L type single main beam electric hoist door crane

Single main beam cantilever gantry crane structure is simple, manufacturing installation is convenient, its own quality is small, the main girder is more than the rail box frame structure. The overall stiffness is weaker than the double main gantry crane. So when lifting weight Q S t, 50 or less span 35 m or less, can use this form. A single main door beams crane gate legs have L type and C type two kinds of forms. L make convenient installation, good force, its quality is small, but, lifting the goods through the leg space is relatively small. C leg to make tilt or curve, purpose is to have a larger transverse space, in order to make the goods smoothly through the leg.