Pipes, tubes and strips

Piping in the food and pharmaceutical industries must remain free of adhesion at all times in order to prevent bacterial growth and more. The product that goes through the pipes should flow through effortlessly, which is why smooth internal surfaces are required. Up to 2 mm wall thickness, you can often choose dairy tube in 304/316 stainless steel, which is already manufactured very smoothly. In the case of deviating, more special types of material and thicker walls, the internal Ra values are often rougher and should be reduced by grinding.

Van Geenen has 3 machines for internal pipe grinding, in the following diameter range.

In addition to the very common K240 / K320 grinding, Van Geenen has very good options for high-gloss tube polishing. In various gradations, from shiny to Super Mirror 8/9.

Depending on how the pipes are processed further, it can be determined how intensively the pipes are pre-treated.

In the metalworking industry, kilometres of tubular profiles are processed to make frames, railings and structures. Using unprocessed tubes is not done and it is recommended to first grind and/or polish them mechanically.

When cut parts come off the cutting machine, they often have a rough edge that needs to be touched up. As for the top and bottom, the parts can be made of ground sheet or they can be ground and/or polished individually.