In the high-volume building wire and electrical cable sector, production efficiency, consistent insulation quality, and rapid changeovers are essential for meeting tight delivery schedules and international standards. The RLB Building Wire Extrusion Production Line is specifically engineered to extrude high-performance thermoplastic compounds — PVC, PE, XLPE, and Low Smoke Halogen-Free (LSHF/HFFR) — for building wires, installation cables, and THHN/THWN conductors.
Available in two optimized series (RLBEH high-speed series for small cross-sections and RLBEW series for larger power cables), these lines deliver exceptional output speeds, outstanding concentricity, and uniform wall thickness across the full range of building wire applications.
Core Technology & Engineering Advantages of This Wire Extrusion Line
- Wide Material Versatility: Optimized screw geometry and multi-zone temperature control ensure excellent melt homogeneity and minimal degradation when processing PVC, PE, XLPE, or LSHF compounds — ideal for both cost-effective PVC building wires and high-performance XLPE/LSHF cables.
- Flexible Co-Extrusion Options: Single or tandem co-extruders for color skin/striping layers or Nylon (PA) outer jacketing — the preferred solution for premium THHN/THWN production. The nylon jacket provides superior abrasion resistance, easier conduit pulling, and enhanced chemical protection.
- Intelligent Automation & Control: Mitsubishi PLC + MMI system with real-time laser diameter feedback and closed-loop adjustment guarantees consistent insulation thickness, high repeatability, and full traceability.
- Complete Turnkey Configuration: Includes automatic material feeding, granule dryers, color masterbatch metering, high-precision crossheads, spark testers, diameter gauges, printers, and seamless integration with downstream coiling, taping, and shrink-wrapping machines.
- Factory-Wide Automation Ready: Full vacuum conveying and central feeding systems for raw materials, enabling fully automated plant-wide production with reduced labor and higher efficiency.
The result is cables with superior electrical properties, smooth surface finish, and repeatable quality — fully compliant with IEC, UL, GB, and other major standards.
Technical Specifications
RLBEH High-Speed Series (Small Cross-Section Building Wires)
| Model |
Cross Section (mm²) |
Finished Diameter (mm) |
Max. Line Speed (m/min) |
| RLBEH-75 |
1.5 – 6 |
6 |
600 |
| RLBEH-90 |
1.5 – 10 |
8 |
800 |
| RLBEH-100 |
1.5 – 16 |
10 |
900 |
| RLBEH-120 |
1.5 – 16 |
14 |
1200 |
RLBEW Series (Medium & Large Cross-Section Cables)
| Model |
Cross Section (mm²) |
Finished Diameter (mm) |
Max. Line Speed (m/min) |
| RLBEW-90 |
10 – 50 |
15 |
100 |
| RLBEW-100 |
10 – 70 |
20 |
150 |
| RLBEW-120 |
16 – 150 |
25 |
250 |
| RLBEW-150 |
25 – 240 |
30 |
350 |
Primary Applications in Building Wire & Low-Voltage Cable Industry
- Building & Installation Wires: BV, BVV, NYY, H07V-U/R, THHN/THWN, and other single/multi-core cables
- Power & Control Cables up to 240 mm²
- Flame-Retardant & Low-Smoke Halogen-Free Cables for public buildings and infrastructure
- Nylon-Jacketed THHN/THWN Conductors for conduit and industrial wiring
This building wire extrusion line is the smart choice for manufacturers seeking consistent, high-quality output with minimal scrap and maximum ROI.
Engineered for Reliability, Efficiency & Long-Term Partnership
Manufactured by RLB (Jiangsu Reliable Industry Co., Ltd.) — an experienced cable and wire machinery supplier with proven turnkey expertise — every component is built for 24/7 continuous operation. Compared to standard lines, the RLB wire extrusion lines deliver:
- Up to 1200 m/min speeds on small sections
- Superior material utilization and reduced waste
- Full automation options that cut labor costs significantly
- Repeatable quality that meets strict UL/IEC requirements
Whether you produce standard PVC building wires or premium XLPE/LSHF/THHN cables, this cable and wire turnkey solution provides the performance, flexibility, and long-term reliability modern cable producers demand.
Ready to boost your building wire production capacity?
Inquiry Now for technical quotation, custom configuration, layout design, or factory visit. Our engineering team offers full turnkey solutions, installation support, operator training, and ongoing technical partnership.
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