1. materials lifting equipment Lifting often with the huge and complex organization structure, work process often sport several different directions simultaneously, greater technical difficulty.
2. Can lifting weights varied load varies. Some weighing hundreds of tons heavy, bulky and irregular, as well as shot, thermal integration explosive dangerous goods, so that the lifting process is complicated and dangerous.
3. Need to run in a wide range, the larger space, once the accident, the impact area as well.
4. Some Lifting (only construction lifts, etc.), the need for direct carrying staff to do the lifting movement, which directly affect the reliability of safety.
5. The activities of the various components are more exposed, and often in direct contact with the workers, many potential accidental risk factors. 6. The work environment is complex, involving companies, ports, construction sites and other places, environmental risk factors for high temperature, high pressure, explosive and other related to the equipment and operating personnel a threat.
7. The job often requires people to cooperate and coordinate to commanders, operators and riggers and other demanding.
According to statistics, China's annual number of accidents fatalities lifting injuries accounted for about 15% of all industrial enterprises in the total number of fatalities. To ensure the safe operation of the 50 ton crane, the state will it be managed as special equipment, many companies regard as manage the lifting equipment work safety key.