This machine is furnished two submerged arc welders to weld two H beams at the same time.
| Model | LHA | LHT |
| Applied flange width | 200-800mm/1000mm | 200-800mm/1000mm |
| Applied web height | 200-1500mm | 200-2000mm |
| Applied beam length | 4-15/18m | 4-15/18m |
| Flux recovery sys | 100kg*2 | 100kg*2 |
| Main machine power | 9kw(exclude welding power) | |