Sewing Machine Spare Parts,Sewing Machine Spares,Stitching Machine Spare Parts,Tailoring Machine Spare Parts Ningbo Dingming Machinery Manufacturing Co.,Ltd , https://www.dingmingmachine.com
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**Product Specifications:**
- **Model No.:** Injection Molding Screw Barrel
- **Structure:** Vertical and Horizontal Composite
- **Automation Level:** Fully Automatic
- **Screw Type:** Single Screw for Injection Molding Machinery
- **Nitriding Hardness:** 900–1000 HV
- **Surface Roughness:** Ra 0.4 μm
- **Trademark:** Zhongyang
- **Origin:** Zhejiang, China
- **Type:** Injection Blow Molding
- **Material Type:** Thermoplastic
- **Control System:** Computerized
- **Nitriding Depth:** 0.5–0.8 mm
- **Nitriding Brittleness:** Less than Grade 1
- **Screw Straightness:** 0.015 mm
- **Certification:** ISO 9001:2008
- **HS Code:** 84779000
**Product Description:**
This injection screw barrel is designed for use in injection molding machinery, offering high performance and durability. It is suitable for a wide range of applications, including injection blow molding and thermoplastic processing. The product is available in various sizes, with screw diameters ranging from Φ 20mm to Φ 220mm, and can support mold clamping forces from 250T to 3200T, with shot weights from 30g to 30,000g.
**Material Composition:**
The base materials used include high-quality alloys such as 38CrMoAlA (JIS SACM645), 42CrMo (AISI 4140), 4Cr5MoSiV1 (JIS SKD-61), 9Cr18MOV, and HPT. For enhanced wear resistance, bimetallic alloys like Fe-based, Ni-based (Deloro), Co-based, NiCo-based, and tungsten carbide are also used.
**Manufacturing Process:**
Our screw barrels undergo advanced treatments such as heat treatment, high-frequency quenching, nitriding, hard-chrome plating, and bimetallic alloy welding or centrifugal casting. These processes ensure superior strength, surface finish, and long service life.
**Technical Parameters:**
- Nitriding layer depth: 0.5–0.8 mm
- Nitriding hardness: 900–1000 HV
- Surface roughness: Ra 0.4 μm
- Screw straightness: 0.015 mm
- Hard-chrome hardness after nitriding: ≥ 950 HV
- Chrome plating thickness: 0.025–0.085 mm
- Bimetallic layer depth: 3 mm
**Warranty & Service:**
We offer a 1-year warranty on all products, backed by fast delivery, excellent customer service, and competitive pricing. Our experienced manufacturing team ensures reliable quality and quick production turnaround.
**Why Choose Us?**
1. High-quality raw materials
2. Professional customer support
3. Fast shipping
4. Competitive prices
5. Efficient production process
With years of experience in the industry, we are your trusted partner for injection molding components. Whether you need standard or custom-made screw barrels, we have the expertise to meet your requirements.
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