The QNP40 internal climbing tower crane is one of the most advanced tower cranes in China, developed using microcomputer design and group technology. Meeting international requirements, the top slewing crane has horizontal arm support, trolleying, top slewing and hydraulic jacking. Its jib length is a maximum of 48m and the load moment is 400 KN.m. The horizontal jib crane has a freestanding height of 30m, a basic height (inner climbing) of 21.5m, maximum, and an attached height of 120m (2 falls).
Item | Unit | Magnification | |||||
α=2 | α=4 | ||||||
Rated load moment | KN . m | 400 | |||||
Max. load | t | 2 | 4 | ||||
Work radius | m | 2.5 – 48(40) | |||||
Load at max. radius | t | 08 | |||||
Hoisting height | Inner climbing height | m | 21.5 | ||||
Adhered | 1 0 0 | 60 | |||||
Outer size of whole crane | Base (cross girder) | m | 5.0x5.0 | ||||
Tip of jib to the slewing center | 32.5 | ||||||
Tip of balanced jib to slewing center | 1 0.7 | ||||||
Self-weight of whole crane | Independent | t | 21.41 | ||||
Adhered | t | 46.36 | |||||
Balanced weight | t | 8.0 | |||||
Hoisting speed | M/min | 60/30/13 | |||||
Slewing speed | M/min | 0-0.6 | |||||
Trolleying speed | m/min | 16/32 | |||||
Jacking speed | M/min | 0.4 | |||||
Other | Power supply | 50/60HZ | -380/440 ± 10% | ||||
Basic wind pressure in service | Pa | 250 | |||||
Basic wind pressure out of service | Pa | 800 |