In high-volume cable production, achieving tight compaction, uniform lay length, and maximum productivity is critical for overhead conductors, flexible cables, and armored power cables. The RLB Central Stranding Machine is a concentric-type (central payoff and cage rotation on the same axis) high-speed strander engineered for compacting round or sector-shaped copper and aluminum conductors.
With its unique design—bobbins located inside the cage, dual bobbins and dual flying wings per wire, and the ability to strand, rewind, or alternate operations—this machine delivers exceptional efficiency, reduced floor space, and lower operating costs while maintaining superior conductor quality.
Advanced Design & Operational Benefits
- Concentric High-Speed Architecture: Payoff center and cage rotation share the same axis for ultra-high rotational speeds (up to 550 rpm) and fast stranding with excellent compaction.
- Internal Bobbin Layout: No need to load/unload bobbins during production — saves storage space, reduces labor, and minimizes downtime.
- Dual Bobbin & Flying Wing System: Each wire uses two bobbins and two flying wings, enabling simultaneous stranding and rewinding or alternate operation for continuous high-output runs.
- Versatile Material Handling: Ideal for copper (1.5–5.0 mm), aluminum (1.8–5.0 mm), and aluminum alloy (1.5–5.0 mm) wires with loading weights up to 1200 kg.
- Compact & Flexible: Perfect for massive, same-specification production runs as well as compacting round/sector conductors, overhead lines, copper flexible conductors, cable screening, and armoring.
The result is tightly compacted, high-quality stranded conductors with consistent lay length, minimal waste, and significantly higher throughput than traditional planetary or cage stranders.
Technical Specifications
| Material |
Single Wire Diameter (mm) |
Max. Rotation Speed (rpm) |
Max. Line Speed (m/min) |
Max. Rewinding Speed (m/min) |
Loading Weight (kg) |
| Copper |
1.5 – 5.0 |
550 |
120 |
150 – 200 |
1200 |
| Aluminum |
1.8 – 5.0 |
550 |
120 |
150 – 200 |
360 |
| Aluminum Alloy |
1.5 – 5.0 |
550 |
120 |
150 – 200 |
360 |
Custom configurations and higher-capacity models available to match specific production needs.
Main Parts & System Integration
- Central payoff and concentric cage with internal bobbins
- Dual bobbins and dual flying wings per wire
- Precision die holder for round/sector compaction
- Meter counter and dual-wheel capstan
- Intelligent electrical control system
- Take-up bobbin or coiler (compatible with 1600/2240/3000 mm sizes)
Purpose: High-speed, high-compaction stranding of copper and aluminum conductors with continuous production capability and minimal downtime.
Primary Applications
- Compacting round or sector-shaped copper and aluminum conductors
- Manufacturing overhead conductors (AAC, AAAC, ACSR)
- Stranding copper flexible conductors
- Cable screening and copper tape shielding
- Steel wire and aluminum wire armoring
- High-volume production of identical-specification stranded products
The RLB Central Stranding Machine integrates seamlessly with pay-off, traction, and take-up systems, making it an ideal upgrade or addition to existing stranding and armoring lines.
Detailed FAQs – Answering Your Customers’ Real Questions
Q1: What is the main advantage of a Central Stranding Machine over traditional planetary stranders?
A: The concentric design with internal bobbin layout and shared-axis rotation achieves higher speeds (up to 550 rpm), better compaction, lower energy consumption, and significantly reduced floor space and labor.
Q2: Can this machine handle both copper and aluminum conductors?
A: Yes. It is fully versatile for copper (1.5–5.0 mm), aluminum (1.8–5.0 mm), and aluminum alloy wires, making it ideal for AAC/AAAC/ACSR overhead conductors.
Q3: Does it support continuous production without stopping?
A: Yes. The dual bobbin and dual flying wing system allows simultaneous stranding and rewinding or alternate operation for uninterrupted high-output runs.
Q4: What is the maximum loading weight and production speed?
A: Loading weight up to 1200 kg per bobbin; line speed up to 120 m/min with rotational speed of 550 rpm.
Q5: Is it suitable for sector-shaped conductors?
A: Yes. The precision die holder enables excellent compaction of both round and sector-shaped conductors.
Q6: Do you provide installation and training in Saudi Arabia?
A: Yes. Full turnkey installation, commissioning, operator training (English), and long-term technical support with local spare parts availability.
Inquiry Now
Contact our technical team today. Within 48 hours we will provide a detailed configuration proposal, ROI calculation, layout drawings, and reference cases from similar GCC projects.
Ready to upgrade your cable stranding efficiency?
Inquiry Now — Let us deliver the high-speed Central Stranding Machine that powers your conductor manufacturing success in Saudi Arabia and the GCC.
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