Welding Enclosures – Flexible

The Argweld® range of Flexible Welding Enclosures® have been designed for applications where a rigid chamber may not be economically viable or where space may be at a premium.

Typical applications include the  welding of titanium and nickel alloy components for the aerospace, medical and racing car industries, parts on bicycles, motor bikes and  for the welding of stainless steel components to eliminate the expensive cleaning of discolouration.

Apart from the standard models, special enclosures are designed and manufactured to suit all applications. These bladders have been used in nuclear and chemical industry applications for the handling of a wide range of products and materials, as well as in the pipeline industry with clam shell models to fit on and off pipes.

Argweld® Flexible Welding Enclosures® provide a very fast purging time down to a few parts per million (ppm) of oxygen. These ultra low cost welding chambers are ideal for titanium and zirconium welding and other reactive metals. Ideal for small production quantities of items that need total gas coverage, but where the cost of a rigid chamber box or similar would be financially impractical.


The flexibility of the Argweld® Flexible Welding Enclosures®  or Welding chambers make it considerably easier to weld and bring operator comfort and ease of use whereas rigid plastic or metal chambers can be very uncomfortable to work with. It is much more than a welding balloon. Standard round (circular) Argweld® Flexible Welding Enclosures® are available for immediate delivery. Rectilinear and special flexible enclosures can be designed and manufactured to order. The Argweld® Flexible Welding Enclosures® provide high quality at very low cost. The Argweld® Flexible Welding Enclosures® make purging down to a few parts per million very easy and fast, resulting in bright, shiny, oxide-free welds. Each Argweld® Flexible Welding Enclosures® contains an argon entry port and an exhaust valve to vent displaced gas to atmosphere.  Two pairs of sleeves and gloves are fitted to each enclosure and the glove ports are fitted with drawstrings to prevent the gloves and sleeves from blowing out and helps reduce the risk of damage by passing objects or people. The vertical sides of the enclosure are made from translucent plastic, while the top is constructed from an optically clear plastic to provide total visibility. The plastic used for Argweld® Flexible Welding Enclosures® is resistant against ultraviolet hardening and damage. A standard entry zip is provided together with a service panel having feed-through for a welding torch, earth cable, electrical wires for manipulators, etc. and water cooling pipes should they be needed. An additional feed-through is provided for a welding torch on the opposite side of the service panel, so that both left handed and right handed welders can work without having a long weld torch cable doubled up in front of them. Each enclosure is provided with a repair kit to allow on site repairs in the event of accidental damage. A standard posting port with purge gas hose entry port and vent is fitted to each model to allow small objects to be transferred into the enclosure without disturbing the quality of the purge environment. The standard port comprises a 600 mm long sleeve of 230 mm width when flat. Standard size range as follows:
  • 900 mm (36″) Circular diameter Enclosures
  • 1200 mm (48″) Circular diameter Enclosures
  • 1500 mm (60″) Circular diameter Enclosures
  • 1800 mm (72″) Circular diameter Enclosures
Standard zip lengths are as follows:
  • Zip 1430 mm long on the 900 mm diameter Enclosures
  • Zip 1900 mm long on the 1200 mm diameter Enclosures
  • Zip 2390 mm long on the 1500 mm diameter Enclosures
  • Zip 2900 mm long on the 1800 mm diameter Enclosures
Only parts which can go through these openings can be put into the standard Argweld® Flexible Welding Enclosures®. Rectangular Enclosures:
  • Large Posting Ports (ante chambers)
  • Lengths of 900, 1200, 1500 and 1800 mm
  • 3 sets of glove ports with sleeves and gloves
These and other specials available on request. Additional Options:
  • Extra pairs of glove ports
  • Special lock for the purging port to maintain purge argon in the chamber
  • Other sizes and shapes are available as non-standard items on special request
Special Note:  We do not supply the internal metal base plate, the internal purge line or the external stand to support the chambers.