Single torch
The device is actually moving a welding torch along the seam. It allows the torch to move up and down, to move left and right and even to change the angle with the pipe surface.
![](https://vermaat-technics.nl:443/images/tt.php?src=https://vermaat-technics.nl/wordpress/wp-content/uploads/2013/09/single-torch.png&w=495)
Single torch
The device is actually moving a welding torch along the seam. It allows the torch to move up and down, to move left and right and even to change the angle with the pipe surface.