Steel chain roller skids also know as crawler type roller skids,capacity of one unit can be reach 1000 tons. Suitable for moving and handling heavy duty equipment and machineries. Roller dollies structure is simple and easy to operate. Capacity from 2.5 tons for one unit to 60 tons. More roller dollies pictures please via our website: 3w dot cargotrolley dot com. Rigger skates also know moving rollers, roller skids, roller dollies, moving dollies, steel chain roller skids, and so on names. Roller skates can go straight, and can swiveled too. Rotating dollies also produced by our company Shan Dong Finer Lifting Tools co.,LTD. Rotating dollies every wheels can be veered for 360 degree easily and flexible. Roller dollies also called moving rollers, moving dollies, machinery skates, roller skates, rigger skates, moving skates and so on names. Machine skate used on heavy duty equipment moving and factory relocated. Machine skate is easy to handle and effortless. Will save your time and cost, improve produce efficiency. Regarding Steel chain roller skids applied on moving and handling works, Roller dollies structure and pictures, Rigger skates instruction and price list, please kindly feel free contact with us. Professionally service hope will get your satisfaction. Shan Dong Finer Lifting Tools co.,LTD Skype: faithjiang888 Email: [email protected] Website: http://www.cargotrolley.com/