cargo trolley also named roller skids, transport dollies, moving skate, machinery skates, machinery rollers, bull dolly and so on names.
roller skids capacity from 3 tons to 1000 tons, in China, we also called it crawler type roller skids, via roller skids workers will moving your heavy duty equipment easily and economically.
Machinery skates and transport dollies is a good ideal for moving equipment, rigging heavy loads, like: power plants, aerospace, and other widely areas.
Regarding the machine rollers according the rollers wheels, we have three kinds: polyurethane rollers cargo trolley, steel wheels machinery skate, nylon wheels transport dollies. And we can make specially roller skids too if you want.
Machine skate is high capacity and low profile, low friction, easy to control. It is a high capacity machinery movement.

Shan Dong Finer Lifting Tools co.,LTD
Email:sales@cargotrolley.com
http://www.cargotrolley.com/