Step-frame Low Loader Trailers
Semi-low loader trailers
The ‘knife and fork’ of the construction and contractor’s plant-mover.
Equipped with hydraulic ramps and winches to make plant and vehicle transportation safe and straightforward. Ideal for medium-weight loads such as 13- and 24-tonne excavators, dump-trucks, wheeled shovels, crushing plants, topsoil and aggregate screeners, larger agricultural tractors and implements, piling rigs and bulldozers. Their lower-than-standard carry decks mean that over-height items can be moved.
We’ve leveraged increased productivity by coupling these trailers to HIAB tractor units and adding winches and removable bolsters, to facilitate the delivery and self-offloading of large structural elements, such as steel or timber roof trusses, plus large diameter coils of plastic pipe that needs to stand vertical for transport.
Their versatility is such that we’ve shifted all sorts of weird and wonderful loads over the years.

Our semi-low loader trailers in action
Read how the Southdown Truck & Crane team delivered a fishing vessel from Sovereign Harbour in Eastbourne to Brighton Marina, all thanks to one of our low loader trailers.
Vehicle specifications
| KING Semi Low Loader | Body detail |
|---|---|
| Ramps: Anderson fed electro hydraulic | Drawbar: Standard 5th wheel coupling |
| LEZ/FORS: Yes | Floor construction: Hardwood |
| Winch: Hydraulic – on request | Warning beacons: Yes |
| Axles: 3 x – 235 Twins | Twist locks: Yes |
| Ramp width adjustment: No | Ferry lashing points: Yes – on request |
| Bed height from floor: 1.10 m | Fall arrest: Yes |
| Payload: 28,000 kgs* | *Subject to appropriate tractor |
24/7 availability
Our commitment to providing comprehensive and flexible solutions is further reflected in our ability to deliver equipment and services at any time of day or night. This 24/7 availability underscores our dedication to meeting the diverse needs of our clients, regardless of the project’s scale or complexity.




