QTZ125 tower crane was designed by China Construction Scientific Research Institute Construction Mechanization Sub-Institute and developed by our company. It is a multiple-function hydraulic auto-lift tower machine characteristic of upper-circumgyrating, horizontal arm and variable range with small cabin. The machine is scientific in design and beautiful in appearance. The independent driver's room and its broad visual field provide a nice work environment for the operator. The crane is convenient to operate and easy to maintain and repair. It is an ideal construction machine for construction enterprises. The machine has four kinds of work structures: Lifting, circumgyrating, variable ranges, and top lifting. The four structures can work in combination as well as independently so as to improve work efficiency. The top lifting structure is used to increase the height of the tower or lower the tower. The lifting control of this machine has three choices: Frequency conversion stepless speed adjusting, double speed wire winding motor speed adjusting, and tri-speed motor speed adjusting. The circumgyrating control has two options: Frequency conversion stepless speed adjusting and wire winding motor speed adjusting. The range adjustment control has two selections: Frequency conversion stepless speed adjusting and tri-speed motor speed adjusting. The above settings can be made according to the demands of the customers. All the models work stably and can fully satisfy different needs. The lifting arm can rotate 540 to the left and right. The circumgyrating and range adjusting are agile and reliable, and the hoisting positioning is accurate. Thus the crane can satisfy the need for vertical and horizontal transportation in construction operation.<o:p>Tower Crane Model:QTZ125(TC6515)
Free Standing Height/Max. Height:50m/150m
Jib Length :3---65m
Mast Section/Material:∠125×125×12 /Q345B
Size of Mast Section, L×W×H:1835×1835×2500
Collar Ties Situation: Distance between first collar tie and the ground 35000mm
Other Distance 25000mm
Suspension Height no more than 25m
Balanced Weight /Jib Length: 22.5t/65m.20.4t/61m.17.7t/55m
Total Power :62Kw
Loading Chart:
Jib Length 65m 2 Falls
m |
3-26.09 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
| t |
5 |
4.807 |
4.608 |
4.424 |
4.251 |
4.09 |
3.938 |
3.796 |
3.662 |
3.536 |
| m |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
| t |
3.417 |
3.304 |
3.198 |
3.096 |
3 |
2.908 |
2.821 |
2.738 |
2.659 |
2.583 |
| m |
46 |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
| t |
2.51 |
2.441 |
2.375 |
2.311 |
2.249 |
2.191 |
2.134 |
2.079 |
2.027 |
1.976 |
| m |
56 |
57 |
58 |
59 |
60 |
61 |
62 |
63 |
64 |
65 |
| t |
1.928 |
1.881 |
1.835 |
1.791 |
1.749 |
1.708 |
1.668 |
1.63 |
1.593 |
1.557 |
4 Falls
m |
3-14.2 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
| t |
10 |
9.422 |
8.78 |
8.213 |
7.709 |
7.259 |
6.853 |
6.486 |
6.152 |
5.848 |
5.569 |
| m |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
| t |
5.312 |
5.075 |
4.855 |
4.651 |
4.461 |
4.284 |
4.119 |
3.963 |
3.817 |
3.68 |
3.55 |
| m |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
| t |
3.428 |
3.312 |
3.203 |
3.099 |
3 |
2.906 |
2.817 |
2.731 |
2.65 |
2.572 |
2.497 |
| m |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
56 |
57 |
| t |
2.426 |
2.358 |
2.292 |
2.229 |
2.169 |
2.111 |
2.055 |
2.001 |
1.949 |
1.899 |
1.851 |
| m |
58 |
59 |
60 |
61 |
62 |
63 |
64 |
65 |
|
|
|
| t |
1.804 |
1.759 |
1.716 |
1.674 |
1.633 |
1.593 |
1.555 |
1.518 |
|
|
|
Jib Length61m 2 Falls
m |
3-26.96 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
| t |
5 |
4.922 |
4.787 |
4.596 |
4.418 |
4.251 |
4.095 |
3.948 |
3.809 |
3.679 |
| m |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
