Patented copper-wire electrode rollers
  • ANDRITZ GROUP
  • METALS products
  • Welding
  • Resistance welding systems
  • Stitchwelder VSTW-1000/1270/1540

VSTW-1000/1270/1540

The manual stitch welder for longitudinal seams

The stitchwelder is an all-purpose machine, which is effective in any environment due to its simplicity and robustness.

Money

With the stitchwelder, a high-quality weld seam can be made without any adverse effect on the material to be welded. The electroplating remains undamaged, eliminating the need for expensive reworking, such as sealing or repainting. The weld seam is free of defects and meets all quality requirements in full.

Time

The recyclable copper-wire electrodes ensure that there is no need for time-consuming reworking of the work pieces. The use of copper wire has significantly reduced the amount of necessary maintenance on the weld rolls and therefore increased the lifespan of the rolls as well.

Material

Material thicknesses from 0.4 to 1.0 mm (0.016” to 0.04”) for electro-plated, cold-rolled or stainless steel can be welded with the stitchwelder. The stitchwelder has an adjustable weld speed of 3 – 15 m/min (10 – 49 ft/min), creating a productive and efficient machine. The weld seams created are completely air-tight. The system is simple to tune to various product dimensions and part geometries. The VSTW is available with arm lengths of 1,000 mm, 1,270 mm, and 1,540 mm (40”, 50”, 60”)

The VSTW-1000 stitchwelder

The VSTW-1000 stitchwelder

Benefits at a glance

  • Robust and simple design
  • Easy handling
  • Continuous current welding or roll spot welding
  • Cold-rolled steel can be processed
  • Galvanized steel can be processed
  • Stainless steel can be processed
  • Over 2,000 sold machines world-wide
Patented copper-wire electrode rollers

Patented copper-wire electrode rollers

Technical Data

ParameterValue
Welding lengthmin. 75 mm | 3“

max. 1,000 mm / 1,270 mm / 1,540 mm | 40“/50“/60“
Welding diametermin. 75 mm | 3"
max. 1,000 mm | 40"
Material thickness0.4 – 1.0 mm | 0.016 – 0.04"
Overlap6.0 mm (0.24”) for 1,000, 8.0 mm (0.31”) for 1,270 + 1,540
Copper wiremin. 2.0 mm | 0.078”
max. 5.0 mm | 0.196”
Weld speed3 – 15 m/min | 10 – 49 ft/min
(adjustable)

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