Cantilever crane parts crane boom height limiter fitting height limiter device will trip the switch and pull the strip-type structure punch combination, simple, sensitive and effective to suppress the occurrence of significant personal injury, make sure the Construction site safety. After several years of use, the effect is significant. Structure and installation: The limit switch bolted sheet steel semi-enclosed box-like protection. Protective case with two slide seat bottom weld, punch-type brace can be moved around within the seat slide chute. At one end of the punch-style pull drilled a small hole for fixing thin rope or nylon rope. Cantilever crane slickline Viagra nylon rope used to set the height limit. Cantilever lift lifting height limiter can be installed next to the hoist can also be installed in the distribution cabinet. When installing cantilever crane, will wear thin rope or nylon rope firmly fixed in the human-type brace end punch holes, and the other end is fixed to the top of the cage. Limit switch lead connects to the distribution cabinet AC contactor. How it works: When the construction of the lift cage upward run, the small wheel on the trip switch in the punch-type brace pits - energized position. When the cantilever crane lifts a mechanical failure or operator misuse when heavy jib cranes, hoists have been rising to the height limit, namely lifting height limit is set at the height, because of hoists beam affects slickline and punch-type brace, Meanwhile, the small wheel on the trip due to switch on the external force to move hump punch-style pull-bar, a small roller to move from the mouth to the point energized position cantilever crane small bumps, make the trip switch power off, cut up the power winch motor stop operation, the cage stops running. Manual lifting height limit from the punch-type brace to make the trip from the small wheel on the switch is reset to pit bump energized position, to make the cage starts. January to June 2014, cumulative sales of truck-mounted crane truck mounted crane manufacturer 5987, an increase of 17.14%; tire crane sales of 98 units, up 19.51 percent, thanks to growth in lorry crane and mobile crane sales, While sales of truck cranes and crawler cranes continued to decline, but the crane cumulative sales in the first half of 2014 reached 15,400 units, up slightly by 1.00%. in 2014 as a whole, benefit from the crawler crane sales bottomed rebound and random, Guangdong tire recovery crane jib cranes, truck cranes, although sales still maintain a downward trend, but the crane industry total sales will rise slightly, is expected to more than 29,300; in 2015 the market is getting warmer, the crane total sales of more than 30,000 units; By 2020, with the wave of a crane launched on aging and all kinds of domestic large-scale projects, crane sales will be close to 44,000 units, compared to 2014, the annual compound growth rate of 6.96%. (1) over a fixed load not hanging; (2) the command signal is unknown, weight unknown, not hanging dim light; (3) driving hanging heavy hanging directly without processing, (4) slings and accessories tied strong, does not meet the security requirements do not hang ; (5) do not hang crooked pull Xiegua; (6) to stand on the workpiece or workpiece floating liberalize not hanging animal; (7) oxygen bottles, acetylene bottles of high pressure cylinders with explosive material not hanging; (8) angular edge of the object is not really hanging mat; (9) buried objects is not hanging; not hanging (10) illegal command. Cantilever lifting, jib cranes, crane lifting equipment Xinxiang Constant provided by Xinxiang City Constant crane lifting equipment Limited. Xinxiang City Constant crane lifting equipment Limited (www.xxhlqz.com) (www.xx.com) strong, credible, Xinxiang in Henan Province hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xinxiang Constant lifting equipment and lifting you hand into the brilliant, for a better future!