| t |
3.556 |
3.439 |
3.329 |
3.224 |
3.125 |
3.030 |
2.940 |
2.854 |
2.772 |
2.694 |
| m |
46 |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
| t |
2.619 |
2.547 |
2.479 |
2.413 |
2.349 |
2.289 |
2.230 |
2.174 |
2.120 |
2.067 |
| m |
56 |
57 |
58 |
59 |
60 |
61 |
|
|
|
|
| t |
2.017 |
1.968 |
1.921 |
1.876 |
1.832 |
1.790 |
|
|
|
|
4 Falls
m |
3-14.66 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
| t |
10 |
9.755 |
9.092 |
8.507 |
7.987 |
7.522 |
7.103 |
6.724 |
6.380 |
6.065 |
5.777 |
| m |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
| t |
5.512 |
5.267 |
5.040 |
4.830 |
4.634 |
4.451 |
4.280 |
4.120 |
3.969 |
3.827 |
3.693 |
| m |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
| t |
3.567 |
3.448 |
3.334 |
3.227 |
3.125 |
3.028 |
2.936 |
2.847 |
2.763 |
2.683 |
2.606 |
| m |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
56 |
57 |
| t |
2.533 |
2.462 |
2.394 |
2.329 |
2.267 |
2.207 |
2.149 |
2.094 |
2.040 |
1.988 |
1.939 |
| m |
58 |
59 |
60 |
61 |
|
|
|
|
|
|
|
| t |
1.890 |
1.844 |
1.799 |
1.756 |
|
|
|
|
|
|
|
Jib Length 55m
2 Falls
m |
3-28.7 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
37 |
| t |
5 |
4.941 |
4.751 |
4.573 |
4.407 |
4.251 |
4.103 |
3.965 |
3.834 |
3.710 |
| m |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
| t |
3.592 |
3.481 |
3.375 |
3.274 |
3.178 |
3.087 |
3.000 |
2.916 |
2.837 |
2.760 |
| m |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
|
|
| t |
2.687 |
2.617 |
2.549 |
2.485 |
2.422 |
2.362 |
2.305 |
2.249 |
|
|
4 Falls
m |
3-15.58 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
| t |
10 |
9.717 |
9.095 |
8.543 |
8.048 |
7.603 |
7.200 |
6.834 |
6.500 |
6.194 |
5.912 |
| m |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
| t |
5.652 |
5.411 |
5.187 |
4.979 |
4.784 |
4.602 |
4.432 |
4.272 |
4.121 |
3.979 |
3.845 |
| m |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
| t |
3.718 |
3.598 |
3.483 |
3.375 |
3.272 |
3.174 |
3.080 |
2.991 |
2.905 |
2.824 |
2.745 |
| m |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
|
|
|
| t |
2.670 |
2.598 |
2.529 |
2.463 |
2.399 |
2.338 |
2.279 |
2.222 |
|
|
|
Basic Parameters:
Slewing Bearing
Hydraulic Jacking Mechanism
Trolleying Mechanism
| Mechanical Factor |
Hoisting Mechanism |
M5 |
| Slewing Mechanism |
M4 |
| Trolleying Mechanism |
M4 |
| Hoisting Mechanism |
Motor |
Model |
YZRDW250M-4/8 |
| Power(kW) |
37/37 |
| Height Limiter |
Model |
FKDX-G |
| Wire Steel Rope |
Specification |
6X37-16-1770-I |
| Max. Attraction (N) |
25000 |
| Falls |
a=2 |
a=4 |
| Hoisting Speed(m/min) |
80 |
40 |
40 |
20 |
| Rated Load(t) |
2.5 |
5 |
5 |
10 |
| Min. Rate of Descent |
m/min |
≤5 |
| Slewing Mechanism |
Motor |
Model |
YZR160M1-6 |
| Power(kW) |
5.5×2 |
| Rotating Speed(r/min) |
908 |
| Reducer |
Model |
XX4-120AI |
| Drive Ratio |
195 |
| Coupler |
Model |
YOX280A |
| Rotating Pinion |
Modulus m |
12 |
| Number of Teeth z |
17 |
| Modification coefficient |
+0.5 |
| Rotating Speed |
r/min |
0.61 |
| Single row four-point contact ball slewing bearing |
Model |
011·45·1400 |
|
Modulus m |
12 |
|
Number of Teeth z |
131 |
|
Modification coefficient |
+0.5 |
| Motor |
Model |
Y132M2-4 |
|
Power(kW) |
7.5 |
| Rated Oil Cylinder Working Pressure |
Mpa |
25 |
| Max. Jacking Force |
t |
63 |
| Oil Cylinder Stroke |
mm |
1600 |
| Locating Distance |
mm |
2100 |
| Oil Cylinder Diameter |
mm |
φ180 |
| Oil Cylinder Piston Diameter |
mm |
φ125 |
| Jacking Speed |
m/min |
0.4 |
| Motor |
Model |
YZTDE180M-4/8/24 |
|
Power(kW) |
5/3.7/1.1 |
| Wire Steel Rope |
Specification |
6×19-9.3-1550 |
| Reducer |
Model |
XX3-14.40 |
|
Drive Ratio |
39.7 |
| Trolleying Speed |
m/min |
58.6/29.3/8.79 |
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