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Rail gauge


Web height


Flange width


Work-piece length

4000~15000mm or as user’s request

Welding type

Boat-type welding

Welding speed


Returning speed


Overall power


Submerged arc welding power: Zhouxiang MZ-1250;

ZHENZHONG MZ-1250; or American Lincoln DC-1000

Above are our standard model, it can be designed and

manufactured according to customer’s request.


The working principle of the double cantilever welding machine is similar with gantry type welding machine. The difference is, gantry type welding machine welds the H beam between rails, while double cantilever welding machine welds the H beam outside rails. It can weld the H beam web which is bigger than 1.5m, not limited by beam height. When it is single arc single wire welding , thetwo welders can be put on the machine trolley.


1.The web height of H beam is notlimited, it can weld large size H beam.


2.This machine not only can weld the H beam, also can weld the box beam by changing the arc guiding frame.


3.The gantry moving is frequency speed control, the speed can be adjusted according to the welding technology requirement conveniently.


4.Moving trolley is composed of two walking beams connected together. Similar to gantry welding, the walking trolley is driven by two motor reducers, forming a dual drive system that ensures smooth and reliable operation.


5.This machine can realize forwardand backwardwelding, which improves the welding efficiency greatly.


6.Seam tracking device is placed under welding beam, it can trackingautomatically, andkeep suitable distance between welding torch and welding seam, it has auto compensation function for H beam’s deformation.


7.Submerged arc welding power: Zhouxiang MZ-1250, ZHENZHONG MZ-1250 ; or American Lincoln DC-1000


8.Electrical control system is composed of one electrical control box and threeoperation panels, the electrical control box is fixed on oneend of moving beam, the three operation panels are fixed on the upper platform. They are placed separately, which is convenient for operation.