B-Tohin has made heavy investment in introducing CNC, full-automatic digital control lathes, CMM and other advanced equipments to ensure superior quality. A complete set of advanced horizontal OKUMA CNC was introduced specially for the fine finish machining of blower cylinders and end-covers; a NC machine was imported from Japan Hitachi Seiki for the processing of blower parts; a Taiwan Dahlih-made CNC was equipped for machining the parts of middle and large size blowers; and several back-forth curve machining planers were introduced for solving the problem of shapers’ low precision. This kind of planer ranks among the advanced level in China which is specially designed for curve machining of blower rotors. In the beginning of 2015, through the co-operation with Test Lab of Shengyang Blower Research Institute (Blower Quality Inspection Center of Chinese Mechanical Industry), a brand-new blower performance test system was designed for us in accordance with the latest version of Roots Blower Industry Standard.
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