Zero Back-Twist Technology: Preserving Flexibility in Milliken & Compact Conductors Planetary Stranding Lines

Zero Back-Twist Technology: Preserving Flexibility in Milliken & Compact Conductors Planetary Stranding Lines

Core Structure and Working Principle

Pay-off System: Comprises a central pay-off stand and multiple planetary cradles; these support the cable reels and rotate with the stranding cage while utilizing a gear mechanism to achieve precise back-twist.

Main Stranding Cage: Constructed using thick-walled seamless steel pipe and supported by large-scale bearings, ensuring high rigidity and smooth operation; certain models support modular tandem configurations.

Control System: Modern units typically employ PLC and touchscreen controls combined with variable-frequency drive (VFD) motors to enable stepless lay-length adjustment and tension synchronization.

Key Application Areas

Power Transmission Cables: Production of high/medium-voltage power cables, Aluminum Conductor Steel Reinforced (ACSR) cables, and large-cross-section Milliken conductors.

Data and Communication Cables: Manufacturing of high-speed data cables—such as Ethernet, USB 3.1+, and QSFP—to ensure signal integrity and minimize crosstalk.

Specialty and New Energy Cables: Suitable for medical instrument cables, robotic drag-chain cables, automotive wiring harnesses, and high-current cables for EV charging stations.

Core Equipment Advantages

100% Back-twist Process: Effectively eliminates residual torque and prevents wire deformation, significantly enhancing the flexibility and service life of the finished product.

Adaptability to Complex Structures: Capable of handling high core counts, shaped conductors, and composite shielding structures, ensuring tight stranding layers and superior roundness.

Efficient Integrated Production: Allows for the in-line integration of processes such as taping and braiding, reducing the handling of semi-finished products and boosting overall production efficiency.

Electric control system:
The electric control part is composed of power cabinet, operation cabinet, touch screen, etc., and there are corresponding control buttons on each unit
The electrical cabinet is designed with good mechanical properties and dustproof performance, and is equipped with a proper amount of forced ventilation fans.
The power supply is: 3-wire 5-phase system, 380V (±10%) 50HZ.
Total installed power: 230KW
Motor protection function: The electrical control circuit is designed with: phase loss, overload, and overheat protection functions to prevent motor damage.
The alarm fault information can be queried on the touch screen, and it has the functions of alarm fault and production process data storage.
Operating system: It can view and modify various parameter settings in the production process in real time, such as pitch, production speed, current working status and other information.
All drive motors are designed with encoders and the encoder feedback operates in a closed loop control system.
The unit adopts PLC unified coordination control operation. It adopts touch screen HMI to operate. Simple and convenient operation

Safety protection system
Main stranding cage: Double-sided wall safety net (porous plate material)
Transmission and other parts: sheet metal protective cover

Color:
Rotating Components: RAL 1028
Main Body: RAL 5015 (Phthalo Blue)
Base Frame: RAL 9017 (Black)
Or customized