Air caster also named air caster load module systems,heavy duty air skates,air trailer,air skate on air,air bearing kit, and so on names. Air rigging systems capacity from 10 tons to 48 tons, more or less capacity can be customized as demand. Air caster load module systems have follow advantage when moving and material handling works: 1).have lower friction. Easier to handling equipment. 2).Highly maneuverable.Via air supply,it is very easy to control the direction. 3).The height of the module is very low, it is just 50 mm, it is light-hearted to lift the equipment on it. 4).No pollution. Will not come out any pollutant, very environmental protection. Regarding air casters applications, air rigging systems manual instruction, air skates price list, air bearing kit details, please kindly feel free contact with us. Professionally service hope will get your satisfaction. Shan Dong Finer Lifting Tools co.,LTD Skype: faithjiang888 Email: info@cargotrolley.com Website: http://www.cargotrolley.com/