• Injector barrels and screws
• Extruder barrels and screws
• Conical twin screws and barrel
• Standard parallel twin screws and barrel
• Rubber screw and barrel
• Standards of cold feeding pin barrels and screws

• Phone Number:+86- 580-8011999 8011998 8011898
• Office Sale Tel: +86-580-8011988 8011889
• FAX: +86-580-8011888
• Email: zsjtjx@yahoo.com.cn

Materials

• Meta: 38CrMoAla
• Bimetallic powder: Ni+Co+Cr+W+Si+Fe+B+C
• Cr electro-plating

Technical Index

• Material: 38CrMoAla
• Nitriding Hardness: 900-1000HV
• Nitriding depth: 0.5-0.75mm
• Electro-Plating depth: 0.05-0.10mm
• Electro Hardness: >850HV
• Bimetallic layer depth: 1.2mm-2.0mm
• Bimetallic layer Hardness: <65HRC
• Nitriding Fragility: < Grade 1
• Surface roughness(Ra): 0.4um
• Straightness: 0.015mm

Main Technical Standards

• Extruder barrels and screws types: 15-300
• Length/Diameter: L/D=15-45
• Injector barrels and screws: Clamping force: 25-3200tons  Injection capacity: 30-25000g
• Against parallel twin screws: 15-130
• Length/Diameter: L/D=16-35
• Conical / parallel twin screws: 45/90-92/188