Qtz40 (4808) 4ton Load Mini Self Erecting Tower Crane
Vertical drilling machines are the most widely used in metalworking. ... The tool, such as a drill, countersink, or reamer, is fastened on a vertical spindle, and the work-piece is secured on the table of the machine. The axes of the tool and the hole to be drilled are aligned by moving the workpiece. Vertical Drilling,Drill Vertical,Vertical Drill Press,Pillar Drill Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hosdunmachinetools.com
>>>Product Description:Â
   QTZ40-4808 4ton load mini self erecting tower crane is a mini tower crane to lift various material in construction field. This mini crane is characterized by creative design with rational structure and reliable operation. Its maximum load is 4t, tip load is 0.8t, jib length is 48m, free standing height is 29m, maximum anchorage height can reach 120m. Equipped with all necessary safety devices, this self ereting tower crane is superior to its counterparts not only in its original design, attractive appearance and secure operation but also in its extraordinary speed-control ability and work efficiency.
>>>Specification for QTZ40(4808) 4ton Load Mini Self Erecting Tower Crane:
series
QTZ40
Standard Model
4808
Max. Lift Load
4t
Tip Load
0.8t
Free Standing Height
29m
Max. Anchorage Height
120m
Jib Length
48m
Mast size
1.5×1.5×2.2m
Lift MechanismÂ
Lifting Speed
(a=2)70/35/9 m/min
(a=4)35/17.5/4.5m/min
Lift motor
15/15/4kw
Wire rope diameter
12.5mm
Trolley Mechanism
Trolley speed
39/26 m/min
Trolley Motor
1.5/2.2kw
Slewing Mechanism
Slewing speed
0.62r/min
Slew Motor
3.7kw
Jacking Mechanism
Jack climbing speed
0.4m/min
Jack climbing motor
4kw
Voltage
380V/50Hz/3P
Luxury Operate Cabin, Schneider Electric Parts 
>>>Load Capacity Diagram for QTZ40(4808) Mini Self Erecting Tower Crane:
Jib(m)
3-11
14
18
22
26
30
34
38
42
Fall=2(t)Â
 2
2
2
2.027
1.869
1.711
1.553
1.395
1.237
Fall=4(t)Â
 4
3.090
2.360
2.027
1.869
1.711
1.553
1.395
1.237
Range(m)
46
48
Fall=2(t)
1.079
0.8
Fall=4(t)
1.079
0.8
>>>Different Models of Tower Crane are Supplied:Â
Model
Standard Model
Jib Length/m
Tip load /t
Max Load/t
QTZ31.5
4208
42
0.8
3
QTZ40
4808
48
0.8
4
QTZ50
5008
50
0.8
4
5010
50
1.0
4
QTZ63
5010
50
1.0
5
5013
50
1.0
6
5610
56
1.0
6
QTZ80
5610 topless
56
1.0
6
5513
55
1.3
6
6010
60
1.0
6
6010
60
1.0
8
QTZ125
6015
60
1.5
8 or 10
QTZ160
6516
65
1.6
10
QTZ250
7030
70
3
12 or 16
QTZ315
7040
70
4
16 or 18
QTZ400
7055
70
5.5
25
QTD3020
\
30
2
2.9
QTD4015
\
40
1.5
6
QTK20
\
25
0.8
2
1. Suitable for all kinds of construction project and can work under all kinds of work condition.Â
2. It has high working speed, good speed-adjusting performance, steady operation and high efficiency.Â
3. The crane has complete set of safety devices, which can guarantee the safe and high efficienct operation of the equipment.Â
4. Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which enables heavy load low speed and light load high speed.Â
5. Planet gear decelerator is applied in the circumgyrating structure, together with moment-limiting hydraulic coupler, which can relize high load capacity, steady starting and reliable operation.Â
>>>Safety Features of the Tower Crane:Â
1. Overload protection: If the material is over the capacity, the crane will give a sharp warning for protection itself.Â
2. Emergency brake: If the operation staff encounter some emergency situation, we could start the emergency brake system to protection the related treasure.Â
