In the extrusion industry, the conical extruder twin screw barrel plays a vital role in producing high-quality plastic profiles, pipes, and fittings—especially in the PVC sector. If you’re seeking a long-lasting, precision-engineered solution for your twin screw conical extruder, understanding what makes a good barrel — and where to source it — is key to production success.
🔍 What Is a Conical Twin Screw Extruder Barrel?
Unlike parallel screw barrels, a conical twin screw barrel features a tapered design, where the diameter of the screws and barrel decreases from the feeding end to the output end. This geometry offers several processing advantages:
✅ Key Benefits:
- Higher torque capacity for plasticizing rigid materials like PVC
- Better sealing performance at the discharge end
- Improved pressure build-up and melting efficiency
- Compact design, ideal for limited factory space
Conical screw barrels are most commonly used in:
- PVC pipe extrusion
- PVC profile extrusion
- Window frames and cable trunking production
- Plastic compound extrusion lines
🇨🇳 Why Buy Conical Twin Screw Barrels from China?
China is one of the largest producers and exporters of conical twin screw extruder barrels, offering:
- Reliable quality
- Custom machining to fit brands like SJSZ-45, SJSZ-65, SJSZ-80, SJSZ-92
- Competitive pricing for wholesale buyers
- Fast delivery and global logistics experience
🏭 Trusted Manufacturer: Zhoushan Juyuan Machinery Co., Ltd.
Zhoushan Juyuan Machinery Co., Ltd. is a professional manufacturer of conical twin screw barrels for PVC extruders.
Why choose Juyuan?
- Over 20 years of OEM/ODM experience
- Tailor-made barrels for SJSZ series machines
- Barrel material: 38CrMoAlA with nitriding or bimetallic wear-resistant layer
- Precise CNC machining and polishing for high concentricity
- Exported to Europe, Russia, Turkey, India, Egypt, and more
🔗 Related post: PVC Extruder Screw and Barrel Selection Guide
⚙️ Technical Specifications
| Parameter | Specification Range |
|---|---|
| Screw Diameter | 45/90mm to 92/188mm |
| Barrel Material | 38CrMoAlA / bimetallic alloy |
| Hardness After Nitriding | ≥ HV950 (Depth ≥ 0.6mm) |
| Barrel Type | Closed, vented, or customized |
| Application | Rigid PVC, CPVC, WPC, UPVC profiles |
📦 MOQ & Delivery Info
- MOQ: 1 set
- Lead Time: 15–25 working days
- Packaging: Rust-proof treatment + fumigation-free wooden case
- Shipping: FOB Ningbo/Shanghai, or DDP to your warehouse upon request
🌍 Who Uses Conical Twin Screw Barrels?
Buyers from industries such as:
- Plastic extrusion machinery OEMs
- PVC pipe & profile factories
- Extrusion line maintenance teams
- Plastic extrusion line integrators
Whether you need a spare part or a full set for a new machine, sourcing from China ensures you get durable and cost-effective conical extruder barrels.
🌐 Industry Resources
📩 Get a Free Quote Today
Looking for a reliable supplier of conical twin screw extruder barrels from China? Contact Zhoushan Juyuan Machinery Co., Ltd. for expert advice, competitive pricing, and quick turnaround.
📧 Email: cxj.job@gmail.com
🌍 Website: https://juyuan-machinery.com
📱 WhatsApp: +86 13905808474
Get barrels that last — precision-made, export-ready, and built for performance. Inquire now!