Main product specifications

◆Injection machine screw and barrel：Φ15-Φ300

◆Length/Diameter Ratio：L/D=15-46

◆Injection molding machine melt tube (barrel) screw specifications：25-3200t power of locknut 30g-25000g capacity of injection

Material：(1) 38CrMolA（2）SKD-61  （3）SKD-11  （4）42CrMo

Processing technology：

Heat_treatment  Hard chrome plating  Nitriding treatment  Vacuum quenching  spray corrosion-resisting and wear-resisting bimetallic layer

Technical Indexes

★Depth of nitration case:0.5～0.8mm

★Nitriding Hardness:900～1000HV

★Nitriding Brittleness：one grade

★Surface  Roughness:Ra 0.4μm

★Screw Straightness：0.015mm

★Hardness of surface chromium coating after nitriding：≥950Hv

★Hardness of dual alloy：HRC55°—62°

★Thickness of chromium coating：0.03—0.08mm

★Depth of dual alloy：> 2mm

★Bimetallic screw— 1、The matrix is42CrMo 2、The matrix is38CrMoALA 3、The matrix isSKD61

★Stainless steel screw-adaptation scope: PC, PVC, acrylic, transparent material, etc.

Note: Our factory can undertake mapping, design, drawing (sample) processing and old screw, barrel repair and other services. Excellent quality, perfect service to meet customer's product requirements! Welcome new and old customers to visit us.