Conical Twin Screw Barrel for Plastic Machine

Conical Twin Screw Barrel for Plastic Machine

1.conical and parallel twin screw

2.rate of screw can be designed

3.38CrMoAlA

Conical Twin Screw Barrel for Plastic Machine











Our conical twin screw and barrel provide high surface area and low shear screw designs that will optimize the melt homogeneity.









Hardness of adjuster HB260-290

Depth of nitration 0.4-0.7mm

Hardness of nitration HV800-1050

Depth of double alloys 0.8-2.0mm

Hardness of double alloys HRC56-65















Screw Main Parameter:







Screw Diameter: 20mm-300mm







Material: 38CrMoAlA; SKD61; SKD11; 40Cr; 42CrMo; high quality alloy steel







Technology: Nitriding treatment, alloy coating spraying, heat-treatment







Appliance: PVC, PP, PE, PA, PC, ABS, AS etc







Depth of Nitrated Layer: 0.40-0.70mm







Hardness of nitration: 950-1050Hv







Fragility of nitration: Less than grade 1







Surface Hardness of Nitrated Cr coating layer: Greater than 950Hv







Hardness of Bimetallic Layer: HRC55-62







Thickness of Cr-coating Layer: 0.03-0.08mm







Depth of Bimetallic Layer: Greater than 2mm















Our Advantages







-screw and barrel for various models







- We can produce diameter from 20mm to 300mm screw







- professional engineers design for you







- thousands of drafts can supply for you







- Professional Tech. and R&D team







- Insist on developing screw and barrel for more injection and extruder machine models







- Main market: South America,Eastern Europe,Mid East/Africa











Treatment / Technology







Heat-treatment







Nitriding treatment







Alloy coating spraying







Electroplate hard-chrome







High-frequency quenching







Spraying corrosion wear-resisting dual metal layers







Vacuum quenching























Fragility of nitration: Less than grade 1



Roughness of the surface: Ra0.4



Linearity of the screw: 0.015mm



The surface hard chromium plating hardness after nitrogenation: 900HV



Chromium-plating layer thickness: 0.05-0.1mm



Quality 38CrMoAIA



Quality twin-phase stainless



Quality satellite powder of surface spray



Cold alloys hot alloys



Advanced nitriding



Process of hot sprayed hard alloys







Our Factory











Our package











About JIAWEI:



We have an experience of more than 20 year of manufacturing and designing Plastic machines, varied Screws and Barrels and spares. We concentrate on improving quality, updating design and enhancing service.

Screws Barrels for Injection, Extrusion, and Blow Molding applications; relevant accessories; plastic machinery.

Located in China's Screw Town - Jintang Town in Zhoushan City, near to Ningbo Port and Shanghai Port.

Global sales network reaching South America, Eastern Europe, Southeast Asia, Africa, Oceania and the Middle East.

We assure the customer benefits. We provide competitive price, We Emphasis on Cooperation.









Our screw and barrel can ensure high performance and low energy consumption of extruder and Injection molding machine.







We can supply professional screw and barrel to your order!