Diamond Wheels

Diamond Wheels

Diamond  wheels for electric grinders are essential tools for working with precision and speed when roughing and profiling hard materials such as marble, granite and stone. A common example is the diamond cup cutter, which offers high material removal capacity and is used for levelling and flattening concrete. Compared to silicon carbide abrasives or abrasive discs, the diamond grinding wheel is available in different shapes and types, all of which are designed to be used with blenders thanks to the M14 universal thread.

Diamond grinding wheels are used on construction sites, by stonemasons and also in homes during the installation of artefacts to work on details. There are different types of diamond used to make a diamond grinding wheel, such as natural diamond and synthetic diamond. A diamond cup is made using a steel body that is then coated with diamond, offering a choice of abrasive grit. A coarser grit produces a diamond cutter for roughing, while a finer grit produces diamond cutters for finishing. Diamond burs for stone can be made from sintered, electroplated or brazed diamond.

Sintered diamond cutters consist of diamond sectors made from a mixture of industrial diamond and metal powders that act as a bonding agent. These sectors are hot-pressed through a process called 'sintering' and then welded onto a steel body. Sintered diamond grinding wheels require water for cooling and offer high stock removal on hard materials such as granite, natural quartzite and quartz.

Electroplated diamond wheels are made with an industrial diamond layer that is deposited on the steel body through an electrochemical process called nickel electroplating. Electroplated tools offer many advantages, allowing diamond cutters to be made with tight radii and maintain their shape throughout the tool life. They can be used dry and leave a good finish on marble, stone and travertine.

Brazed diamond wheels are produced by vacuum fusion between steel and diamond using a nickel-chrome mixture that fixes the diamond, creating a single body between the steel and the diamond part. This type of diamond grinding wheel is suitable for shaping and roughing hard materials such as granite, slate, basalt and porcelain stoneware. They can also be used dry.