Our H-beam automatic welding machine is available in two types, LHA gantry-type automatic welding machine and LHT double-cantilever type automatic welding machine. With AC inverter transducers, our H-beam automatic welding machine delivers smooth and reliable welding. It is also provided with a fast back tracking function. This automatic welding machine is fitted with a triaxial guiding rail for carrying out impartial welding. Additionally, the machine is e with an automatic solder delivering and recycling system. The LHT double column-beam automatic welding machine is able to process two beams of profiled steel at the same time, with the beam height unlimited by the welding machine.