JCD Series 51/105 Nitrided Conical Twin Screw Barrel | Plastic Profile Extrusion
Product Details
This JCD 51/105 nitrided conical twin screw barrel is dedicated to plastic profile extrusion equipment—including PVC door/window frames, decorative profiles, and plastic heteromorphic profile extruders. Adopting 38CrMoAlA alloy steel + precision nitriding treatment, it’s optimized for the 51/105 tapered diameter specification, ensuring uniform plasticization of PVC profile materials (even low-filler formulations). Verified by profile manufacturers, it reduces profile surface defects (scratches, unevenness) by 80% and maintains stable dimensional accuracy (±0.1mm) for long-term continuous production.
Its core advantage lies in the nitrided surface’s wear resistance + matched intermeshing twin-screw structure, which balances material conveying efficiency and plasticizing quality—ideal for medium-scale plastic profile production lines.
| Parameter | Detail |
|---|---|
| Model | JCD Series 51/105 (Tapered Diameter: 51mm/105mm) |
| Screw Material | 38CrMoAlA Alloy Steel |
| Surface Treatment | 168H Vacuum Gas Nitriding |
| Nitrided Hardness | HRC62°-65° |
| Nitriding Depth | 0.4mm-0.7mm |
| L/D Ratio | 25:1-30:1 (Optimized for Profile Plasticization) |
| Applicable Equipment | PVC Profile Extruder, Plastic Heteromorphic Profile Extruder |
| Applicable Materials | PVC Profile Resin, Low-Filler Plastic Profile Materials |
| Profile Dimensional Accuracy | ±0.1mm |
| Applicable Production Scale | Medium-Capacity Profile Production Lines |
Q: What types of profiles can this screw barrel process?
A: It’s mainly designed for PVC door/window frames, decorative profiles, and common plastic heteromorphic profiles—suitable for most rigid PVC profile formulations.
Q: Why choose nitrided treatment for profile extrusion?
A: Nitriding enhances surface wear resistance, which reduces screw wear when processing PVC profile materials (with slight abrasiveness) and maintains stable plasticizing performance for 12,000+ working hours.
Q: How to match it with my existing 51/105 profile extruder?
A: We support dimension customization based on your extruder’s installation parameters (shaft diameter, length, thread pitch)—just provide the equipment drawing, and we can deliver a fully compatible screw barrel.
With 72-hour quenching + 168-hour nitriding, the JCD 51/105 conical twin screw barrel achieves precise dimensional matching and stable plasticization. It solves the core difficulty points of poor profile surface quality and unstable dimensional accuracy in medium-scale profile extrusion, becoming a cost-effective choice for PVC profile manufacturers.
Mr. Qin
manager
- Email: qin@jcdextruder.cn
- Tel: 13826925568
- WhatsApp: 8613826925568
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WeChat:
13826925586
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