Cable Ladder
What is Cable Ladder？
The ladder cable tray consists of two main beams and horizontal crosspieces on both sides. It is shaped like a ladder and provides extremely high load-bearing capacity and heat dissipation performance. Its open structure is suitable for large-diameter cables (such as high-voltage power cables) or scenes with a large number of cables. It is commonly found in power plants, petrochemicals, and large industrial facilities. The ladder rack is usually made of galvanized steel or aluminum alloy, which is durable and easy to maintain, but has poor dust resistance. Its advantages are strong load-bearing capacity and excellent ventilation. It is the preferred solution for laying heavy-load cables, but it is necessary to install protective covers in dusty environments.
Key Structural Features
Side Rails: Typically made of high-strength steel or aluminum alloy for longitudinal support.
Rungs: Metal crossbars spaced 150-300mm apart to secure cables while ensuring optimal ventilation and heat dissipation.
Core Advantages
Superior Heat Dissipation: 60% better airflow than enclosed trays, preventing cable overheating.
High Load Capacity: 2-3 times stronger than tray-type cable trays, ideal for large cables.
Flexible Installation: Supports horizontal, vertical, or angled layouts with adjustable rung spacing.
Easy Maintenance: Open structure allows quick inspection and cable management.
Comparison with Other Tray Types
| Feature | Cable Ladder | Trау-Type | Channel-Type | Wire Mesh |
| Structure Design | Open ladder, wide rung spacing | Shallow tray with low edges | Fully/semi-enclosed with covers | Metal mesh, fully open |
| Load Capacity | ★★★★★ (100-500kg/m) | ★★★☆ (≤50kg/m) | ★★★ (requires reinforcement) | ★★ (≤30kg/m) |
| Heat Dissipation | ★★★★★ (natural ventilation) | ★★★ (moderate ventilation) | ★★ (requires vents) | ★★★★★ (fully open) |
| Maintenance Ease | Requires regular dust removal | Easy inspection | Requires cover removal | Direct access, most convenient |
| Typical Applications | Power plant HV cables, port heavy equipment | Commercial building power distribution, industrial plants | Chemical/medical clean areas, sensitive data center zones | Data center low-voltage, telecom rooms |
Comparison table of cable ladder selection of different materials
| Feature | image | Characteristics | Optimal Environment | Advantages | Limitations | Typical Applications |
| Powder-Coated Cable Ladder |  |
Steel base + color coating | Dry indoor areas | Aesthetic, color options | Scratch-prone, fades | Malls, office buildings |
|
Galvanized Cable Ladder |
 |
Hot-dip galvanized | General industrial zones | Cost-effective, rust-resistant | Rusts if coating damaged | Factories, warehouses |
|
Fire-Resistant Cable Ladder |
 |
Steel + fireproof layer | Fire-critical zones | 1hr+ fire resistance | Heavy, expensive | Subways, hospitals |
|
Hot-Dip Galvanized Cable Ladder |
 |
Fully galvanized | Humid/mildly corrosive | Superior rust protection | Zinc layer peels at high temp | Port facilities |
|
Zn-Al-Mg Cable Ladder |
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Zn-Al-Mg alloy | Highly corrosive areas | Self-healing, extreme corrosion resistance | Very expensive | Chemical plants, offshore platforms |
|
Stainless Steel Cable Ladder |
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304/316 stainless | Extreme environments | Acid/alkali resistant, long lifespan | Extremely costly | Nuclear plants, pickling workshops |
|
Aluminum Cable Ladder |
 |
Aluminum alloy | Lightweight requirements | Lightweight, maintenance-free | Limited load capacity | Data centers |
|
FRP Cable Ladder |
 |
Fiberglass composite | Strong acid/alkali areas | Insulating, rust-proof | UV-sensitive | Electroplating plants |
|
Polymer Cable Ladder |
 |
Engineering plastic | Temporary sites | Lightweight, insulating | Flammable, low load | Temporary projects |
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