Injection Screw and Barrel/Single Screw and Barrrel for Injection Machine 

ZY is a very experienced and professional ISO certificated manufacturer for screws and barrels, we have exported our products to 23 different countries with good quality products and serviced. Pls find the detailed info. For injection screw and barrel as below: Specification: Screw diameter: Φ 20mm-Φ 220mm Mould clamping force: 250T-3200T Shot weight: 30G-30000G Technical Information Base Materials: 1)38CrMoAlA(JIS SACM645) 2)42CrMo(AISI 4140) Bimetallic alloy materials: 1)Fe-based alloy 2)Ni-based alloy/Deloro alloy 3)Tungsten carbide/Wolfram carbide Technics: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting Technical parameter: Nitrided layer depth: 0.5-0.8mm Nitrided hardness: 900-1000HV Nitrided brittleness: Less than grade 1 Surface roughness: Ra0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitr…