4t mini Self Rising hammer head tower crane QTZ50(4810)
1. 4t max load, tip load 1.0t, jib length 48m.
2. new condition tower crane/hydraulic self erecting tower crane/construction tower crane
3. China-made high quality tower crane, China good tower crane manufacturers
4. high efficiency, CE, ISO, GOST certificates
Technical data
The rated lifting moment
|
500KN.M
|
The max lifting capacity
|
4t
|
The jib length
|
48m
|
The radius
|
3-48(m)
|
The tip load
|
1.0t
|
The free standing height
|
30(m)
|
The attaching height
|
120m
|
Main chord
|
160*1600*12(mm)
|
Mast section
|
1.5*1.5*2.2/1.5*1.5*2.5(m)
|
Slewing angle
|
540℃
|
Material
|
Q345B Mn steel
|
Work T
|
-20℃~+40℃
|
Mechanism specification
Lifting parameter
|
a=2
|
a=4
|
Kw
|
lifting
|
m/min
|
65
|
33
|
13
|
33
|
13
|
6.5
|
18/18/5
|
t
|
1.25
|
2.5
|
2.5
|
2.5
|
5
|
5
|
Trolleying
|
m/min
|
38/25
|
2.8/2.2
|
Slewing
|
r/min
|
0.6
|
3.7
|
Climbing
|
m/min
|
0.4
|
4
|
Power supply
|
~380V 50Hz/440V 60Hz
|
Load Capacity
Radius(m)
|
3-14.75
|
15
|
16
|
18
|
20
|
22
|
24
|
26
|
27.5
|
28
|
30
|
32
|
34
|
36
|
38
|
40
|
42
|
44
|
46
|
48
|
Hoist(t)
|
a=2
|
2
|
1.96
|
1.81
|
1.68
|
1.56
|
1.45
|
1.36
|
1.28
|
1.20
|
1.13
|
1.07
|
1.01
|
a=4
|
4
|
3.93
|
3.66
|
3.22
|
2.86
|
2.57
|
2.33
|
2.12
|
2
|
1.95
|
1.79
|
1.66
|
1.54
|
1.44
|
1.34
|
1.26
|
1.18
|
1.11
|
1.05
|
0.99
|
The process features:
1): automatic submerged arc welding is adopted in the main section limbs and chord boom. It has high thermal efficiency, high penetration, high production efficiency, while reducing the pores and crack defects, increases the weld strength and the beautiful appearance.
2): we adopt carbon dioxide gas welding; it has heat concentrated, a small welding line, high strength and resistance to rust and crack. it can reduce tress and deformation, it has high strength and resistance to rust and crack.
Service
1: before sales service
a: provide you expert sujestion for choosing the most suitable tower crane.
b: answer your question patiently and professionally.
2: in the process of sale service
a: notify you the latest progress of your order
b: in time delivery, shipmment
c: send you necessary documents for custom-clearance timely
3: after-sales service
a: provide you professional installation guide.
b: any question or promble come out, we will be on line for help you at any time.
c: any feedback or comment or suggestion is very precious for us.
