• Model NO.：ZYSCREW
• Engagement System：Full Intermeshing
• Screw Channel Structure：Deep Screw
• Exhaust：Don′t Exhaust
• Automation：Automatic
• Computerized：Computerized
• Screw Barrel：Bimetallic Screw Barrel
• Bimetallic Alloy Depth：3mm
• Transport Package：Film Wrapped in Wooden Case
• Specification：ISO9001: 2008
• Trademark：Zhongyang
• Origin：China(Mainland)
• HS Code：84779000
• Production Capacity：200 Sets,Month

Basic Info.

Model NO. ZYSCREW Engagement System Full Intermeshing Screw Channel Structure Deep Screw Exhaust Don′t Exhaust Automation Automatic Computerized Computerized Screw Barrel Bimetallic Screw Barrel Bimetallic Alloy Depth 3mm Transport Package Film Wrapped in Wooden Case Specification ISO9001: 2008 Trademark Zhongyang Origin China(Mainland) HS Code 84779000 Production Capacity 200 Sets/Month

Product Description

Bimetallic Screw Barrel (welded / centrifugal casting)
(used in all kinds of screw barrel)

Specification:
Screw diameter: Φ 15mm-Φ 300mm
Maximal length: 8000mm
Barrel inner diameter: 15-300mm
Maximal length: 4000mm

Different bimetallic alloys are available for different raw materials.

Technical Information

Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)9Cr18MOV

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

Warranty and service: 1 year

Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly

Experienced manufacture, we will be the best choice.