Features: Model TQZ8560 valve seat boring machine is suitable for repairing the valve seat of automobiles, motorcycle, tractor and other engines. It also can be used to drilling and boring etc. The machine features are airfloating, vacuum clamping, high positing precision, easy operation. The machine is set with grinder for cutter and vacuum check device for workpiece. Moden technic, new design Air floating, air vacuum clamping, auto-centering, high, positing precision Straight and V valve seats 30°, 45°, 60°and multy-angle cutter Central operation, quick clamping Spindle frequency coverter, unstep speeds High quality surface, different clour paint Main specifications: ModelTQZ8560Spindle travel200 mmSpindle speeds30 750/1000rpmBoring rangeΦ14 Φ60 mmSpindle swing angle5°Spindle cross travel950 mmSpindle longitudinal travel35 mmBall seat move5 mmAngle of clamping device swing+50°; -45°Spindle motor power0.4KWAir supply0.6 0.7Mpa; 300L/minMax. size of cylinder cap for repairing1200x500x300mmMachine weight1050/1200kgOverall dimension1600x1050x2170mm