Crane use and maintenance: Note Running a workload of 120 tons crane sales company, running workloads period generally do not exceed 80% of the rated working load, and to arrange for the work to prevent overheating machinery caused by long-term continuous operation phenomena occur. Note that often observe the meter indication, abnormal, should stop in time be excluded 120 tons crane, the reason is not found in the fault is not excluded before, should cease operations. Crane of structure: crane four categories. Bridge type crane hoisting machinery such as beams and so on. Jib type crane as fixed rotary cranes, tower cranes, truck cranes, tire cranes, crawler cranes. Cable Crane as lifts. Small light lifting equipment such as: Jacks, pneumatic hoists, electric hoists, balancing gourd (aka balance suspended), winches, etc..