Air casters is one kind of moving and handling tools, for moving and transport machines balanced and steadily. Air movers power source is compressed air, no need other power source, envirenment friendly. Air casters works perfectly when moving Air casters move heavy loads easily and flexible Air bearing casters easy to operate and more safety Air casters also called air bearing casters, air movers, air skates, air rigging systems, air load skates, air film transporters, air skids and so on. Air casters via air fluid film technology to move heavy duty loads with any shape. Air bearing casters are one of the most powerful machine moving tools in material handling marketplace, is easy and safety of lifting and moving machines up to more than 100 tons. Air bearing movers placed underneath heavy machines at some support points, when connected with compressed air, air skates lift the machine clear of the floor surface making it ready to moved to a different location. More information please feel free contact us. professionally service hope will get your satisfaction.