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Thyssenkrupp AG, a German producer of iron and steel, has invested in Water Jet Sweden’s waterjet cutting technology to boost business and reduce costs.

Thyssenkrupp makes semi-finished or finished component-parts made of stainless steel and non-ferrous materials.

Its Dortmund Works processes steel, tubes, stainless steel, non-ferrous metals and plastics.

Before consignment to customers, it carries out slitting/cross-cutting, cutting, sawing, flame-cutting, milling, boring, grinding, preserving and coating.

In addition to iron and steel, there is the semi-finish work in plastics.

Traditionally, the cutting of parts has been done using sawing, laser or plasma cutting.

Thyssenkrupp is now using waterjet cutting equipment from Water Jet Sweden to perform heavy-duty cutting.

Using waterjet cutting means Thyssenkrupp’s customers have less work to do before building the delivered component parts into their own product.

In the Dortmund Works, one tonne of abrasive is consumed every day during the waterjet cutting of very hard materials.

Thyssenkrupp selected the NC 3560 DL waterjet cutter, which has a 6m long cutting table to meet the maximum lengths required by customers.

It also features linear drives, the main advantages of which are virtually no maintenance, the ability to move the two cutting heads independently in the X direction, higher accuracy to within 0.05mm and faster positioning speed of up to 30m/min.

The NC 3560 DL model incorporates the advanced Siemens 840D CNC system, especially adapted for Water Jet Sweden machines.

This system also features a wastewater cleaning system.

The amount of wastewater cleaned before discharge into the drainage system amounts to approximately 3200 litres a day.

Marcus Raback, works director for LC Edelstahl/NE-Metalle, said: ‘The advantages of waterjet cutting over other methods go further than the first obvious one of cold cutting.

‘We find plasma not at all suitable for cutting aluminium and we have found laser cutting not to be optimal due to insufficient up-time capacity and expensive running costs.

‘Waterjet cutting up-time capacity of 90 per cent is outstanding.

‘Our expectations that some of our customers would benefit also from the use of waterjet cutting were well-founded.

‘Many of them now, when placing their orders, specify that we use waterjet cutting in our processing preparation work before delivery.

‘They appreciate the beneficial effect of the cold cutting of the waterjet on the material, accuracy, superior finish, absence of burred edges and elimination of added preparation work.’

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