A cable ramp has two jobs at once: it carries whatever crosses it and it protects the cable held inside. The load rating is what ties those two together, and getting it wrong in either direction is costly. Underspecify and the ramp crushes, overspecify and the site pays for strength it never uses.
How Load Ratings Are Set
Load ratings are expressed by what the ramp is expected to carry, from foot traffic through carts and trolleys to cars, vans and heavier plant. The rating reflects both the material of the ramp and the way the channel is supported under load. A ramp rated for a forkluit is built differently from one rated for a trade-show crowd even when the two look similar.
Pedestrian Traffic
For foot traffic the main concerns are surface grip, edge profile and whether the ramp can be seen and crossed safely. A gentle edge and an anti-slip surface matter more here than raw strength. Pedestrian ramps are common at events, in retail spaces and along temporary cable runs through public areas.
Carts and Trolleys
Casters concentrate load over a small area and punish a soft ramp surface more than a flat shoe does. Where trolleys, pallet trucks or service carts are expected, the ramp needs a surface that resists indentation and edges that a caster can climb without jolting the load. This sits between pedestrian and vehicle duty in most specifications.
| Traffic Type | What the Ramp Must Do | Typical Setting |
|---|---|---|
| Pedestrian | Grip and safe edge profile | Events and retail floors |
| Carts and trolleys | Resist indentation from casters | Warehouses and service routes |
| Vehicles | Carry axle load without crushing | Yards and temporary crossings |
Vehicle Crossings
Vehicle ramps carry axle load and must protect the cable through repeated crossings. Height, channel size and material all follow from the vehicle weight and the crossing frequency. A ramp used for occasional van access is specified differently from one on a haul route that carries loaded trucks every hour.
Specifying the Rating
State the traffic type, the heaviest axle or wheel load and the crossing frequency. These three points let a supplier match the ramp to the site rather than supplying a general-purpose unit that fails early or costs more than the job needs.