Line hanging stopper line hanging must have moments, high, horn, walking four stopper, but also hook and reel Insurance insurance. Line hanging between two limiting device was installed, at least when they are no longer close to a distance of one meter, and it will be very prone to accidents. Since the tower structure and the kind of particularity, the corresponding safety device 20 tons of line hanging price, according to the actual requirements should be as follows: 1 with respect to the safety device of the four tower crane moving mechanism are: torque limiting its Linyi small line hanging, from the weight limiter, slewing limiter, luffing limiter, which increased limiter, large dealers limiter; 2 relative to the tower crane safety device electrical properties are: over-current protection , undercurrent protection, zero protection. 3. Other: anemometer, bull red line hanging button switch, anti-sensing device, lightning protection devices. Walking limit is not derailed rail-mounted crane control to run. Security checks should be carried out crane walking motion test, to verify the reliability of the collision limit. Line hanging job jog performance checks mainly for line hanging job during hoisting, slewing, luffing mechanism of action sensitivity and accuracy for debugging. Line hanging debugging requirements: when the relevant agencies to ensure that the lifting operation smooth, accurate operation, no creep, vibration, shock and driving power increases and other abnormal phenomena: lifting, jogging good performance slewing, and luffing mechanism. Debugging conditions: basic boom, boom elevation angle 50 °, lifting the rate of work under the rated lifting capacity to stop after one meter height. Debugging methods: pulling the joystick to the crane (down) position line hanging, when heavy braking slight movement immediately. Continuous landing boom 10 times, measuring the weight cumulative distance horizontal movement, and calculate the average per-action arm landing shift amount. Its value should meet the specified value, or should be adjusted brake reliability and sensitivity (wire luffing mechanism) or the back pressure in the hydraulic circuit balancing valves and secondary safety valve set pressure (hydraulic cylinder luffing). Dongguan line hanging installation, generous heavy (certified), Leiyang line hanging by heavy machinery Co., Ltd., Henan Province, generous. Heavy Machinery Co., Ltd., Henan Province, generous (www.hnqizhongshebei.com) (www.hnqizhongshebei.com) is Zhengzhou, engineering, construction cranes leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In heavy generous leadership with the staff warmly welcome all inquiries negotiations to create a better future for heavy generous.