Nitrided Rubber Screw And Barrel for Tire Manufacturing - HB260-310 Hardness
Product Summary
Our nitrided rubber screw and barrel is specifically designed for tire and rubber product manufacturing. Made from 38CrMoAl alloy, it achieves a nitrided hardness of HV850-1000 with case depth 0.45-0.7mm. The surface roughness is Ra 0.4 and screw straightness 0.015mm, ensuring precise extrusion.
Key Selling Points
- Superior Wear Resistance: Nitrided hardness HV850-1000 and case depth 0.45-0.7mm provide exceptional durability in rubber compounding.
- High Precision: Surface roughness Ra 0.4 and straightness 0.015mm guarantee consistent product quality.
- Certified Quality: ISO9001:2015 certified design and manufacturing process (certificate 15/25Q6428R80).
- Flexible Material Options: Available in 38CrMoAl, D2, AISI316, and many others.
- Proven Performance: 1-5 years lifetime under normal high-filler PVC extrusion conditions (based on customer case).
Technical Specifications
| Diameter Range | Φ20-Φ650 |
| Hardness After Hardening & Tempering | HB260-310 |
| Nitrided Hardness | HV850-1000 |
| Nitrided Case Depth | 0.45-0.7mm |
| Nitrided Brittleness | Less Than Grade 2 |
| Surface Roughness | Ra 0.4 |
| Screw Straightness | 0.015mm |
Models and Options
Models: Φ20-Φ650. Available in various lengths and geometries per customer drawing.
Materials and Structure
Standard material: 38CrMoAl (1.8509). Optional: D2, AISI316, 34CrAlNi7, DC53, AISI420, 31CrMoV9, Gr12MoV, 9Cr18MoV, 40CrNiMo, 440C, 17PH-4, 42CrMo, AISI304, Incoel 718, 40Cr, 1.2316, Hasteloy C-276, C45, 1.4462, Incoel 625, SKD11, 1.4404, Monel 400, SKD61, 1.4122, Monel 500, S600.
Applications
Designed for tire and rubber product manufacturing extrusion lines. Works with continuous counter-rotating conical twin-screw extruders.
Customization
We accept custom designs based on customer technical drawings. MOQ: 1 unit. Batch orders from 1 to 50 pieces per batch.
Case Study
Client: Plastic Products Manufacturer
Application: High-wear and corrosive polymer processing
Result: Significantly enhanced wear and corrosion resistance, prolonged equipment service life, minimized production downtime.
FAQ
- What is the MOQ? MOQ is 1 unit.
- What payment terms are available? 30/70 (30% deposit, 70% before shipment).
- Do you offer pre-shipment testing? Yes, pre-shipment test is accepted.
- What certifications do you have? ISO9001:2015, ISO14001:2015, ISO45001:2018.
- Can you manufacture according to our drawings? Yes, we accept custom designs based on technical drawings.
- What is the typical lead time? Not specified.
- Do you have experience with high-filler PVC? Yes, we have cases with high-filler PVC extrusion.
Inquiry Information
Contact: Martin - info@gmscrew.com | Tel: +86 13575629951 | WhatsApp: +86 13858143949
