GTPG- (1-8) group buffing machine, mainly to meet the different requirements of surface finish of the heaters by heater factories. There are 1 - 8 groups buffing machines to choose. Polishing wheel is driven by motor high-speed rotation. The pressure wheel is driven by another motor through the reducer. The diameter can be adjusted conveniently, and the axis inclination of polishing wheel can meet the needs of different tube diameter.