Housing thick steel plate.
Wheels welded steel body and Extrathane® tread.

Housing press formed.
Swivel caster housing with strong fork and base plate, very robust center pin bolted and secured. The swivel head is additionally reinforced with specially formed and hardened bearing shells.

These casters are particularly shock and impact proof. The treads resist abrasion and are elastic and low-noise. Wheel axle bolted.