China Construction Machinery Ce, ISO and GOST Certificated 8t Self-Erecting Tower Cranetower Crane (QTZ80-TC5513) -with Jib 55m, Find details about China Tower Crane, Crane from Construction Machinery Ce, ISO and GOST Certificated 8t Self-Erecting Tower Cranetower Crane (QTZ80-TC5513) -with Jib 55m
Mechanical load rate | Hoisting mechanism | M5 | ||||
swing mechanism | M4 | |||||
luffing mechanism | M4 | |||||
Hoisting mechanism | electromotor | type | YZRDW250M1-4/8 | |||
power(kW) | 30/30 | |||||
Limiter of height | type | FKDX-G | ||||
steel wire rope | type | 6X37-15-1770-I | ||||
Max. Pulling force | 20000 | |||||
falls | a=2 | a=4 | ||||
Hoist speed(m/min) | 80.36 | 41.05 | 39.37 | 20.11 | ||
Rated hoisting capacity(t) | 2 | 4 | 4 | 8 | ||
Min. stable descending speed | m/min | ≤7 | ||||
swing mechanism | electromotor | type | YZR132M2-6 | |||
power(kW) | 3.7×2 | |||||
speed(r/min) | 908 | |||||
Reducer | type | XX4-100.180 | ||||
ration | 180 | |||||
Hydraulic clutch | type | YOX280A | ||||
hinge pins of swiveling | modulus m | 12 | ||||
tooth number z | 16 | |||||
modification coefficient | 0.5 | |||||
Swing speed | r/min | 0.64 | ||||
Swiveling Bearing | Straight 4 point contact ball type bearings | type | 011@45@1400 | |||
modulus m | 12 | |||||
tooth number z | 131 | |||||
Hydraulic jacking system | electromotor | type | Y132M-4B5 | |||
power(kW) | 5.5 | |||||
Oil cylinder rated working pressure | M pa | 25 | ||||
Max lift force | t | 50 | ||||
Cylinder stroke | mm | 1600 | ||||
Mounting space | mm | 2070 | ||||
Cylinder diameter | mm | φ160 | ||||
oil cylinder piston rod diameter | mm | φ110 | ||||
Climbing Speed | m/min | 0.4 | ||||
luffing mechanism | electromotor | type | YDEJ132S-4/8 | |||
power(kW) | 4.5/3 | |||||
steel wire rope | type | 6×19-7.7-1550- | ||||
Reducer | type | BL22-43-3.3 | ||||
ration | 43 | |||||
ranging speed | m/min | 44/22 |
QTZ80 Tower Crane is a new type of construction tower equipment that is researched and designed by Institute of Building Mechanization of China Academy of Building Research based on large formwork construction technology. It has the following characteristics:
1) Lifting multiplying factor switchover automatically, without operator's intervention.
2) Ahead of all domestic competitors, we are the first manufacture to adopt lifting rope verticality limit mechanism, which decreases the lifting rope vertical angle under free load lifting mode, and highly improves the tower crane steering performance.
3) Our tower sections are exchangeable with the POTAIN tower sections, which provide our customers more conveniences.
4) We adopt to use Dual drawbars structure on lifting boom, which enables the lifting boom to be under no stress at lifting surface other than uniaxial stress, and moreover, it gets rid of the stress peak. It greatly improves the fatigue safety performance of lifting boom.
5) Adopts VVVF stepless speed variation device for lifting, radius changing and slewing mechanisms, to make sure it works steadily and effectively, it also lowers the maintenance cost.
6) The equipment adopts to use non-contact computer control system, which provides the high reliability and full functions to avoid drivers' miss-operation.