3M9390 Valve grinder is specially designed for automobile repairing factories and agricultural machinery repairing centres. It is compact and light weight, with simple construction and easy operation. It is necessary equipment for automobile repairing service. Model 3M9390 Max. grinding diameter Φ90 mm Range of grinding valve diameter Φ25-Φ90 mm Valve axle diameter Φ6-Φ16 mm Grinding angle 30°-60° Longitudinal slide travel of work head 110 mm Cross slide travel of wheel head 90 mm Spindle speed 180-300 r/min Wheel speed 4500 r/min Max. grinding depth 0.025 mm Overall dimensions (L x W x H) 630x410x500 mm Packing dimensions(L x W x H) 740x540x640 mm N.W/G.W 88/125 kg