... hoisting mechanism of the crane is equipped with a safety device of specia 2:design to ensure the safety of lifting of ... FCRS and , PLC control, with the features of superior performance, reasonable structure, safety, reliability and ... , the span is 36m, and for the hoisting height, the main hook is 28m, the ... wheel pressure is 45t. For the wheels of the crane, driving wheels are 2X4 and driven wheels ...