• Model NO.：ZYSCREW
• Screw：Twin-Screw
• Size：Customize
• Nitrided Layer Depth：0.5-0.8mm
• Nitrided Hardness：HRC56-58
• Bimetallic Layer Depth：3mm
• Bimetallic Layer Hardness：HRC58-62
• Transport Package：Slushing Oil Coated& Film Wrapped in Wooden Case
• Specification：ISO 9001: 2008 approved
• Trademark：ZHONGYANG
• Origin：China
• HS Code：84779000
• Production Capacity：100 Sets, Month

Basic Info.

Model NO. ZYSCREW Screw Twin-Screw Size Customize Nitrided Layer Depth 0.5-0.8mm Nitrided Hardness HRC56-58 Bimetallic Layer Depth 3mm Bimetallic Layer Hardness HRC58-62 Transport Package Slushing Oil Coated& Film Wrapped in Wooden Case Specification ISO 9001: 2008 approved Trademark ZHONGYANG Origin China HS Code 84779000 Production Capacity 100 Sets/ Month

Product Description

R-PVC Pipe Twin Parallel Screw and Barrel

Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
The compression ratio of screws can be designed according to different products and ingredients

Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT

Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)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 nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm

Production time: 35 days.
Warranty and service: 1 year.
Focus on quality and service.
Experienced manufacturer, we will be the best choice.