What to do if my Thermal Arc Welding System has inconsistent wire feed?
- RRichard AdamsAug 5, 2025
Inconsistent wire feed can be caused by several factors. The wire spool brake may be too tight, causing the feed roller to slip, or too loose, leading to wire tangling. Make sure you are using the correct 'U' groove drive feed roller matched to the aluminium wire size you are welding. Misalignment of inlet/outlet guides can cause the wire to rub, reducing feedability. A liner blocked with wire debris, possibly from using an incorrect feed roller groove shape or size, can also be the cause. Finally, an incorrect or worn contact tip can lead to arcing inside the tip and wire jamming.