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QTZ40(4808) 4ton Topkits Tower Crane of Construction

QTZ40-4808 building and construction equipment tower crane is a mini tower crane to lift various materials in construction field. It 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, and free standing height is 29m, maximum anchorage height can reach 120m. Equipped with all necessary safety devices, this construction equipment 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.

max .load :	4ton
jib length:	48m
free standing height:	29m
max anchorage height:	120m
mast size:	1.51.52.2m
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Model: QTZ40(4808) 4ton Topkits Tower Crane of Construction
Brand: TAVOL
Code: 84262000

Product Description

Product Description

1-Product Description:

QTZ40-4808 building and construction equipment tower crane is a mini tower crane to lift various materials in construction field. It 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, and free standing height is 29m, maximum anchorage height can reach 120m. Equipped with all necessary safety devices, this construction equipment 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.

2-Specification

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 Mechanism	Lifting Speed	(a=2)70/35/9 m/min (a=4)35/17.5/4.5m/min
	Lift motor	15/15/4kw
Trolley Mechanism	Trolley speed	39/26 m/min
	Trolley Motor	1.5/2.2kw
Slewing Mechanism	Slewing speed	0.72r/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

3-Product Feature

1)Hoisting Mechanism 3-Product Feature

Three-gear speed modulation by electrical motor or frequency conversion, giant winch.

2)Rotation Mechanism
Speed modulation with frequency conversion, stable break, accurate position, outstanding on performance and operation all around the world.

3) Trolley Mechanism
Speed modulation with frequency conversion, less concussion, stable operation.

4)Control System
PLC control, auto diagnosis on electric malfunction, corresponding alarm on light and sound, key components adopting international top brand product.

4-Safety Features

1	Torque limiter	Control torque, it will warns when lifting weights reach to 90% of rated lifting torque. When reach to 110% of the rated lifting torque, it will limit rising upwards and trolley.
2	Weight limiter	Control the maximum lifting capacity, lifting weight reach to 40% of the rated capacity, limit high-speed lifting; lifting weight reach to 110% of the rated capacity, limit the lifting up
3	Height limiter	Control the lowest and highest extreme position of lifting hook
4	Slewing limiter	Control the extreme turns number of turn left and right
5	Amplitude limiter	Control trolley limit position of inward and outward
6	Overload protection	If the material is over the capacity, the crane will give a sharp warning for protection itself
7	Emergency brake	If the operation staff encounter some emergency situation, we could start the emergency brake system to protection the related treasure
8	Control Method	Room control or remote control to avoid any injury to the operation staff
9	Main lifting motor	with thermal protection and currency protection