... is composed of work table , crossbeam, column, vertical ram (spindle box), hydraulic unit, circular cooling system, helix chip conveyor, ... machine, the linear guide, ball screw, servo motor, driver, precision spindle, ZF reducer, towline, and so on electrical components of ... dia. 50mmMin. Thread cutting M12Hole taper of spindle BT50Max. torque of spindle(≤375r/min 560N.mSpindle rotation speed 120-4000r/ ...