Screw plate-shaped chipping machine can cut log andsmall-diameter log with less than 200mm diameter and is applicableto paper pulp factory, forest tree factory, paper mill, thermalpower plant, etc. Timber Chipping machine ismainly composed of four parts such as principal machine, coupling,bottom frame and motor, etc, in which the principal machine ofchipping machine is composed of cutter head, upper and lowercovers, feed inlet and outlet, etc.