20 Ton Double Girder Gantry Crane with Cabin for Precise Manufacturing

Double girder gantry cranes normally with hook are used for loading, unloading and moving materials which adopt latest technologies and optimum  grade raw materials. Double girder gantry cranes are designed with fixed rails on ground and different height legs traveling in both directions, trolley mechanism running on double beam, hoisting mechanism lowering and raising loads. Our double double girder gantry cranes can also carry out some special operations by equipped with various special lifting tools such as grab or electromagnetic chunk (lifting magnet), or simultaneously use with the two or three.

 Double girder gantry cranes are composed of gantry, crane crab, trolley traveling  mechanism, cab and electric control system. Outdoor operation gantry cranes are also equipped with rail clamp, weight restriction device, limit device, anchor  device, anemometer, corrective devices as required. These components’  advantages are all introduced in the back. What’s more, most gantry cranes’  installations are outdoors and open space applications.

 Double girder gantry cranes are adapted to applications where overhead runways would  be not possible, costly to erect and difficult to maintain in alignment. A gantry crane can be moved to new locations with less trouble and expenses than an overhead crane and its runway where the installation is only temporary. It is similar to a top running overhead crane except the bridge which is supported by legs and the rails are at ground level. It is an excellent alternative for permanent overhead travelling cranes inside of  factories (indoor overhead cranes), the additional leg structure makes the  crane more expensive but this is offset by the considerably cheaper low level rails, also it is comparatively easy and inexpensive to extend and increase the  length of the runway/track thus makes the advantage more apparent, working  area of cranes then enlarged and enable them particularly suitable to work for large outdoor stockyards. General speaking, it minimizes investment of new building by eliminating need of increased foundational and structural considerations. What’s more, safety hazard arising from travelling on low level rails is taken care of easily compared to the obstruction caused by the building structure columns. It also can be disassembled and moved to a new location easily.

 Compared with single girder gantry cranes, double girder gantry cranes have more heavy capacity and higher work duty, and long reliable service for all applications is provided. More details about single girder & double girder crane, Please keep us informed. Double Girder Gantry Cranes are divided into several types according to its usage: U-type double girder gantry crane, A-type double girder  gantry crane, Truss type double girder gantry crane. They can be made into Full double girder gantry cranes or Semi double girder gantry cranes. Besides, U-type double girder gantry crane and A-type double girder gantry crane are so named by leg shape. We provide all these types to our customers, and meet their requirements as much as possible.

 Double girder gantry cranes are applied to general materials handling, assembly,  repair and transferring service along the floor mounted railway in outdoor/open freight yards, loading areas, warehouses, workshops, mine enterprises, open storages, stock grounds, container depots, steel plants, process plants, cement plants, railway freight stations, railway terminals, rail sideways, coal fields, material stocks, docks, quays, wharfs, harbors, ports, concretes, woods, marbles, granites, ship-buildings, metallurgical factories, engineering  industries, transformer industries, cable industries, subsidiary thermo-hydroelectric power plants, especially applicable to long, large, bulky cargo.

 Double girder gantry cranes also called double girder electric gantry cranes, double girder semi gantry crane, double  girder goliath cranes or double girder full portal cranes built especially to heavy duty specifications to serve in different capacity and bridge led axles which are determined by engineers that meet demands of high duty cycles and  multiples shift operation, double girder cranes are used when heavy loads, wide spans or high working frequency are required than single girder gantry cranes. Please check double girder gantry crane specification in above PDF file.