Double girder gantry crane carrying capacity is strong, the span is large, the overall stability is good, and many varieties can be chosen.Both sides of the main girder can be designed with either side cantilever, side cantilever or no cantilever girder.There are currently three control methods, including control, cockpit control and remote control.
According to the difference of the door frame, there are A-type double girder gantry crane and U-type double girder gantry crane.
According to the structure of the main girder, it can be divided into two forms: box type and truss type.Generally, the box type double girder overhead crane with advantages of welded structure, stable operation, good wind resistance and safety device of all parts of the structure are widely used.
1. The structure of the main beam of double beam gantry crane adopts a kind of unsoldered integrated technology, which makes the structure more reasonable.
2. The design is reasonable, the machines has good quality, the structure is advanced, beautiful appearance and compact size, light weight, and high strength parts, big intensity, and all these make it more safe, durable.
Double girder gantry crane has high space utilization, wide operating range, a wide range of adaptability, versatility, etc., is widely used in industrial equipment, assembly shop, station, wharf, yard, etc..
The safety device are not only the electric protective devices or alarm bell but other equipments are necessary to guarantee the normal operation of crane and avoid the personal casualty and mechanical damage.Such as:
1. Overload protection
2. Crane switch and travel end switch
3. Lifting motor with thermal protection
4. Rubber buffers, protective earthing, emergency switch
5. All cranes must be pre-assembled and tested before delivery, and provide test proof.