Head to head
Ifor Williams HB511 vs Indespension Alumax 10' x 5'7" Plant Trailer
The Indespension Alumax 10' x 5'7" Plant Trailer is 410kg lighter empty and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB511 weighs 410kg more empty.
- Gross weight: the Indespension Alumax 10' x 5'7" Plant Trailer is rated 800kg heavier gross.
Specifications side by side
| Ifor Williams HB511 | Indespension Alumax 10' x 5'7" Plant Trailer | |
|---|---|---|
| Gross weight | 2,700kg | 3500kg |
| Unladen weight | 1,000kg | 590kg |
| Internal length | 3.52m | - |
| Internal width | 1.79m | - |
| Brakes | Braked | - |
| Payload | - | 2910kg |
| Internal size | - | 3.05 x 1.70 |
| Bed height | - | 367mm |
Sources: Ifor Williams HB511, Indespension Alumax 10' x 5'7" Plant Trailer. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB511 if...
The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.
Listed by
- Trek-Trailers Suffolk - Bury Saint Edmunds
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the Alumax 10' x 5'7" Plant Trailer if...
- you want one that is 410kg lighter empty
- you want one that is rated 800kg heavier gross
A lightweight plant trailer with a low bed and shallow ramp angle, aimed at mini digger hire and contractors who want a high payload from a 3.5 tonne gross weight.
Full Alumax 10' x 5'7" Plant Trailer specifications →Common questions
What is the difference between the Ifor Williams HB511 and the Indespension Alumax 10' x 5'7" Plant Trailer?
The Indespension Alumax 10' x 5'7" Plant Trailer is 410kg lighter empty and is rated 800kg heavier gross. The Ifor Williams HB511 is a two-horse trailer, twin axle, wider body; the Indespension Alumax 10' x 5'7" Plant Trailer is a 10 ft x 5 ft 7 in lightweight 3.5 tonne plant trailer.
Which is lighter, the Ifor Williams HB511 or the Indespension Alumax 10' x 5'7" Plant Trailer?
The Indespension Alumax 10' x 5'7" Plant Trailer. It is 410kg lighter empty than the Ifor Williams HB511.
Can I tow the Ifor Williams HB511 or the Indespension Alumax 10' x 5'7" Plant Trailer on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
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