Zhejiang Guangming Plastics Machinery Co., Ltd., is the leading manufacturer in China specialized in manufacturing screws & barrels for extruders and injection moulding machines. Bimetallic Conical Twin Screw Barrel,Bimetallic Twin Barrel,High Speed Bimetallic Twin Screw,Conical Twin Barrel Zhejiang Guangming Plastics Machinery Co.,Ltd. , https://www.gmscrews.com
**Specifications:**
Screw Diameter: Ø 20mm – Ø 220mm
Mold Clamping Force: 250T – 3200T
Shot Weight: 30g – 30,000g
**Base Materials:**
(1) 38CrMoAlA (JIS SACM645)
(2) 42CrMo (AISI 4140)
(3) 4Cr5MoSiV1 (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
**Techniques:**
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
**Technical Parameters:**
Nitrided Layer Depth: 0.5–0.8mm
Nitrided Hardness: 900–1000HV
Nitrided Brittleness: Less than Grade 1
Surface Roughness: Ra 0.4
Screw Straightness: 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
We focus on quality and customer satisfaction. With years of experience in manufacturing, we are your reliable partner for high-quality screw components. Whether you need custom designs or standard parts, our team is ready to deliver excellent results tailored to your needs. Let us be your best choice for precision engineering solutions.
With over 25 years' experience in this field, we can produce customized screws or barrels according to your specific demands with high quality and competitive price.
We can make bimetallic screw & Barrel based on 1.8550 material.