Super Finishing Special Purpose Machine

The tail stock has a motorized to and fro movement for rapid coarse movement. It also has a hand wheel operated fine quill movement for applying the required holding pressure on the job between the centers. The SPM has both auto & manual mode through a selector switch. VFD controlled 5 HP motor provides the rotational drive to the head stock spindle from 800 to 1,800 RPM in stepless range. The belt polishing unit has a manually operated cross verse traverse of 150 mm with provision for fine depth of cut setting through graduated collar in both the modes – belt polishing mode & buffing mode. The longitudinal axis movement of the belt polishing & buffing unit is through screw rodrack & pinion mechanism. An independent drive unit, consisting of 2 HP motor & worm reduction gear box provides the longitudinal movement to the saddle, on which the buffing unit is mounted. A VFD interface facilitates the longitudinal movement of the saddle a stepless feed range of 100 mm to 1,000 mm per minute. The sliding surfaces of longitudinal axis and tail-stock slide movement are provided with the combination of case hardened guideway strips and turcite for wear resistance and smooth movements.