Double girder gantry crane carrying capacity, span, good overall stability, variety, but the quality of their starting weight compared with the same single-girder gantry crane to be bigger, the cost is higher.electromagnet overhead crane Depending on the main beam structure, it can be divided into box beams and trusses in two forms. More commonly used box structure.
1, hook single girder gantry crane project is mainly applied to roads, bridges, power plants, factories and other construction, general handling and lifting handling operations.
2, the whole truss structure, light weight, wheel pressure is small, reliable performance.
3, the machine uses a single main beam, main beam on both sides of the car under the rope, lifting the shape of larger items.