How to quickly install cable tray hangers

Use pre-cut rods, proper spacing, and innovative connectors like Hermi® Fast Joint to install cable tray hangers efficiently while maintaining safety.

Plan and Prepare

Before installation, review your approved shop drawings to determine the tray route, dimensions, support system, and number of layers. Ensure all materials, hangers, rods, and connectors are available on-site. Check for potential clashes with HVAC, fire protection, or plumbing systems to avoid delays during installation.

Choose the Right Hangers and SupportsCenter-hung supports allow cables to be deposited from both sides, speeding up installation. Load capacity: Each hanger typically supports 318–340 kg (700–750 lbs), so select hangers that exceed your expected load for safety. Spacing: For heavy power cables, place hangers every 1–1.

5 meters; for lighter cables like data or telecom, spacing can extend up to 3 meters.

Time-

Saving Installation TechniquesPre-cut rods: Cut support rods to the required length before installation to reduce on-site adjustments. Beam clamps and lock nuts: Use beam clamps for quick attachment to structural elements and secure with lock nuts to prevent movement. Fast connectors: Products like Hermi® Fast Joint allow tray connections without bolts and nuts, reducing connection time from over 2 minutes to about 1 minute per joint.

These connectors are tool-free, though a screwdriver may be used to lock pins at the final step.

Installation Steps

Mark the route on walls or ceilings according to your plan. Install hangers at the calculated spacing, ensuring they are level and aligned. Attach cable trays to the hangers using clamps, fast joints, or bolts as appropriate.

Check alignment and level continuously to prevent sagging. Adjust hangers if necessary. Verify load distribution: Ensure trays are supported evenly to avoid bending or structural stress.

Additional Tips

Match the metal finish of hangers and trays to prevent corrosion, especially in wet or coastal areas. Maintain vertical clearance between multiple tray layers (e.g., 30 cm) to avoid interference between power and data cables. Plan for future cable additions by leaving extra capacity and spacing to reduce rework.

By combining proper planning, pre-cut supports, correct spacing, and fast connectors, you can significantly reduce installation time while ensuring a safe and durable cable tray system.