Caster for moving extreme loads of over 1800 kg per unit ie 5400 kg over 4 wheels (the 4th is not counted).
The body of the wheel is in cast iron and the tyre in polyurethane for moving very heavy loads over smooth surfaces.
This model is particularly tough and will stand up to robust use in most environments. These wheels include a greaser to improve length of swivel over the long term. The thickness of the steel is 15 mm, the perfect dimension for such heavy loads.