Technology Empowers Heavy-Load Operations | Coiled Cable: High Tensile and Bending Resistance, Strengthening Mobile Power Supply Security

Coiled cable (commonly known as reel cable)is a specialized flexible cable designed to be wound around cable reels and subjected to repeated processes of winding, stretching, and bending in equipment applications, serving to power mobile devices and transmit signals. With four core performance characteristics—high flexibility, exceptional tensile strength, excellent bending resistance, and superior aging resistance. it has become the "lifeline" for stable power and signal transmission in heavy-duty mobile environments.

Below is a detailed description of the reel cable:

I.Core Product Structure:

Conductor: Multi-strand flexible copper wire (typically tin-plated for corrosion resistance).

InsuInsulation layer：rubber, resistant to bending and high temperatures.

Fill/Draw strength: Kevlar or steel wire, resistant to tensile deformation.

Sheath:  PUR/chloroprene rubber, wear-resistant and oil-resistant (high-end double-layer sheath).

II. Common Types:

By shape:  round reel cable, flat reel cable (space-saving).

By function:  Power cables, control cables, and composite power-control-fiber optic cables.

By voltage:  Low voltage 0.6/1 kV, Medium voltage 6/10 kV.

III. Core Features (Key Differences from Conventional Cables):

Ultra-high flexibility:  Composed of multiple fine copper wires (0.15–0.4 mm) twisted together, resistant to breaking even after repeated bending.

Superior tensile strength:  Featuring a Kevlar/wire tensile layer that withstands dragging forces.

Wear-resistant and oil-resistant:  The outer layer is made of PUR/chloroprene rubber, offering tear resistance, oil resistance, and aging resistance.

Long bending life:  3–5 times longer than conventional rubber-sheathed cables, ideal for frequent deployment and retraction.

Environmental durability:  -40°C to +100°C, waterproof, flame-retardant, and UV-resistant.

IV. Scenario Adaptation:

Port:  Container cranes, gantry cranes, ship loaders  

Mine:  Pile drivers, tunnel boring machines, overhead cranes   

Factory:  Cranes, electric hoists, conveyors   

Others:  Tunnel boring machines, stage lifting systems, intelligent warehousing systems

In simple terms, while conventional cables are "fixed wires that remain stationary" but reel cables are "flexible, durable wires designed for heavy-duty equipment that operates in constant motion". As industrial intelligence and green transformation accelerate, market demand for customized, highly reliable, and long-lasting reel cables will continue to grow. Industry players will deepen their efforts in material innovation and structural optimization, focusing on enhancing key performance metrics such as tensile strength, bending life, and environmental adaptability. This will enable higher-quality products to drive high-quality development in sectors like ports, mining, and industrial automation, providing safer, more efficient, and cost-effective solutions for heavy-duty mobile power supply applications.