Lifting hook

grabspringfor cables

Model Number:Crane Lifting Hooks Finish:ZINC, Electrolytic Treatment Application:Heavy Industry, Mining, Water Treatment, Food & Beverage, General Industry, Oil & Gas Place of Origin:Henan, China Material:Iron Color:Accept Customized Size:Accept Customized Surface:Galvanized Type:Safety Spring Hook Lifting capacity:0.5-550t Sling Type:Wire rope Feature:Single or double hook Working class:M5 Running speed:32m/min Hooks have single hook and double hooks according to shape of hook. Five strength grades M,P,S,T,V,are classified in accordance with mechanical property. Forging hook and strap type hook are manufactured according to method of manufacturing. Scraping of hook One of following cases happens, and discard as useless. 1 flaws 2 Abrasion of dangerous fracture surface reaches 10% of full size. 3 Degree of opening adds to 15% than full size. 4 Torsional deformation exceeds 10°. 5 Dangerous fracture surface and hook neck have plastic deformation. 6 Lining of board hook abrades reaches 50% of full size, and should be discarded as useless. 7 Mandrel of board hook abrades reaches 50% of full size, and should be discarded as useless.