Min. internal grinding diameter - 0.5 mm Max. internal grinding diameter - 20 mm Grinding depth - 100 mm Centre height - 60 mm Distance between centres - 150 mm Workpiece spindle speeds: - number (steps) - 3 from - 560 rpm up to - 1000 rpm Spindle hole - 12 mm Taper in spindle: - 12 W Grinding spindle speeds: - from - 90000 rpm up to - 120000 rpm Rotatable grinding spindle head (b-axis) - + 45 / - 45 ° Voltage 50 Hz3x - 380 Volt Machine's weight about - 250 kg Overall dimensions machine: - Length - 900 mm Width - 750 mm Height - 1300 mm Various accessories: - Automatic internal grinding support - AMI 25 Set of flanges - Set of collets - W 12 Lamp - Air spindle - Set of service tools -