Festoon Cable

Festoon cables act as vital wiring components for material handling facilities and automated industrial equipment. They supply power and transmit control signals to machinery moving back and forth along fixed guide rails. Different from cables developed to resist torsional rotation, festoon cables are specially engineered to adapt to rolling bending movements unique to festoon systems. During operation, the cables undergo repeated bending and straightening while bearing inherent tension.

Festoon cables endure multiple types of persistent mechanical loads:

Rolling Bending Cycles: The suspended cable forms curved arcs during operation and stretches straight when gathered at one end of the track. This movement runs continuously around the clock.

Surface Abrasion: The outer sheath constantly rubs against festoon trolleys and neighboring cables inside the system, demanding robust wear resistance.

Tensile Force: The cable needs to sustain its own weight across the span between trolleys. Excessive stretch will lead to dragging, jamming and mechanical failure.

Complex Environmental Conditions: Most units are deployed outdoors or inside vast industrial workshops. They confront UV irradiation, ozone ageing, varying temperatures, as well as potential contact with grease and industrial chemicals.

Conductors: Ultra-fine stranded copper conductors with high flexibility are adopted. The optimized stranding structure enables free relative movement of copper strands, evenly dispersing bending stress and avoiding metal fatigue and conductor fracture.

Insulation Layer: Flexible specialized materials including Thermoplastic Elastomer (TPE) and Ethylene Propylene Rubber (EPR) replace ordinary PVC. These materials maintain pliability under low temperatures and resist cracking after millions of bending cycles.

Outer Sheath: The sheath largely determines the cable’s service lifespan. Polyurethane (PUR) serves as the mainstream option, delivering outstanding abrasion performance far exceeding PVC. It also possesses reliable resistance against oil, chemical erosion and tearing damage.

Internal Layout: All inner cores are twisted with balanced lay length to avoid distortion and bulging during repeated flexing. Certain specifications adopt non-absorbent fillers such as polypropylene yarn, stopping moisture diffusion even if the outer sheath suffers minor damage.

Overhead travelling cranes and gantry cranes

Stackers and bulk material reclaimers

Shipbuilding yard lifting equipment

Automated warehouse storage systems

Manufacturing production lines with mobile machinery