Reel, reel body, cylinder edge or without fatigue cracks, damage, etc.; rope grooves and cylinder wall wear is excessive; drum rim height and rope winding layers can match; guide rope, rope working whether to meet the requirements; 5, couplings, coupling parts with or without defects, loose connections, run impact of the phenomenon. Couplings, pin, axle pin hole, buffer rubber ring wear is excessive. Coupling the two parts are connected are concentric. In any job site machinery required lifting equipment and operating environment, Weifang lifting equipment, considering the flexibility to do the mechanical stability and lower to the ground than the pressure requirements and other factors, sophisticated lifting equipment, small Tell you about the following points: 1, material handling, lifting and the need for rapid approach sporadic construction work, select auto cranes is appropriate, if the arm and leg retractable hydraulic truck crane is more favorable; For telescopic arm must be inserted into the window or hole operations, hydraulic truck crane is the best of the hoisting machinery. Lifting handling equipment | Lifting Shandong Lu (Online) | Weifang lifting equipment provided by Shandong Lu mechanical equipment installation Limited. Shandong Lu Machinery Installation Co., Ltd. (www.sdlzqz.com) Shandong Jinan, industrial maintenance, installation of leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lifting leadership in Shandong Lu in the staff warmly welcome all inquiries negotiations to create Shandong Lu lifting a better future.