QTZ80 (TC5512) is the horizontal jib frame, trolleying structure, slew on the top tower crane. It adopts the double wire winding electromotor series resistance velocity modulation. And the operating performance is reliable. The tower crane foundation may be press heavily -like or fixed type, energy conservation and environmental protection. This machine all necessary select the domestic famous brand product, the main electrical part is selected from imported completely, the safety device is reliable. It is widely adapted in each kind of large-scale architectural construction.Technical ParameterItem Technical Parameter Working Distinction of Lifting Structure m5Working Distinction of Slew Structure m4Working Distinction of Trolleying Structure m4 Rated Lifting Torque(kN.m) 1250 Max.Lifting Weight(t) 10 Working Range(m) 2.9 ~ 60/55/50 Rated Lifting Weight of Max Range(t) 1.4 Lifting Speed(m/min) Ratio α =2 α =4 Lifting Weight(t) 2.5 5 5 10 Speed 100 50 50 25 Min Steady Fall Speed <5m/min Slewing Speed(r/min) 0~0.65 Jibbing Speed(m/min) 0~60 Raising Speed(m/min) 0.45 Total Power(kW) 87.6 Lifting Height(m) ratio independtattachment α =2 50 200 α =4 50 100 Fixed Total Height(m) attached type 207.58 independent type 57.58 Balance Weight working range(m) counter weight(t) 60 15.5 55 14.6 50 17 Total Weight(t) 64.2