Gantry crane pitch size determination, at work, should be left between the external dimensions and yard goods and transport vehicles passage certain spatial dimensions, lifting equipment installation, in order to facilitate loading and unloading operations. When the general transport vehicle loading and unloading in the span, and doors should be kept above the legs have 0.7m spacing. Spreader when not working with transport vehicles have more than 0.5m spacing, heavy lifting equipment, goods interlude legs, should be more than 0.5m spacing. 3, the span and the boom length. Span is an important factor affecting the quality of their own. Selection, Lixia District, lifting equipment, to meet the conditions of use and equipment Subject to span series of standards, should be minimized span. 4, to determine the principles tread, and can meet the requirements of the stability of the gantry crane along the track direction; attention span so tread B and S proportional relationship, and generally Wheelbase B = (1 / 4-1 / 6) S ; cargo dimensions to be able to pass the flat steel legs. 2, light lifting equipment, overhead cranes, gantry cranes, portal cranes, cable cranes, derricks, railway cranes, jib cranes, mechanical parking equipment once every two years, lifting the molten metal and hot metal crane once a year. As an indispensable part of the lifting equipment inspection must be rigorous treatment. Lifting equipment installation, lifting equipment Lixia District, Shandong Lu in Shandong Lu lifting by mechanical equipment installation Limited. Shandong Lu Machinery Installation Co., Ltd. (www.sdlzqz.com) strong, credible, in Jinan, Shandong's industrial maintenance, installation and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shandong Lu lifting into the brilliant and you work for a better future!