Welding gantry crane

steel

Widely used in: Large sandstorm place Truss crane mainly refers to truss gantry crane which use truss structure, welded from shaped-steel, divided into two working-level mid-level and light-level system according to the busy degree of use. Truss gantry crane is mainly used in factories, open area between fixed cross, construction and installation sites, lumber yards and other places, due to the wind size is smaller than the box-shaped structure. Truss crane is particularly suitable for large sandstorm place, generally for handling and lifting work. 1. Crane wheel, wheel axle through high frequency quenching and quenching and tempering treatment, effectively eliminate internal stress, ensure the machining accuracy. 2. Main girder plates main using ray inspection and ultrasonic testing to welding connection seam and corner seam in order to ensure weld quality. 3. In the main girder field, first to adopt intelligent and efficient welding robots, seam welding of the main beam adopt advanced MAG, adopt Ar+Co2 Mix protective gas, outside of the four main girder adopted submerged arc weld angle welder. 4. Adopted rolled steel drum or seamless steel tubes, Henan Mine Crane Co.,LTD has an industry-leading rolled steel drum production and processing production line, from pre-bending presses 1250t, to three roll bending machine convolutions, to the cylinder longitudinal seam and girth automatic welding center welding and heavy CNC horizontal lathe machining cylinder.