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Rigid Stranding Machine
This Rigid Stranding machine is mainly used for stranding & compacting Copper wire or Aluminum wire to make compacted stranded conductors.
It can also make Milliken Conductors with rotating pre-twisting device in HV cable production.
This Rigid stranding machine is suitable for below wire and cable production:
• Compacted stranded conductors
• Milliken (Segmented) conductors
• ASCR (Aluminum Conductor Steel Reinforced)
• Copper wire Screening / Armoring processes
Features of our Rigid Stranding Machine
1. Each rigid strander is driven by an AC motor independently.
2. Φ630 Rigid strander high speed running up to 240rpm.
3. Specially designed rigid frame and gear box.
4. Automatic and fast bobbin loading and unloading system: side trolly or side bottom is optional.
5. Full enclosed protective housing safety system is optional upon request.
6. Advanced electrical control system for intelligent high-efficient production.
Features of Individual Motor Drive type:
1. Each Stranding cage is driven by an individual AC motor.
2. No need transmission gearbox and ground shafts, rigid stranders run much faster.
3. Simplify the mechanical structure and reduce the maintenance difficulty.
4. Significantly reduce the Energy consumption and running noise.
5. Stranding pitch is stepless continuously adjustable.
Mechanical advantages of our Rigid stranding machines:
1. Rigid frame adopts screw & bolts assembling structure, which can effectively reduce the steel plate deformation and stress caused by welding, increase the overall rigid frame strength.
2. The center shaft is connected with the stranding capstan by expansion sleeves, Concentricity is better than welded structure to ensure high speed running.
3. The rigid cage adopts finish machining, with static balancing after assembly.
4. The main gear box is specially designed and improved for high-speed rigid stranders.
5. The base frame of our rigid stranders adopt thick rectangular tubes welded, which can increase the stability than normal welded channel steel.

Electrical advantages of our Rigid stranding machines:
1. Rigid stranding machine will stop at once there is any wire breaks, which bobbin wire breaks can be displayed on the HMI so that operator can solve the problem very quickly to continue production.
2. Single wire tension is controlled by Japanese proportional valve to keep constant tension from bobbin full to empty.
3. Grating encoder feedback to ensure transmission accuracy and stable stranding pitch.
4. SIEMENS PLC + HMI Electrical control system, PROFIBUS communication, each production parameter can be set on the HMI and the PLC will calculate automatically.
| Cage Bobbin diameter: | Φ500, Φ630, Φ710 |
| Single Wire diameter: | Al wire: 1.8–5.0 mm, Cu wire: 1.2-5.0 mm |
| Transmission type: | Individual motor drive / Ground shafts drive |
| Rotate speed: | 80 – 325 rpm |
| Bobbin Configuration: | 6B, 12B, 18B, 24B, 30B, 36B |
| Wire pay-off tension control: | Mechanical type, Pneumatic type, Hysteresis type |
| Bobbin clamping type: | Manual type, Pneumatic type, Electric motor type |








