In today’s high-demand electrical power transmission, new energy vehicle and industrial equipment sectors, manufacturers need fast, cost-effective and consistently high-quality copper conductor production. The Copper Material Continuous Extrusion Machine (Conform continuous rotary extrusion line) provides a proven single-wheel lateral extrusion solution that converts oxygen-free copper (OF Cu) rods directly into soft, high-conductivity round wires, flat wires, busbars and complex profiles in one continuous, high-speed process.
With extended extrusion belts, specially heat-treated wheels and industry-leading low leakage rates (≤3–5 %), the RLB series achieves uniform microstructure through dynamic recrystallization, excellent surface finish and superior electrical performance while dramatically reducing material waste and energy consumption compared with traditional multi-step drawing or hydraulic extrusion methods.
The Conform Continuous Rotary Extrusion Process for Copper
The RLB Copper Continuous Extrusion Machine employs advanced continuous rotary extrusion (CRE / Conform) technology. Oxygen-free copper rod feedstock is fed into a precision-grooved rotating extrusion wheel. Intense friction and controlled pressure generate localized heat, bringing the material into a plastic state where dynamic recrystallization occurs. The material then flows into the die chamber and exits as finished high-conductivity product of unlimited length in a single, continuous operation — without the need for preheating or post-extrusion annealing in most applications.
Key advantages for copper processing:
- Preserves and enhances the inherent high conductivity of oxygen-free copper
- Produces soft temper material ideal for direct bobbin take-up or further forming
- Excellent bendability and formability for complex busbar shapes used in EV and switchgear
- Significantly higher material yield and lower energy use than traditional routes
Advanced Engineering Features & Process Benefits
Lengthened Extrusion Belt & Heat-Treated Wheel
Extended dwell time ensures complete compaction and dynamic recrystallization, delivering dense, homogeneous microstructure with exceptional electrical conductivity and long-term thermal stability. Special heat treatment extends wheel service life under demanding high-pressure and high-temperature conditions.
Single-Wheel Single-Groove Lateral Extrusion
Provides stable high-speed production with precise dimensional control (typical tolerance ±0.05 mm) and outstanding repeatability — critical for tight-tolerance copper busbars and flat wires used in high-current applications.
Soft Extruded Products – Annealing-Free
Copper exits in soft temper, ready for direct bobbin take-up. Optional integrated online cutting saw delivers precise length control for busbar and profile production, eliminating costly and energy-intensive annealing steps.
Compact Intelligent Full-Line Layout
Complete production line includes: horizontal pay-off system, wire straightener, continuous extrusion main machine, cooling & anti-oxidation system, length counter, caterpillar tractor, constant-tension take-up and receiving stands. All modules are linked by automated conveying for seamless 24/7 operation. Centralized PLC + HMI touchscreen with industrial cloud data traceability and remote diagnostics module enables real-time monitoring, parameter adjustment and predictive maintenance.
Energy-Efficient & Eco-Friendly Design
No preheating or annealing required. Integrated hydraulic system with zero oil leakage. Mechanical locking of extrusion tooling guarantees stable process conditions. One or two operators can efficiently manage multiple lines.
Premium Components & Continuous Improvement
Upgraded high-quality gearbox, Siemens/ABB electrical controls, aviation plugs for fast connection, constant-tension take-up and automatic short-rod feeding. Dedicated R&D team and independent laboratory support annual machine improvements and customer-specific material testing.
These features make the RLB Copper Continuous Extrusion Machine the preferred choice for producers seeking higher throughput, lower operating costs, reduced scrap and consistent premium quality in copper busbar, flat wire and profile manufacturing.
