It belonging to no cutting processing equipment has the advantages of high production efficiency and stable quality. The whole body of cast iron is made of hydraulic technology. The part that needs to be reduced in diameter such as round steel and rebar is sent into a special grinding tool by cold compression molding. The density of the steel in the shrinkage part can be greatly improved, thereby improving the tensile strength of the material. The toughness and impact toughness are not reduced, so that the strength of the threaded part and the part of the rod are consistent, which solves the disadvantages of reducing the tensile force and impact toughness due to the peeling of the lathe, and is a special equipment for processing the anchor bolt, which can perfectly replace the lathe.