• METALS products
  • Welding
  • Resistance welding systems
  • Stitchwelder SWA 650

Stitchwelder SWA 650

Automated stitch welding machine for even higher production runs.

By forming one duct at the same time as another one is getting welded, the SWA650 is having an even higher production output than the SWA400. Additionally, this machine is capable for lengths up to 685 mm and can optionally add serrations to the ducts. The SW650 has an output up to 20 pieces per minute, depending on part specification. A typical tool change-over time takes maximum 10 minutes.


The SWA 650 with integrated destacker and roll former.


welded part, with optional crimping


Longitudinal seam


Technical data

Welding lengthminimum 50 mm | 2“
maximum 685 mm | 27“
Welding diameterminimum 80 mm | 3”
maximum 500 mm | 20”
Material thicknessgalvanised steel 0.4 – 0.7 mm, 24-30 gauge
stainless steel 0.4-0.7 mm, 23-28 gauge
Overlap6 mm | 1/4"
Copper wire2 mm round | 0.078" round
Weld speed3–12 m/min | 10 – 40 ft/min

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