10 ton plain beam trolley specification plain trolley Introduction: 1.Plain trolley should be formed a complete set with chain hoist or other lifting machines. 2.There are ball bearings are in layed in the wheels of the plain trolley. 3.The plain trolley is a lifting machine that has high efficiency in operation with small hand-pull/push force. 4.Plain trolley should be fit on the bottom flange of I-beam to compose a running lifting trolley. GCT-A Plain Trolley