QTZ4808 tower crane We started manufacturing tower cranes from the very year our firm founded in 2001.And now can offer tower cranes with a maximum lifting load form 2.5t to 16t, which is from QTG25, QTZ25, QTZ31.5, QTZ40, QTZ63, QTZ80, QTZ100, QTZ125, QTZ160 and QTZ260, to meet the demand of various kinds of customers in different construction works. QTZ40 Series 4808 Maximum rated torque (KN. M) 400 Maximum lifting load(t) 4.0 Maximum Working amplitude(m) 48 Hoisting height(m) Independent 29 Adhered 120 Lifting capacity at jib tip(t) 0.8 Hoisting speed (m/min) A=2 70/35/7.5 35/17.5/3.75 A=4 Radius changing speed(m/min) 24/36 Swiveling speed(r/min) 0.6 Climbing speed(m/min) 0.6 Dead load 42.7/21.5 Upper chord of lifting beam 89x6 20# Standard section dimensions(mm) 1494x1494x2200 Matching motor Three speeds Materials of section mast 108x10∠ 140x12 Q235B Parallel height of lifting beam(mm) 1040
