Centerless Grinder Machinery

Centerless Grinder MachinerySalient features:Gring wheel and regulating wheelThe grinding wheel designed in cantilever type, and its spindle adopted multi-plate long bearing bushed static-hydrodynamical oil film bearing.Cantilevered regulating wheel, the spindle supports solid bearing sliding with 1:30 taper.Use lubricating oil alone on the spindle.The regulating wheel feed slide is supported on Flat-V hydraulic unloaded guideway.Servo motor drives high precision Planetary gear reducer, and coupler drives ball screw for feeding, the minimum feeding amount is 0.001mm.DressingGrinding wheel feeding and reciprocate are dressed through servo motorRegulating wheel reciprocate is dressed through servo motor, step-less.ElectricAC frequency converter is used for regulating wheel speed control .Hydraulic transmission & stepless speed regulation are adopted on regulating wheel & grinding wheel dresser.Control systemThe machine operated by 10 touch screen, auto plunge feeding, load, speed, time and steps can be adjusted.Equipped PLC or CNC electrical systemCooling systemCooling system adopts magnetic separator.Machine body and designIron casting with high rigidity, natural aging.Equipped automatic plunge device in the grinder.Technical Data:















Thru-feed









1)Grinding diameter



10-100mm





2)Grinding length



210mm





Plunge feed









1)Grinding diameter



10-100mm





2)Grinding length



195mm





Grinding wheel specifications



P500x200x305mm





Regulating wheel specifications



PSA350x200x127mm





Grinding wheel speed



1250r/min





Regulating wheel speed(stepless)



10-200r/min





Swiveling angle of regulating wheel









1)In vertical plane



-2o~ 5o





2)In horizontal plane



0o~ 3o




Feed amount per division of the feed handwheel



0.002mm





Feed amount per division of the dresser



0.01mm





Height from centerline of gri.wheel & reg.wheel to workrest



255mm





Total power of machine



21.66kw





1)Grinding wheel motor



18.5kw





2)Regulating wheel motor



2.2kw





Overall dimensions



2675x1505x1615mm





Machine weight



about 4500kg





Machining accuracy









1)Roundness



0.002mm





2)Cylindricity



0.003mm





3)Surface Roughness



Ra0.32um





Main ApplicationThe grinder is mainly used for through-feed grinding of cylindrical surface and ring-type parts, as well as for plunge-cut grinding of various stepped, cones that the conicity less than 1:20 and cylindrical surfaces semi-automatically or automatically.