MG Type Rail Lifting Double Beam Gantry Crane With Hook 30Ton . Product Description . MG Type Rail Lifting Double Beam Gantry Crane is a double main beam general gantry crane, also known as A type double beam gantry crane, which isposed of bridge frame, truck operating mechanism, trolley, electrical equipment and other parts.32 Ton Stone Field Use European Type Double Beam Electric Gantry Crane. Product Description. 32 Ton stone field use european type double beam electric gantry crane is of foldable legs easy assembly, easy installation, labor-saving. It is of advanced technology, whose design is based on international standard: FEM (Europe), DIN (Germany), ISO ...Box type 30 ton 50 ton 70 tons Double Girder Gantry Crane Construction Building. U Type Double Beam Hook Gantry Crane is a kind of rail mounted crane used to offload, stack and load 20ft, 40ft, 45ft ISO standard containers. Its provision of power is offered by cable reel. The crane contains three mechanisms: hoisting, trolley travelling and ...A type double girder gantry crane: MGH Double Girder Gantry Crane mainly consists of strong bridge beams,trolley-travelling mechanism,crab and electric appliances,and could be classified into several working duties,A5,A6,A7,according to the working frequency and pure working s lifting tools can be hook, grab or permanent magnetic.