U double girder gantry crane U double girder gantry crane features: Shed U double girder gantry cranes are mainly used for outdoor, yard, bulk cargo loading and unloading operations. Its metal structure shaped like a door frame, carrying the main beam is installed at four legs, can walk directly to the track on the ground, both ends of the main beam may have overhanging cantilever. U double girder gantry crane with a space utilization, large operating range, wide adaptation, versatility, etc., are widely used in the port yard. U double girder gantry crane drive with triple system, electric speed control using non-contact module, and can be achieved with very little speed and two-speed close to the inverter, the operation is lifting electric realizable particularly smooth, with overload alarm, hanging crooked oblique pull, anti-hook hoisting secondary protection, missing items overcurrent protection, stage (handle) using 36V safe voltage in order to achieve a multi-purpose hoist gantry crane protection. U double girder gantry crane works: U-type double girder gantry crane by driving means, work organization, extract device, operation control system and metal structure. By manipulating the control system, U-shaped double girder gantry crane drive unit will power energy input into mechanical energy (ie appropriate force or velocity), before being passed to extract devices. Extract device U double girder gantry crane will be the movement of materials in touch with the crane up, through the work of bodies alone or in combination movement, complete material handling tasks. Movable metal structure will connect the components into a whole, and carrying the weight of heavy cranes and hoists. U double girder gantry crane Product Description: U-type double girder gantry cranes are mainly for general handling and lifting handling operations. U double girder gantry crane from the bridge, traveling mechanism, trolley, electric equipment and other components. Bridge with box-type single-beam welded structure, traveling mechanism adopted separately driven. All agencies have operated in the control room. Crane conductive form two types of cables and trolley line, choose one when ordering. Required to complete the order specification table Selection of the crane, the minimum temperature required to indicate the use of the working environment and maximum temperature and power supply.