Min. internal grinding diameter: 5 mm. Max. internal grinding diameter: 200 mm. Grinding depth: 250 mm. Centre height: 180 mm. Distance between centres: 400 mm. Max.workpiece length + steady: 550 mm. Taper in spindle:: 25 W. from: t/min. up to: 12 m/min. Voltage 50 Hz 3x: 400 Volt. Machine's weight about: 2700 kg. Length: 2500 mm. Width: 1600 mm. Height: 2000 mm.