It is suitable for fine sanding of resin paint, polyester paint,waterborne paint, PV, PU, PE and melamine etc.It can also be used for Auto line Operation Working principle:the whole machine frame adopts profile welding and manual aging treatment. the machine body is not deformed. the sanding machine runs more firmly, stable and reliable.Choose the servo motor to achieve the accuracy of 0.01mm. the height of the sanding roller is shown by the scale, the lifting precision can be accurate to 0.01 mm.Contact Roller adopts frequency converter to control the speed and it can sand the veneer and various paint.