3. Control Method: Room control or remote control to avoid any injure to the operation staff
4. Main lifting motor: With thermal protection and currency protection. 
>>>Packaging &Â Delivery of Tower Crane:Â
Packaging Details: 40 HC containers; High quality Wodden cage for electrical parts Delivery
Delivery: 20-25 days after received the deposit in advance
>>>Technical Support:Â
Tavol Cranes Group is the professional Tower Crane Manufacturer and Exporter in China
Your requirement. We have our own factory, welcome to visit our factory at your time and
Learn about our factory and products.Â
24 hours online service and support, call or contact us by Skype, QQ, MSN etc.Â
We are sure we can give you best service.Â
1- One year warranty for whole machines.Â
2- Providing free quick-wear part.Â
3- Low charge for continue maintenance when warranty is expired.Â
4- Exclusive engineer support at any time.Â
5- We can provide free training to end-users.  
Please supply more detail to us:Â
1. Building height:?
2. Jib length:?
3. Max load capacity:?
4. Tip load capacity:?
5. Other Special requirements
Then we will supply best offer to you.
Looking forward to have a nice cooperation with you!
If you show interest in our product, please do not hesitate to contact me!Â
Shandong Tavol Machinery Co., Ltd
Contact Person
Ellen Xiao
Mobile
0086-15269864317
Â
Â
>>>Product Description:Â
   QTZ40-4808 4ton load mini self erecting tower crane is a mini tower crane to lift various material in construction field. This mini crane is characterized by creative design with rational structure and reliable operation. Its maximum load is 4t, tip load is 0.8t, jib length is 48m, free standing height is 29m, maximum anchorage height can reach 120m. Equipped with all necessary safety devices, this self ereting tower crane is superior to its counterparts not only in its original design, attractive appearance and secure operation but also in its extraordinary speed-control ability and work efficiency.
>>>Specification for QTZ40(4808) 4ton Load Mini Self Erecting Tower Crane:
series
QTZ40
Standard Model
4808
Max. Lift Load
4t
Tip Load
0.8t
Free Standing Height
29m
Max. Anchorage Height
120m
Jib Length
48m
Mast size
1.5×1.5×2.2m
Lift MechanismÂ
Lifting Speed
(a=2)70/35/9 m/min
(a=4)35/17.5/4.5m/min
Lift motor
15/15/4kw
Wire rope diameter
12.5mm
Trolley Mechanism
Trolley speed
39/26 m/min
Trolley Motor
1.5/2.2kw
Slewing Mechanism
Slewing speed
0.62r/min
Slew Motor
3.7kw
Jacking Mechanism
Jack climbing speed
0.4m/min
Jack climbing motor
4kw
Voltage
380V/50Hz/3P
Luxury Operate Cabin, Schneider Electric Parts
>>>Load Capacity Diagram for QTZ40(4808) Mini Self Erecting Tower Crane:
Jib(m)
3-11
14
18
22
26
30
34
38
42
Fall=2(t)Â
 2
2
2
2.027
1.869
1.711
1.553
1.395
1.237
Fall=4(t)Â
 4
3.090
2.360
2.027
1.869
1.711
1.553
1.395
1.237
Range(m)
46
48
Fall=2(t)
1.079
0.8
Fall=4(t)
1.079
0.8
>>>Different Models of Tower Crane are Supplied:Â
Model
Standard Model
Jib Length/m
Tip load /t
Max Load/t
QTZ31.5
4208
42
0.8
3
QTZ40
4808
48
0.8
4
QTZ50
5008
50
0.8
4
5010
50
1.0
4
QTZ63
5010
50
1.0
5
5013
50
1.0
6
5610
56
1.0
6
QTZ80
5610 topless
56
1.0
6
5513
55
1.3
6
6010
60
1.0
6
6010
60
Vertical Drilling