(1) With no-trolley-frame structure, the height of trolley for large-tonnage bridge crane is reduced by more than 1.5m, and the workshop space is larger; the dead weight of the whole crane is about 15%-30% lighter than the general purpose bridge crane, and the wheel load is low, which can save investment.
(2) The bridge structure and end beam are connected by pin shaft, which is convenient for transportation and installation.
(3) The hoisting and travelling mechanisms both adopt frequency conversion speed regulation, PLC control, with high reliability and low failure rate.
(4) Having the largest dynamic load test bench for trolley and static load test bench for bridge structure.
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