Check the safety devices cantilever crane (jib crane) security device checks cantilever crane overload protection device overload protection device is sensitive and reliable, meet the design requirements, the opening pressure of the hydraulic overload protection device; machinery, electronics and integrated overload protection alarm, cut off the power source for a comprehensive set point error meets the requirements. Cantilever crane electrical systems and control line dividing their distribution location for the power to introduce, carts run control box (device), carts limit switches, electric hoist control box, lift limit switch, control buttons, motors, speed control resistance, several units or nodes cantilever crane remote control devices, all using the control unit or node between each cable connecting devices with a dedicated connection, connect a dedicated connection devices and cables all use a solid and reliable connection small jib cranes, and dedicated connection device and the cable junction cavity injection special insulation material, after curing, make special connection devices and cables to form a whole; solve their connection reliability and vibration problems; dedicated connections through different types of devices, the entire dedicated connection device cantilever crane electrical system does not use an interchangeable (except when debugging requires swap lines), and all connected devices connector end face has a line number marked; the cantilever crane electrical wiring is installed in the factory; Avoid the line installation errors; achieve fool connect all circuits. The effective realization of the benefits is to make all electrical unit implements standardized interfaces cantilever hanger realized electrical system fast, reliable and accurate fast connection, does not require a professional electrician to achieve installation and replacement of electrical lines, to a large extent cantilever crane on saving electrical installation costs, electrical wiring replacement time and skilled human resources. So since cantilever crane electrical installation and replacement as simple as using household appliances. Crank series cantilever crane has a novel structure, flexion freely, flexible operation, energy efficient features. Operation, pushed the button to lift the load material, the use of bending and rotational motion of the beam, avoidance of objects within the control of the working area, so that the work area is maximized. Gently push and pull, can attain a position in any work area. Gantry crane lifting capacity of up to 2000 kg cantilever crane beams, all using a crane hanging impossible or uneconomical place can easily use. Gantry crane can simply split into several easily transportable parts can be used in another place quickly assembled, this feature beneficial on many occasions. Trackless beam gantry crane lifting capacity of up to 2000 kg. Crane _ _ Xinxiang Constant crane jib cranes lifting equipment from 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!