The gantry welding machine is widely used welding equipment for H-beam production line. This machine usually uses submerged arc welding. And when the machine is in welding work, it is appears that the workpiece is fixed while the portable frame moves.

     There is also frequency timing equipped as gantry frame.Moreover, there are also manual adjusting device to adjust shifting left and right, and leading arc device do mechanic tracxing to welding seam.