The manual trolley is easily attached to beam flange and can quickly turn beam into overhead crane, single-girder crane or jib crane by equipping with electric chain hoist or manual cable hoist. These beam trolleys can effortlessly move hoists along beams and are widely used in factories, mines, loading docks, warehouses, construction sites, and various applications including mechanical processing, injection molding, die-casting, stamping, mold assembling, etc.