With the continuous development of the national economy lifting handling equipment, of all walks of life in the ascendant, especially the chemical industry, metallurgy and electric power construction of oil, in order to pursue a more efficient and more effective, overall hoisting increasingly common for hoisting technology and requirements for lifting equipment is also increasing. To this end domestic lifting with lifting equipment from the previous single masts, and gradually developed into a high-performance, more secure and reliable operation of large mobile mechanism, the electric motor, reducer, brake and wheel components. Modern cranes lifting heavy equipment, each wheel is usually driven by separate drive mechanism may also be a combination of motor, reducer and brake as one of the "triple play" approach. Lifting trolley traveling mechanism similar composition and special operating agencies crane lifting equipment for the horizontal transport of heavy or adjust the lateral position of the car. 3, luffing mechanism only in the jib crane was equipped, when the boom looked amplitude decreases, the amplitude is increased when bent. According to the performance requirements can be divided into equilibrium and non-equilibrium luffing luffing two kinds. According to the operational requirements of the amplitude can be divided into work and non-work ranged from two kinds. Heavy lifting equipment, lifting equipment City district, Shandong Lu leading technology provided by Shandong Zhonglu mechanical equipment installation Limited. Shandong Lu Machinery Installation Co., Ltd. (www.sdlzqz.com) strong, credible, in Jinan, Shandong's industrial maintenance, installation and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shandong Lu lifting into the brilliant and you work for a better future!