The maximum length of its jib can be 60m and also can be reassembled to 55m,50m,45m,40m, which can have a wide work range spite of barriers.The anchoring tower crane has the hoisting height of 46.2m.The tower crane use fluid drive system to increase or decrease mast height so as to make proper crane height for different building height.The climbing tower crane has the hoist height of 161m.At specific requirement and through special treatment ,the anchoring tower crane can have the hoisting height of 51.2m and the climbing one can have the hoisting of 200m.