QTZ50 (TC5008) tower crane
Features:
QTZ50 tower crane is based on microcomputer design platform of tower crane, applying group technology, combined design technology and FE analysis technology, combining with advanced international technology and requirements of domestic construction market, develop and design more advanced tower crane in China.
The tower crane is horizontal arm support, trolleying, top slewing and hydraulic jacking tower crane. Its jib length is 50m, max. Load moment is 540 KN. M, free standing height is 30m, max. Attached height is 120m (2 falls).
Self-weight of the crane(without balanced weight and anchors) is 22.56t, total capacity of whole crane is 25.1 Kw. Advanced parameters, stable performance, good looking, excellent quality, simple structure, equipped with advanced safety devices, simple maintenance and competitive price make TC5008 tower crane be popular in small and medium construction enterprises.
QTZ50(5008) technical parameters
Max rated torque (KN. M): 500
Max lifting load(t): 4.0
Max jib length(m): 50
Hoisting height(m) independent: 30 attached: 120
Lifting capacity at jib tip(t): 0.8
Radius changing speed(r/min): 22/33
Swiveling speed(r/min): 0.6
Dead load(t): 42
Standard section dimension(mm): 1615X1615X2500
Materials of the section mast: 160X12 140X12 Q235B.
| Radius (m) |
3-14.79 |
15 |
16 |
17 |
18 |
19 |
20 |
| Load (t) |
4 |
3.94 |
3.67 |
3.44 |
3.23 |
3.04 |
2.87 |
| Radius (m) |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
| Load (t) |
2.72 |
2.58 |
2.45 |
2.34 |
2.23 |
2.13 |
2.04 |
| Radius (m) |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
| Load (t) |
1.95 |
1.87 |
1.80 |
1.73 |
1.67 |
1.61 |
1.55 |
| Radius (m) |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
| Load (t) |
1.50 |
1.45 |
1.40 |
1.35 |
1.30 |
1.25 |
1.20 |
| Radius (m) |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
| Load (t) |
1.13 |
1.06 |
1.01 |
0.97 |
0.93 |
0.89 |
0.86 |
| Radius (m) |
49 |
50 |
|
|
|
|
|
| Load (t) |
0.83 |
0.80 |
|
|
|
|
|
Table 1
load chart of 2 falls
| Radius (m) |
3-27.3 |
28 |
29 |
30 |
31 |
32 |
33 |
| Load (t) |
2 |
1.94 |
1.86 |
1.79 |
1.72 |
1.66 |
1.60 |
| Radius (m) |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
| Load (t) |
1.54 |
1.49 |
1.44 |
1.39 |
1.35 |
1.30 |
1.25 |
| Radius (m) |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
| Load (t) |
1.20 |
1.13 |
1.06 |
1.01 |
0.97 |
0.93 |
0.89 |
| Radius (m) |
48 |
49 |
50 |
|
|
|
|
| Load (t) |
0.86 |
0.83 |
0.80 |
|
|
|
|
Table 2
Technical parameters and detail technical tables of mechanisms
| Item |
Unit |
Magnification |
| α=2 |
α=4 |
| Rated load moment |
KN.m |
540 |
| Max. load |
t |
2 |
4 |
| Work radius |
m |
3 – 50 |
| Load at max. radius |
t |
0.80 |
| Radius at max. load |
m |
27.3 |
14.79 |
| Hoisting height |
Independent |
m |
30 |
| Adhered |
120 |
60 |
|
| Outer size of whole crane |
Chassis |
m |
6.0×6.0 |
| Height of whole crane |
Independent |
38.284 |
| Adhered |
128.284 |
|
| Tip of jib to the slewing center |
48.74 |
|
| Tip of balanced jib to slewing center |
12.816 |
| Self-weight |
Independent |
t |
22.56 |
| Adhered |
t |
42.7 |
| Balanced weight |
t |
8.0 |
| Other |
Total power of motors |
kW |
25.1 |
| Work grade at max. height |
Grade |
≤6 |
| Allowable work temperature |
0 C |
-20~40 |
Table 3
Technical parameters of mechanisms
| Mechanical load factor |
Hoisting mechanism |
JC 40% |
| Slewing mechanism |
JC 40% |
| Trolleying mechanism |
JC 40% |
| Hoisting mechanism |
Motor |
Type |
YZTD200L 2 -4/8/24 |
| Speed |
r/min |
1440 |
720 |
220 |
| Power |
kW |
15 |
15 |
4 |
| Reducer |
Center distance |
mm |
460 |
| Transmission ratio |
i |
12.25 |
| Drum |
Dia. |
mm |
Φ330 |
| Layers of rope |
|
4 |
| Capacity |
m |
280 |
| Speed |
r/min |
114 |
57 |
11.4 |
| Braker |
Type |
YWZ-250/45-10 |
| Braking force |
N |
450 |
| Wire steel rope |
Tractive force |
N |
10000 |
| Spec. |
6×19-12.5-1770-I |
| Hoisting speed |
m/min |
65.1/31.9 |
32.6/15.9 |
13.0/6.4 |
| Rated load |
t |
0.8/1.6 |
2/4 |
2/4 |
| Min. Stable descending speed |
m/min |
≤7 |
| Total weight |
t |
1.2 |
| Slewing mechanism |
Motor |
Type |
YZR132M-6 |
| Speed |
r/min |
908 |
| Power |
kW |
3.7 |
| Reducer |
Type |
H-100 |
| Transmission ratio |
i |
195 |
| Outputing torque |
N@m |
10000 |
| Slewing bearing |
Type |
QW.40.1120 |
|
Small pinion gear |
No. of modulus |
m |
10 |
| No. of teeth |
z |
13 |
| Modification coefficient |
x |
+0.5 |
| Hydraulic coupler |
Type |
YOX280A |
| Slewing speed |
r/min |
0.6 |
| QTY of installation |
set |
1 |
| Trolleying mechanism |
Motor |
Type |
YD100L 2 -4/6 |
| Speed |
r/min |
1440 |
960 |
| Power |
kW |
2.4 |
1.5 |
| Reducer |
Type |
WCJ120 |
| Transmission ratio |
39 |
| Wire steel rope |
Spec. |
6×19-7.7-1550-I |
| Line speed |
m/min |
38.6/25.2 |
| Trolleying speed |
m/min |
38.6/25.2 |
| Hydraulic jacking mechanism |
Hydraulic pump |
Work pressure |
MPa |
20 |
| Power |
kW |
4 |
| Type of oil pump |
GB306 |
| Jacking cylinder |
Rated pressure |
MPa |
20 |
| Dia. of cylinder |
mm |
Φ125 |
| Dia. of piston rod |
mm |
Φ90 |
| Stroke |
mm |
1300 |
| Erection distance |
mm |
1700 |
| Jacking speed |
m/min |
0.4 |
| Max. Jacking force |
t |
24.6 |
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