Launching Gantry / Beam Launcher

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This machine can combine 900 ton tyre trolley to work for double-line high speed Railway Bridge with box beams in the length of 20m, 24m and 32m.

1)Working environment and condition
·Launching concrete box beam with same length span or different length span, with ballast or without ballast.
·Different height of the concrete box beam in one bridge
· Surmountable slope 3 %
· Min. radius of the bridge 1400m
·Wind speed: 72km/h with load, 144km/h without load.

2)Main technical characteristics  
· When the launching gantry finishes placing concrete beams and the under bridge tries to launch forward,the whole machine is driven by the chain system of the small trolley under the launching leg. That can ensure a stable movement, and will never create additional force movement to the gantry.
· When the location of machine assembly is close to the launching jobsite, the launching gantry can move to the abutment itself and can also place itself on the pier to be ready to erect concrete box beams.
· After finishing erecting the concrete beam of one bridge, the launching gantry can move forward by itself on the deck or go through the existing deck or steel bridge.
· With the help of special transporting frame, the launching gantry can be moved on the railway basement or deck by tyre trolley.
·When it is necessary to go through certain areas with height limits or some narrow areas such as tunnels, the machine can be partly disassembled to reduce its section dimension. Then with the help of transporting the frame, the launching gantry can pass the limited area.  

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Q:Summary of bridge crane driver
Security, service and management.No model.The following for reference,
Q:Bridge erection of a small box girder of long time
It depends on the length of your box girder
Q:Bridge machine HS coding is how much ah
84798990 commonly used Longmen bridge erecting machine84798990 improved Longmen bridge erecting machine84798990 improved double beam bridge machine84798990 automatic bridge erecting machine84798990 ordinary Longmen bridge erecting machine84798990 common type of double guide beam bridge machine
Q:What are the advantages and disadvantages of the construction of the bridge by the mobile support method
In general, the bridge girder erection machine is to be prefabricated in the site of the beam to the bridge pier, the advantage is that the quality of the beam body control, erection speed, short construction period, suitable for prefabricated installation method.
Q:Bridge erecting machine belongs to portal or bridge crane
The bridge is generally used for loading and unloading containers, and the door is generally used in the container crane.Bridging machine and the above 2 are not the same.
Q:What kind of machinery is the bridge? Bridge or gantry crane
From the beam car handle, through the longitudinal shift, shifting, etc. will step off the beam erection of precast beams to piers. Hope to help you.
Q:What is the technical parameter of 30m/100t fixed guide beam of bridge erector?
Adapt to the maximum bridge longitudinal slope + 3 M + + + 3 + + 3Car rated speed (m/min) 1.5 1.5 1.5Car rated longitudinal walking speed (m/min) 4.28 4.28 4.28
Q:The difference between double guide beam bridge machine and single beam bridge machine
Single beam bridge machine:The single girder bridge girder erecting machine adopts a single bearing beam, and the bridge erecting machine is composed of a single main beam, a supporting leg, a hanging beam trolley, a moving mechanism, a transverse moving mechanism and an electric control system. Main girder structure generally adopts box type structure of light weight, high stability of the beam, the guide beam can be moved up and down, back and forth, transverse, achieve a heavily beam beam falling in place, continuous erection line, line, curve and other different types of bridges.
Q:Now the high-speed rail bridge frame span of the beam
But it is very different from the general sense of the crane. The requirements of the harsh conditions, and the existence of the beam on the line, or called the longitudinal shift. Bridge machine is divided into the erection of highway bridges, conventional railway bridge, passenger dedicated railway bridge, etc..
Q:What should be done before the erection of the bridge girder
But what should be done before the erection of the bridge frame? Here for you to explain! 1, bridge erecting machine at the end of the bridge is ready to assemble the beam, should be placed in the bridge at the vertical track, in order to frame beam; 2, the bridge machine cantilever to the next bridge pier; forward process should ensure the stability of truss. 3, the bridge machine in the back of the four hydraulic cylinder at the same time out, so that the bridge machine in the rear of the car to drive, pull the drive car to change the direction of its movement, auxiliary personnel quickly laying the longitudinal track. The hydraulic cylinder is driven by a hydraulic cylinder.

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