low heat generation, low noise, low vibration main spindle structure with installation of synchronous build-in motor the best high speed, high precision feed drive system within the same class (direct connection structure......low heat generation, low noise, low vibration main spindle structure with installation of synchronous build-in motor the best high speed, high precision feed drive system within the same class (direct connection structure with special high accuracy coupling) adoption of oilless self lubricating method l/m guide and ball screw minimized heat deformation through standard adoption of high volume main spindle cooling device(5,400kcal/60hz) application of pantograph mechanism (y axis) slide cover with no noise during feed.