Mg Box Type 20 Ton Double Girder Gantry Crane

Products Description
Double girder gantry crane is a variant of the bridge crane . Mainly used for outdoor cargo yard, yard goods, bulk cargo loading and unloading operations. Its metal structure shaped like a door frame, carrying the main beam install two feet down, you can walk directly to the track on the ground, both ends of the main beam may have overhanging cantilever. Double girder gantry crane with a high utilization of space, large operating range, wide adaptation, versatility, etc., are widely used in the port yard.

Application 
Double girder gantry cranes are widely used in the construction of various types of open space, such as building and bridge construction site in the back room of precast games. Industrial equipment installation site of the device stacking, assembling prefabricated parts venues. Others, such as in railway stations, docks, yard, hydropower stations, shipbuilding industry also has a wide range of applications.
In loading and unloading, double girder gantry crane can lift iron or steel blocks, cylinders and so on. It is very convenient for application in loading, unloading, and moving. Double girder gantry crane are the most ideal lifting facility for factories, docks, warehouses and transportation.

Design and produce
The profiles of the main girders of this double girder gantry crane are optimally produced, using a integrated technology which is weldless , so that maximum performance with a minimum of deadweight can be achieved.
The double girder gantry crane produced is in compliance with the national standard. The design is reasonable, the machines are of good quatity, the structure is advanced, the appearance is beautiful and the size is compact, the weight is light, and the parts have high strength, big intensity, and all these make it safe, durable. And the products are popular domestic and abroad.
We are able to design and product non-standard hoisting equipment in accordance with special requirements in span.

Mobile double girder gantry crane 20 tonis mainly consisting of the skeleton structure, lifting and cross traveling 
mechanism, long traveling mechanism, cabin and electrical control system. The trolley can move 
horizontally on a pair of rails on the beam. 
The beam can be box or trussed type in according to your working environment situation. 
pressure is less than 125Pa, or more,trussed type gantry crane is always using in outdoor)
Cabin used for operating, with seats inside. Floor adopts insulation pads and toughened glass
for windows; extinguisher and fan are equipped. Other accessory equipment like air-condition, buzzer, interphone and etc. can be configured according to our client's request!
The length of cantilevers can be designed to meet the working demands