Brief Introduction  Semi Gantry Crane can be divided into Three types, single girder semi gantry crane, double girder truss type semi gantry crane, and double girder box-type semi gantry crane. This kind of crane is composed of gantry frame, main girder, legs (two sets), slide sill, lifting mechanism, travelling mechanism, and electric box. Widely used … Continue reading Semi-Gantry Crane