This machine applies type of especially door and rolling guide by high strength and double steel plate.the surface of guide is lined with interchangeable mported high quality wear-resistant steel belt.the grinding wheel lifting set up with auto fast and slows feed.reciprocating stroke is using advanced cycloid grinding wheel. Deeleration machine drive has buffer device which can control speed of belt drive.knefe holder is using worm gear transmission,it can change 90degree,magnetic chuk knife,grinding head degree has special grinding head motor, it apples paste type of cylinder ginding wheel.the appliecaton effect is well and the grinding viscosity is high .itcan use in the industries of wood,food,print ,papermaking,plastic,carton and so on.