QTZ40 tower crane is the newest hoisting transportation machinery in china, which is designed by Jinan Jihong Machinery Co.,ltd., making full use of GT. Combined design technology and FEA technology based on "computer design platform of tower crane".QTZ40 tower crane is upper-swing hydraulic climbing tower crane with horizontal-jib, trolley winch. All kinds of performance parameters and technical items are up to or better than the National Standard. The max. radius is 46.8m. Independent loading-lifting height is 29m. Attaching load-lifting height is 120m(2 fall). The rated load moment is 400kNm.QTZ40 tower crane is of advanced parameters, excellent and reliable performance, good-looking model, high quality, simple and applied structure with advanced safety devices. Namely, QTZ40 tower crane is an ideal construction machinery for most architecture enterprises with convenient maintenance, safety application and appropriate price.