Is this your challenge ?

  • Hot spot removal, 
  • Waste decommissioning (change the waste category)
  • Extensive cleaning of expensive or strategic
    parts to allow their maintenance and then their
  • Preparation of inactive surfaces to give them a
    state close to mirror polish limiting the
    incrustation of subsequent contamination

The technology

In one step, this method cleans, passivates and polishes metal surfaces electrochemically. Polishing drastically reduces the incrustation of subsequent contamination, an added bonus of this specific method. The switchable AC/DC devices also facilitate direct current (DC) mode for high-gloss polishing.

Portable decontamination tool

  • AC/DC device from 1000 to 3500 W!

Chose the equipment according to your needs (price between 2 and 5 k€):

  • Decontamination of small or large surfaces
  • Portability (weight between 6 kg and 32 kg)
  • Autonomy (battery operated)
  • Productivity
  • Distance between the rectifier and the current rectifier (from a few metres to 100 m)
  • Automatic electrolyte supply system
  • This is simply connected to any cleaning device. A microprocessor calculates the optimum amount of electrolyte, which is then fed directly into the carbonfiber brush by a servo pump. As soon as the brush is lifted off the workpiece, the electrolyte supply stops; with a back pump that prevents dripping.
  • The flow rate is function of the power generated, the metal treated and the electrolyte used. The order of magnitude is 0.5 l / h.
  • Depending on the electrolyte used and the possibilities of waste acceptances, it is possible either to rinse the treated surface, or to wipe it with a smear consequently, the waste generated will be either the used electrolyte diluted with rinse water, or wet smears.
  • Brush, triple brushes,...

The newly developed carbon fibre brush (up to 2 million fibres are used per brush) are conducting high current to the work piece (current density up to 250 A/cm²). To maximise the cleaning, the fibres of the carbon fibre brush hug the shape of the work piece ; different brush types make any cleaning task easier and there are in-pipe brushes to allow for pipes and holes to be cleaned from the inside.

Advantages ?

Removal of a few microns of oxides or base metal in a very
short time

Different sizes of brushes (single size M, L, XL, XXL),
different shapes

Portable equipment can be installed on site very quickly
Since erosion is linked to the amount of current, the
thickness removed (microns) is controlled by the time of
the operation


The brush can be automatically supplied with electrolyte
(flow rate ≈ 0.5 l / h) and implemented remotely


Electrolyte consumption for brush mode use ≈ 0.5 l/h


Equipment costing between 1 et 5 k€

Decontamination of tools, small surfaces ?

Decontamination of large areas ?

There are several possibilities

Multi-brush mode

Surface cleaner with telescopic handle

Technical data sheet

Document Adobe Acrobat 196.5 KB

Published in May 2021 - Selected by InTechBrew

Document Adobe Acrobat 962.3 KB

Do you want to understand what chemical reactions are involved?

Watch this tutorial video which includes all the above indications and which explains how this process works (in French!)

For more information, tests ?