By utilising our expertise in cold-forming Copper, Dawson Shanahan laser nozzles give a very significant improvement in cut quality over conventional machined nozzles. Additionally it has been found that feedrates can be increased by up to 10% and still achieve improved cut quality. These advantages are a direct result of the mirror finish and curved internal nozzle profile.

Generally speaking, machined nozzles have an internal surface finish of around 1µm. Our cold-formed nozzles have a surface finish of around 0.1µm. This gives better, less turbulent gas flow resulting in the improved cut quality and speed demonstrated in the photographs below.

Image courtesy of
Laser Mechanisms Inc.

1/8" thick Stainless Steel plate cut using 0.060" standard machined nozzle.

Image courtesy of
Laser Mechanisms Inc.

The same plate cut using a Dawson Shanahan cold-formed nozzle and 10% faster feedrate.