Internal thread grinding machine S7640

CNChydraulic

The machine is mainly used for grinding cylindrical，concial，Whitworth and circular internal threads。 【NC system configuration】 【Working accuracy】 1、Accuracy of cylindrical whitworth thread ground Pitch error(within6mm) adjacent pitch error 0.005mm at a length of25mm 0.008mm at a length of100mm 0.01mm 2、Roughness Ra0.4μm 3、Accuracy of cylindrical thread ground Limit lead deviation 0.006mm Accumulative error at a length of300mm 0.012mm 【Technical characteristics】 1、Driven by hydraulic，wheel dressing performs dressing automatically。The operator can shift between one-way or two-way grinding cycles。 2、The precision rolling bearings are used on the wheel spindle 3、A full-closed housing and an oil-mist extractor are provided with the machine 4、Work spindle is supported by the precision rolling bearings; its speed is stepless 5、The change gears can adjust the pitch to be ground 6、The whitworth thread or circular thread can be dressed with the help of changing different types of dressers