Zhejiang Zhongyang Screw Manufacturing Co., Ltd.

Single Screw Barrel for Injection Molding Machine or blowing molding screw

Specification:
Screw diameter: Ø 20mm-Ø 220mm
Mould clamping force: 250T-3200T
Shot weight: 30G-30000G

Products could appeal in different mold weight; Different material, different portion, different mold design.

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

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

Choose us, we do screw and barrel in good attitude.