Crane safety devices: leg locking mechanism. Sell ??50 tons crane accident when the accident occurred, leading to the legs vertical cylinder high-pressure hose or pipeline rupture or cut, the hydraulic system of two-way hydraulic lock cylinder block can block two outrigger pressure oil chamber 50 tons crane price make legs indented or thrown 50 tons crane, to ensure the safety of lifting operations. Crane use and maintenance: Crane in the run-term use and maintenance of the amount of money required for 50-ton crane, can be summarized as follows: to strengthen the training, to reduce the load, pay attention to check, to strengthen the lubrication. Just pay attention to the implementation of the crane as required run-in period of care and maintenance, it will reduce the incidence of early failure, prolong life, improve operational efficiency, so the machine to bring you more revenue.