Precast Beam Moving Gantry Crane

Descrição

Precast beam moving gantry crane is a large tonnage tire gantry crane, designed for lifting, moving, loading and unloading operations in bridge precast girder yard. Equipped with special precast girder spreader, it can work with girder trucks to efficiently complete the installation of the whole span of concrete box girders. The machine is widely used in large-scale road and bridge construction projects, such as highway, railroad, high-speed railroad and intercity railroad, to meet the needs of high-intensity construction.

Dafang rubber tire girder moving gantry crane adopts full hydraulic control system, with straight line, inclined line and in-situ steering function, flexible and efficient operation. The equipment is equipped with PLC intelligent control system, integrated anemometer and all-round safety monitoring to ensure operational safety. The power system is equipped with Cummins high-power turbocharged diesel engine, and the hydraulic system adopts Rexroth/Buch high-end brand, which makes the whole machine with stable performance, high safety level and durable quality.

Dafang supports customized precast girder moving gantry cranes with rated lifting capacities ranging from 10 to 450 tons and maximum spans up to 35 meters. Depending on customer needs, a single gantry crane can independently lift up to 450 tons of weight, while the maximum lifting capacity can be up to 900 tons when the two machines are working together, which is suitable for lifting and loading tasks of super-large components.

Caraterísticas

Specially designed for lifting, transporting and moving prefabricated beams, steel frames, molds, etc., multi-functional in one.
Flexible walking modes: straight, diagonal, traverse, in-situ rotation, adapting to complex working conditions.
When steering under heavy load, the support cylinder automatically supports the ground to reduce tire pressure and prolong service life.
Four-point lifting and three-point balanced lifting system ensures even wire rope force, safety and stability.

Aplicação

Lifting, moving, and transporting precast beams in bridge construction sites.
Handling heavy concrete girders and steel structures in prefabrication yards.
Assisting in the installation of box girders for highways, railways, and urban transit systems.
Used for large-scale infrastructure projects, including high-speed rail and intercity rail construction.

Technical Specification

Lifting capacity		T	900(without spreader)
Span		m	38.5(only 36m)
Lifting height		m	12
Center distance between two rails		mm	1200
Speed	Hoisting	m/min	0.05~0.5~1(empty load)
	Traversing		Hydraulic push rod
	Traveling		1~10~12(empty load)
Electric hoist	Type		WH164 201~12D
	Lifting capacity	t	20
	Hoisting speed	m/min	3.3
	Traveling speed		14
	Velocidade de elevação	m	12
	Duty		A3
Empty load steering		Degree °	90
Wheel base		m	16(Clear distance 7.73)
Concrete girder model		m	20,24,32
Steel track recommended			P50 P60
Max. Wheel load		KN	225
Duty			A3
Total weight		t	505
Total power		KW	259
Power source			350 KW diesel generating set