The electric scraper cable is a special-purpose cable designed exclusively for electric scrapers (also known as electric LHDs - Load-Haul-Dump machines), featuring the following characteristics:
The outer sheath is typically made of high-performance materials such as polyurethane (PUR/TPU). This enables the cable to withstand frequent movement in roadways and direct contact with harsh environments (e.g., iron ore), ensuring long-term durability.
The conductor is constructed by stranding multiple fine bare copper wires. Combined with tensile designs like high-strength fiber braided layers (e.g., aramid fiber or Kevlar fiber) and spiral metal components, it achieves a tensile strength of up to 35N/mm². This effectively prevents core wire breakage when the cable is dragged during equipment operation.
Torsion-resistant designs (e.g., adding an aramid braided layer between double sheaths) are adopted. For instance, the electric scraper cable produced by Shanghai Shuangjian Cable Technology Co., Ltd. leverages this structure to effectively prevent twisting and deformation of the cable during winding. It can adapt to the torsional stress generated when the electric scraper moves forward, translates, or retracts frequently.
It possesses properties such as acid and alkali resistance, corrosion resistance, cold resistance, and flame retardancy (optional). These features allow the cable to maintain stable performance in harsh environments like high humidity, heavy dust, and low temperatures, complying with safety standards for mines and similar workplaces.
- When installing on a winch system, the winding direction must align with the equipment’s movement direction.
- Maintain an appropriate bending radius and avoid direct contact with sharp objects.
- Keep the cable in a naturally suspended state and use dedicated fasteners to maintain a reasonable spacing between cables.
- For connection points, use specialized connectors that meet the required protection level (e.g., IP67) and ensure proper sealing to prevent dust or moisture ingress.
- Regularly inspect the cable’s appearance, focusing on whether the sheath surface is damaged or the bent parts are deformed.
- Use neutral cleaning agents for cleaning; avoid using corrosive chemicals.
- Prevent prolonged exposure to direct sunlight or extreme temperature environments (both high and low), as these can degrade the cable’s material properties.
- Before long-term storage, thoroughly clean the cable and perform moisture-proof treatment (e.g., wrapping with moisture-proof film) to avoid mold or corrosion.
