The surface treatment method based on the iron oxidation principle as the suitable supplement following heat treatment is provided with modern technology in a very environmentally friendly operation. Either large parts in baskets or small parts in the barrel can be processed.

Bath dimensions : 700 x 180 x 200 mm, max. parts weight 40 kg

As the suitable pre-processing before the blackening, steel-grit blasting can be used. It is suitable also for surface levelling following annealing without a controlled atmosphere.

Box dimensions 500 x 600 x 700 mm, max. parts weight 50 kg