression, separation equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , and satisfy customer needs. In Qishan compressor leadership with the staff warmly welcome all inquiries negotiations to create Qishan compressor a better future. You can also access (www.qskyjzl.com/supply_details_42991830.html), for more information about the company.