GM drive system automatically adjusts the (patent number: 4413422) Thanks Berg patented GM drive system. All of its belt-driven screw compressors run at each stage are able to maintain a constant belt tension. At the same time for different weight force Qingdao micro motor oil-free screw compressors, starting torque, load torque caused by the automatic compensation. Your benefit: No maintenance work; from virtually eliminates belt slippage; without re-tensioning the belt; there is no danger of contamination. Cooling some of the advantages: The system will not be shut down residual heat buildup hot cooling air to rise, similar to the role of the chimney fan cooling air guide ring Qingdao oil-free screw compressors screw compressor _ _ Xingchang Air Compressor Qingdao Xingchang Machinery Limited. Qingdao Xingchang Pneumatic Machinery Co., Ltd. (www.xckyj.com) strong, credible, Shandong Qingdao industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xingchang Pneumatic Machinery and you hand into the brilliant, for a better future!