From the raw material to the strip all the way up to the finished product, the RFA operates fully automatically.
  • ANDRITZ in China
  • METALS products
  • Welding
  • Resistance welding systems
  • Annular flange welding machine RFA

RFA annular flange welding system

The fully automated stitch welder from the coil to the finish product

Depending on pipe diameter and pipe length, you will achieve a production output of 10-12 pieces per minute.

Flange piece with thread

Flange piece with thread

Flange piece without thread

Flange piece without thread

A different clamping and holding tool is required for every diameter. Retooling for a different diameter takes no more than 10 minutes, including change of material, clamping tool, as well as adjustment of the welding parameters.

Benefits at a glance

  • Complete mini production plant
  • Modular design
  • Short changeover time
From the raw material to the strip all the way up to the finished product, the RFA operates fully automatically.

From the raw material to the strip all the way up to the finished product, the RFA operates fully automatically.

Technical data

ParameterValue
Welding diametermin. 80 mm | 3.2"
max. 250 mm | 10"
Material thickness0.3-0.9 mm | 0.012-0.035"
Copper wire2.0 mm round | 0.078“
Overlap6.0 mm | 0.24"
Weld speed3-12 m/min | 10-40 ft/min

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