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Tower Crane QTZ250 (7030)

Tower Crane QTZ250(7030) Model:QTZ250; Jib length:50~70m; Height:51.7m; Tip load:3.0~5.3t; Max load:12t.

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Tower-crane-QTZ250
xianquan
525m
  Q(t) H(m)
gouzi 6 187
gouzi2 12 95
 F1  operation89t out-of-operation98t self-weight93t
 F2  operation136t out-of-operation148t self-weight
 F3  operation96t out-of-operation104t self-weight82t
Travel Fixed Chassis Embedded fixed outtrigger
travel fixed-chassis embedded-fixed-outrigger
 F operation  out-of-operation  self-weight 
 counterforce operation   out of operation selfweight (no suspended load, no counterweight, no ballasting, selfweight with the longest jib and the max freestanding height 

Load Diagram

Jib
m
Fall R(Cmax)
m
C(max)
t
25 30 35 40 45 50 55 60 65 70
70 IV 20.4 12.0 9.41 7.51 6.30 5.70 4.95 4.34 3.85 3.44 3.09 2.80
II 39.5 6.00 6.00 6.00 6.00 5.90 5.15 4.54 4.05 3.64 3.29 3.00
65 IV 20.09 12.0 9.69 7.74 6.37 6.00 5.10 4.48 3.97 3.55 3.20  
II 40.05 6.00 6.00 6.00 6.00 6.00 5.30 4.68 4.17 3.75 3.40  
60 IV 21.2 12.0 9.80 7.83 6.45 6.00 5.16 4.53 4.02 3.60    
II 40.9 40.9 6.00 6.00 6.00 6.00 5.36 4.73 4.22 3.80    
55 IV 22.2 12.0 10.42 8.35 6.89 6.00 5.50 4.84 4.30      
II 42.0 6.00 6.00 6.00 6.00 6.00 5.70 5.04 4.50      
50 IV 23.1 12.0 10.95 8.79 7.27 6.00 5.70 5.10        
II 44.9 6.00 6.00 6.00 6.00 6.00 5.90 5.30        
Mechanism gouzi3 gouzi4 Drum capacity Motor
Hoisting hoisting m/min 40  80 20  40 525m 51.5kW
t 6.00  3.00 12.0  6.00
Derricking  derricking m/min 15/38/58 120Nm
Slewing  slewing r/min 0-0.7 2x145kW
Traveling  traveling m/min 12.5/25 4 x 1.7/3.4kW
Jacking  jacking m/min 0.45 7.5kW
Mains 380V/50HZ

Mast sections adopt split structure,convenient for transportation and storage,save the long distance freight.The main chord of mast section adopts Q345B material,fine adaptability to environment.The mechanism adopt foreign advanced technical products,reliable in performance.








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