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Tank production for the manufacturing of fire extinguishers

Three different welded seams require three different approaches.

Typically, these are handled in subsequent process steps at different stations of the manufacturing process. The fire extinguisher manufacturer must ensure that the welded seam is sealed sufficiently to stand up to the permanent pressure within the container. This permanent pressure creates an increased safety risk; because of this, pressurised extinguishers are subject to the Pressure Equipment Directive and must pass relevant tests and undergo regular maintenance.

These statutory regulations place high requirements on welded seams.  At the same time, the number of fire protection products sold is increasing continuously, and manufacturers of fire extinguishers must product high quantities to satisfy demand.

Customers who buy fire extinguishers expect maintenance-free, inexpensive products, while manufacturers of fire extinguishers want containers with perfect welded seams, in addition to reduced costs.

Requirements of the manufacturers on fire extinguishers

  • Perfect welded seams
  • Perfect sealed
  • Pruduction of high quantities
  • Reducing production costs

In the video: Tank production for the manufacturing of fire extinguishers

Hans Dieter Jung
Sales Director

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Production of fire extinguishers by forming and joining: the advantages

A fully-automated manufacturing process in a compact ...

... machine system is an optimal use of production space and cycle times

3 - 5 times higher welding speed with laser

Laser welding is an excellent choice for butt welds, which are welded quickly at a welding speed of 5-7 m/min with panel thicknesses of 1.2 to 2.0 mm typical for fire extinguishers.

System and process-related flaws at the start / end ...

... of the longitudinal seam of the pipe can lead to problems with the seal and rejections of the fire extinguishers.

Significantly less spatter compared to conventional methods

One problem with GMAW welding are the weld splatters created, which can require manual reworking and make the process more expensive.

Simplified welding connection for the base/lid

This type of welding does not create any corrosive edges.

Machinery and equipment for the production of fire extinguishers



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