Water-jet cutting | ROSTFREI-STAHL
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Water-jet cutting

Precise cuts with water and sand

As an expert in sheet metal working, we are able to apply all established stainless steel cutting methods in-house. The method that is used in each individual case depends on numerous factors. Particular attention needs to be paid to the intended purpose of the stainless steel. Our headquarters in Netphen-Deuz (Siegen-Wittgenstein district) are home to a powerful water-jet cutting machine. Our cutting-edge water-jet cutting machine produces precision stainless steel cuts.

What is water-jet cutting?

The water-jet cutting of stainless steel is a production technique that we have been using for decades. The technology has been continuously refined over time. In 1990, the water-jet cutting of stainless steel took a major step forward with the addition of fine-grain garnet sand: since then, it has been possible to produce precise cuts of even very thick plates.

We have actively accompanied the development of water-jet cutting over a long period of time with our own water-jet cutting machines. This is another reason why we consider ourselves pioneers in water-jet cutting. Even today, our in-house machinery includes four powerful water-jet cutting machines. With respect to the technology that our company uses for the water-jet cutting of stainless steel, we rely on abrasive water-jet cutting. This means that our water-jet cutting machine uses water as well as garnet sand for the water-jet cutting of stainless steel.

How does an abrasive water-jet cutting machine work?

In simple terms, the abrasive water-jet cutting process involves the use of sand and water. The cutting capacity of our water-jet cutting machine is achieved through the specific combination of a concentrated high-pressure water jet of 4,000 bar and the rounding impact of a fine-grained abrasive medium. Abrasive water-jet cutting of stainless steel produces high-precision cuts for maximum sizes of up to 6,000 x 3,000 x 100 millimetres. The key features of the water-jet cutting of stainless steel are:

  • High degree of accuracy to tenths of a millimetre
  • Impressive quality of the cuts
  • Low surface roughness
  • Little or no need for post-processing
  • No structural changes due to heat application

The rounding effect of the water-jet cutting of stainless steel enables burr-free cutting and also forms the basis for the production of stainless steel components with the narrowest tolerance limits. Short process and throughput times make water-jet cutting technology ideal for machining larger lot sizes. At the same time, our water-jet cutting machine is efficient enough to produce small series cost-effectively. Another benefit of water-jet cutting is that the machining of stainless steel parts does not result in any significant heat development on the part. This means that there is no need to fear a negative influence with regard to further processing or the subsequent characteristics of the stainless steel when using the water-jet cutting technology.

Abrasive water-jet cutting – benefits at a glance

The abrasive water-jet cutting process that we use is an established method for the gentle and precise machining of stainless steels. The combination of high water pressure and the grinding effect of the fine-grain garnet sand means that abrasive water-jet cutting has many benefits:

  • Abrasive water-jet cutting allows precise cuts with the narrowest tolerance limits to tenths of a millimetre to be achieved when machining stainless steel. This makes abrasive water-jet cutting ideal for high-precision cuts.
  • Our modern water-jet cutting machines ensure an impressive cutting quality with a low surface roughness.
  • Abrasive water-jet cutting requires only a small amount of past-processing, if any, on the machine part. With abrasive water-jet cutting, deburring takes place during the cutting process.
  • Abrasive water-jet cutting transfers almost no heat to the part. This means that even hardened steels are protected during machining.
  • There are absolutely no structural changes on the part's cutting edges when using abrasive water-jet cutting.

Your benefits:

  • High accuracy (in tenths of a millimeter range)
  • High cut quality (low roughness)
  • No rework needed
  • Cutting without heat input

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