Technical Specifications
| Model | Extrusion Form | Extrusion Wheel Dia. | Main Motor Power | Rated Speed | Sectional Area | Max. Width | Output (kg/h) | Leak Amount | Raw Material (Oxygen-Free Cu Rod) |
|---|
| RLB285/90 | Single-wheel single-groove | Φ285 mm | 90 kW | 11 r/min | 15–150 mm² | 35 mm | 400 | ≤3 % | Φ12.5 mm |
| RLB350/200 | Single-wheel single-groove | Φ340 mm | 200 kW | 11 r/min | 80–400 mm² | 80 mm | 400–600 | ≤5 % | Φ16 mm |
| RLB400/250 | Single-wheel single-groove | Φ400 mm | 250 kW | 10 r/min | 250–1000 mm² | 160 mm | 400–1300 | ≤5 % | Φ20 mm |
| RLB550/450(355) | Single-wheel single-groove | Φ550 mm | 450 kW | 8 r/min | 400–2400 mm² | 220 mm | 800–2500 | ≤5 % | Φ22 mm |
| RLB600/450 | Single-wheel single-groove | Φ580 mm | 450 kW | 8 r/min | 380–8000 mm² | 315 mm | 800–2500 | ≤5 % | Φ28 mm |
| RLB700/550 | Single-wheel single-groove | Φ700 mm | 600 kW | 6.5 r/min | 600–4000 mm² | 320 mm | 1500–4000 | ≤5 % | Φ28 mm |
Notes: Output values are typical for oxygen-free copper. Actual performance depends on alloy, profile complexity and cooling parameters. Typical dimensional tolerance ±0.05 mm. All models produce soft, high-conductivity products suitable for direct use or minimal downstream processing.
Production Line Layout & Intelligent Control
The overall layout is compact and space-saving while covering the complete process from raw material feeding to finished product winding: pay-off system → wire straightener → continuous extrusion machine → cooling & anti-oxidation device → length counter → traction device → constant-tension take-up → receiving system. Full-process monitoring via PLC/HMI with remote module interface ensures intelligent management, minimal operator intervention and full production traceability — ideal for modern smart factories.
Primary Applications
- Copper Busbars for switchgear, transformers, and power distribution
- Copper Flat Wires and rectangular conductors
- Round Copper Wires and rods for electrical applications
- Complex Copper Profiles for new energy vehicles, solar inverters, and high-current systems
- Soft Copper Conductors requiring direct bobbin take-up and minimal post-processing
Built for Reliability
As a world-leading Continuous Extrusion Production Line supplier with approximately 50 % global market share in the continuous extrusion industry, RLB maintains a dedicated R&D team, independent laboratory for customer-specific material testing, and continuous annual machine improvements. Every RLB Copper Extrusion Equipment incorporates world-famous electrical components (Siemens, ABB), premium gearboxes and proven Conform CRE technology for exceptional longevity and stable performance.
Our 30+ professional maintenance engineers provide global on-site installation, rapid response, 24/7 online/remote support and comprehensive after-sales service — ensuring reliable quality, customized technical solutions and long-term customer partnership.
Frequently Asked Questions
What makes RLB Copper Continuous Extrusion Machines different from traditional copper drawing or hydraulic extrusion?
Traditional methods require multiple heating, drawing and annealing steps with length limitations and higher energy use. RLB Conform lines complete the process in one continuous step from oxygen-free copper rod to finished soft product, delivering higher yield, lower energy consumption and unlimited product length.
Which copper products can be produced on the RLB Copper Continuous Extrusion Machine?
High-conductivity oxygen-free copper busbars (flat or shaped), rectangular flat wires, round wires, hollow conductors and complex custom profiles up to very large cross-sections (8000+ mm² on larger models).
How much can I reduce material waste and energy costs?
Typical leakage rates of ≤3–5 % combined with the elimination of annealing and reduced handling deliver substantial material savings on expensive copper feedstock plus meaningful energy reduction versus conventional processes.
What after-sales and technical support does RLB provide globally?
More than 30 experienced engineers offer worldwide on-site installation, commissioning, maintenance and rapid response, plus 24/7 online/remote diagnostics and process optimization support.
Is the extruded copper suitable for high-performance applications such as EV inverters or transformers?
Yes. The dynamic recrystallization process produces soft, high-conductivity copper with excellent microstructural uniformity and bendability, ideal for demanding electrical and thermal applications.
Ready to upgrade your copper conductor production efficiency and quality?
Inquiry Now for factory-direct pricing, detailed technical drawings, process videos, sample trials or a customized quotation matched to your exact rod diameter, product range and throughput requirements. Our engineering team will respond within 24 hours with tailored technical solutions and layout recommendations.
Copper Continuous Extrusion Machine
RLB Copper Material Continuous Extrusion Machine (Conform-type) transforms oxygen-free copper rods into soft, high-conductivity busbars, flat wires and complex profiles in one continuous step. Low leakage (≤3–5%), energy efficient, precise (±0.05 mm). Global support & 24/7 service. Inquiry Now for custom quotation.
Product SKU: Copper Continuous Extrusion Machine1
Product Brand: RLB Machinery
Product Currency: USD
Product Price: Contact for Quote
Product In-Stock: InStock
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