Sheet grinding

In addition to the usual G240 or G320, there is a wide range of options for other grits, coarse or fine. A low grit indicates a coarsely ground surface, for instance G36 or G60. This is applied when gluing sheet metal or non-slip applications. With G400 or G600, the grit is much finer and this is often applied from an aesthetic point of view, for instance in interior design projects. Or to prepare it for polishing. A fine grit corresponds with a low roughness value, as long as the previous grinding steps were carried out correctly.

Using a polished sheet means that your basic material is already maximally treated, which includes the corresponding costs. If it still requires much cutting, bending and welding, the perfect polish could go to waste. On the other hand, a completely untreated sheet is also not ideal, because this leaves a lot of manual polishing after assembly. Therefore, we developed a solution that meets both ends, especially ideal with thick, hot-rolled sheet metal. The mill scale is mechanically removed from the sheet and is completely flattened. Next, it is built up to a fine grit and low roughness value in stages. Here you assembly your product and then easily polish it. Or, you can outsource it to our safe and reliable hands.

If you are active in tank and appliance manufacturing for the food industry, or pharmaceutical industry, there is no escaping it: Roughness values such as Ra, Rz and Rt. The former, the Ra value, is most common. The intensity of the grinding is often determined by the material type. Sheets in the cold-rolled 2B-finish category usually have a low roughness value and only require a light grinding to reach the Ra value. Hot-rolled 1D are a lot rougher and require more intensive treatment to reach the required roughness values. Naturally, the material type is a decisive factor in the throughput time and price.

This finish is known under various names, such as Non-directional ground/brushed, Orbital ground, Vibes, Vibration ground, Excenter ground, Angel hair etc. In the end, we all mean the same, and the objective is a neat, sleek, homogeneous finish.

A non-directional finish, where the grinding tracks go in random direction. This is common in the kitchen industry as a finish on a kitchen counter or other design applications. A non-directional finish, combined with a nice colour can give a spectacular look, for instance in Façade projects. For more information, consult our Architecture page.