Tower Crane KB-474A

(设备/材料)

状态: New

位置或存放国家: Russia

服务工程支持: Yes

保证: Yes

价钱: 要求价格

描述:

The KB-474A tower crane with an upper slew is designed for the optimal mechanization of construction and installation works during the construction of residential, civil and industrial buildings and structures of increased number of storeys with the mass of the installed elements up to 8 tons. It is ideal for monolithic construction. The KB-474A crane is a single modernized unified model and replaces the previously produced KB-473 and KB-474 cranes, which is ensured by a balanced range of standard sizes, modular and variable design. KB-474A differs from the previously produced cranes of the Rzhev Crane Plant in its increased load and height characteristics. Rich basic equipment and a wide range of options for expanding the configuration are designed to create and deliver a product in strict accordance with the consumer's requirements and expectations in the price-quality-technical capabilities ratio. Unification of the model with KB-473 and KB-474 allows for an optimal expansion of the fleet of previously purchased and mastered construction machines. Each factory sample is accompanied by a passport of technological history for subsequent service support and technical support. More than a quarter of previously released machines have special engineering solutions for non-standard technical operating conditions. The height of a free-standing stationary crane on a foundation after modernization is 54 m. It is possible to use sections of 12 m and 8 m in height to speed up installation. The basic model allows increasing the lifting height to 174 m. The maximum possible lifting height of the load is 234 m. When increasing the height, the crane is attached to the building with technological connections. The crane is installed by building up using a hydraulic installation device. The crane can be equipped in a "city" version without a mounting clamp with sections of increased height.

概观:

Parameter name	Unit of measurement	Crane KB-474 versions
Parameter name	Unit of measurement	-04	-00	-01	-02	-03
Maximum load moment	tm	132	164
Load capacity:
– maximum with 4-fold reeving and lifting height up to 162 m	T	8
– maximum with 2-fold reeving and lifting height over 162 m	T	4
- at maximum reach	T	1,2	2.0	2.5	3.1	3.8
Departure:
- maximum	m	55	50	45	40	35
– with a maximum lifting capacity of 8t	m	16.5	20.5
– with a maximum lifting capacity of 4t	m	28	33
- minimum	m	3.2
Lifting height:
– maximum with 2-fold reeving of the cargo rope	m	234
– maximum with 4-fold reeving of the cargo rope	m	162
- free-standing crane	m	54
Execution according to GOST 15150-69	-	U1
Wind region according to GOST 1451-77	-	I, II
Permissible wind speed:
– for the operating state with 2-minute averaging at the height of the anemometer installation	m/s	20
- for non-working condition at a height of 10 m	m/s	24
Rotation angle, not less than	hail	1080
Environment in which the crane can be used
- temperature	°C	±40
- seismicity	score	6 inclusive
- explosion hazard		explosion-proof
- fire hazard		fireproof
Crane rotation frequency	rpm	0.7
Classification group (mode) according to ISO 4301/1
- crane	-	A4
- mechanisms	-	M3
Weight
- constructive	T	74.8	74.2	73.6	72.7	71.7
- counterweight plates	T	8.7	7.7	5.8	2.9	0.7
- general	T	83.5	81.9	79.4	75.6	72.4

Speeds


up to 3.5 t	45 m/min		39 kW
from 3.5 to 5.5 t	30 m/min
from 5.5 to 8 t	22 m/min
smooth landing of cargo of maximum weight	2.4 m/min	4.8 m/min
up to 1.75t		90 m/min
from 1.75 to 2.75 t		60 m/min
from 2.75 to 4t		44 m/min
	0…0.75 rpm		2 x 5.0 kW
with maximum load weight	0 … 30 m/min		5 kW
up to 2.75 t	0 … 45 m/min		5 kW