simultaneous machine for internal and external diameter or face grinding. the machine is provided with best quality components, produces with the highest accuracies and reduces the idle times to the minimum. produced for ......simultaneous machine for internal and external diameter or face grinding. the machine is provided with best quality components, produces with the highest accuracies and reduces the idle times to the minimum. produced for the grinding of gear parts, injection components and other machine parts. workpiece length (max) 250 mm work swing 300 mm workpiece weight (max) 70/170 kg x and z axis stroke internal grinding 220/400 mm x and z axis stroke external grinding 220/400 mm