Tower Crane QNP40

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, QNP40

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).

Main Parameters of the Horizontal Jib Tower Crane

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