The building block screw consists of core spindle and several hollow screw segments which can be replaced easily for different materials. The mixing components adopts building block type, which can be mounted and replaced conveniently. Such design makes it possible to process several kinds of materials with one screw.

Base material 38CrMoAlA, Welded inlay on the flight, prolong life of screw. Easy wearing parts of barrel feed inlet made from imported anti-wear alloy can be improvde abrasion performance