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**Basic Product Information:**
- **Model No.:** Injection Screw Barrel
- **Structure:** Vertical and Horizontal Composite
- **Automation Level:** Fully Automatic
- **Screw Barrel Type:** Single Screw Barrel for PVC Injection
- **Nitrided Hardness:** 900–1000 HV
- **Surface Roughness:** Ra 0.4 μm
- **Trademark:** Zhongyang
- **Origin:** Mainland China
**Additional Technical Details:**
- **Type:** Injection Blow Molding Machine
- **Plastic Type:** Thermoplastic Materials
- **Control System:** Computerized
- **Nitrided Layer Depth:** 0.5–0.8 mm
- **Nitrided Brittleness:** Less than Grade 1
- **Screw Straightness:** 0.015 mm
- **Certification:** ISO 9001:2008
- **HS Code:** 84779000
**Product Specifications:**
- **Screw Diameter:** Φ 20mm – Φ 220mm
- **Clamping Force:** 250T – 3200T
- **Shot Weight:** 30g – 30,000g
**Material Options:**
- **Base Materials:**
1. 38CrMoAlA (JIS SACM645)
2. 42CrMo (AISI 4140)
3. 4Cr5MoSiV1 (JIS SKD-61)
4. 9Cr18MOV
5. HPT
- **Bimetallic Alloys:**
1. Fe-based alloy
2. Ni-based / Deloro alloy
3. Co-based alloy
4. NiCo-based alloy
5. Tungsten carbide
**Manufacturing Processes:**
- Heat Treatment
- High-frequency Quenching
- Nitriding Treatment
- Hard Chrome Plating
- Bimetallic Alloy Welding
- Bimetallic Centrifugal Casting
**Technical Parameters:**
- **Nitrided Layer Depth:** 0.5–0.8 mm
- **Nitrided Hardness:** 900–1000 HV
- **Nitrided Brittleness:** < Grade 1
- **Surface Finish:** Ra 0.4 μm
- **Screw Straightness:** 0.015 mm
- **Chrome Plating Hardness After Nitriding:** ≥ 950 HV
- **Chrome Layer Thickness:** 0.025–0.085 mm
- **Bimetallic Layer Depth:** 3 mm
**Warranty & Service:** 1 Year
**About Zhongyang:**
1. **Professional Team:** We have dedicated teams in sales, design, production, inspection, and customer service to ensure an exceptional experience.
2. **High-Quality Products:** Equipped with advanced machinery like CNC machines and Stellite PTA welders to maintain top quality.
3. **Global Market Presence:** With over 5 years of international trade experience, we serve customers worldwide and are continuously expanding our reach.
4. **Strategic Location:** Located in Jintang Town, Zhoushan City, near Ningbo and Shanghai Ports, offering convenient logistics.
5. **Commitment to Excellence:** We take every project seriously, striving to meet all customer requirements with professionalism and care.
**Contact Us Today!**
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