Ladder Type Cable Tray Stainless Steel Ladder Cable Tray Aluminum Alloy Cable Ladder Fire Resistant Ladder Cable Tray

1. Product Overview

Ladder Type Cable Tray (also called Cable Ladder) is composed of two longitudinal side rails connected with evenly spaced transverse rungs, featuring an open ladder-shaped structure without solid base plate. It is the mainstream heavy-duty support for large-section high/low voltage power cables. Equipped with full modular fittings including elbows, tees, splice plates and supports, it is widely used for long-distance power cable routing.

2. Main Materials & Surface Treatments

1. Hot-dip Galvanized Ladder Tray
Made of Q235 carbon steel with full hot galvanizing coating. Cost-effective for ordinary factories, basements and dry outdoor environments.
2. Fire Resistant Powder Coated Ladder Tray
Steel substrate sprayed with intumescent fire retardant coating, fire resistance rating from 0.5h to 2h, complying with fire codes for power tunnels and fire circuits.
3. 304 / 316 Stainless Steel Ladder Tray
Natural anti-corrosion stainless steel with superior chloride & acid resistance, ideal for coastal docks, chemical plants, sewage treatment and offshore wind projects.
4. Aluminum Alloy Ladder Tray (6063-T5 / 5052 Marine Grade)
Only 1/3 weight of steel tray, self-passivation anti-rust and excellent heat dissipation. Preferred for high-rise buildings, photovoltaic stations, ships and lightweight overhead installations.

3. Core Structural Features

1. Fully open hollow rung design for maximum ventilation
Unobstructed air flow rapidly dissipates heat generated by heavy-current cables, effectively preventing insulation aging of high-voltage wires.
2. Light weight & lower material cost
No solid base plate saves raw materials; easy manual transportation and lifting to cut construction time.
3. Unobstructed maintenance & cable adjustment
Open top & bottom allows free adding, removing and inspection of cables without disassembling the whole tray, convenient for later capacity expansion.
4. Self-cleaning design against dust & water
Dust and rainwater fall directly through gaps, avoiding dirt & water accumulation to slow down corrosion in humid & dusty workshops.
5. High load-bearing capacity
Thickened side rails and evenly distributed rungs enhance bending resistance. Reinforced long-span type supports 3–6m unsupported span to reduce bracket quantity.

4. Product Advantages

1. Superior heat dissipation outperforms solid trough and perforated tray types, reducing power loss and extending cable service life.
2. Less raw material consumption lowers total cost of purchase and installation labor.
3. Self-draining & dust-free structure fits high-temperature, humid and dusty working conditions.
4. Stable load capacity for dense laying of large cross-section high-voltage power cables.
5. Complete modular fittings support horizontal, vertical, turning and reducing wiring in all scenarios.

5. Standard Specifications

Size (Width × Height mm): 100×50, 200×100, 300×100, 400×150, 600×200, 800×200
Standard wall thickness: 1.0–2.5mm; standard rung spacing: 200/300mm. Custom width, thickness and span length available on request.

6. Application Range

Power plants, substations, high-temperature smelting workshops, large industrial factories, municipal utility tunnels, photovoltaic & wind power stations, coastal docks, metro tunnels, commercial power shafts and light-corrosion chemical plants.

7. Matching Accessories

Splice plate, horizontal elbow, vertical elbow, tee joint, reducer, support bracket, upright post, grounding jumper, optional matching cover.