... Top class imported linear slide ways ;9 All Y axis drive motor backward located ;OPTIONAL:1 Spindle speed optional choices: 10000rpm, ... 12000rpm, 15000rpm ;2 Direct drive structure for main motor with spindle ;3 Central oil coolant for the spindle ... Spec.40084010Z axis Ball Screw Spec.40084010X,Y & Z Motor ConnectionDirect driveDirect driveMain motors recommended 5.5-7.5Kw7.5 ...