In the mining industry, ultra-fine grinding is required to increase recovery yields. A competent grinding media is therefore needed to provide a cost-effective and energy-efficient grinding solution. In this sense, at Valwin we have developed a sintering process for Zirconium Silicate which, when doped with a small amount of alumina,
achieves a homogeneous internal microstructure that gives our microspheres mechanical properties far superior to other zirconium silicate microballs present on the market.

For high-speed mills, ZSWIN-410 microballs are designed to be chemically resistant and offer exceptional mechanical performance, making them fully competent in the most demanding applications in high-speed grinding.

Zirconium Silicate microballs are widely used in high-speed mills in different sectors. The problem with this type of microballs is that their manufacturing process involves a melting process of the raw materials and during the sudden cooling process there is a risk of generating cracks and voids inside them, which significantly weakens the
mechanical properties of the microballs.

To avoid this problem, VALWIN does not use this melting process, but rather uses a sintering process for Zirconium Silicate, which is also doped with a small amount of alumina, to achieve a homogeneous internal microstructure, without internal gaps or cracks, and with an abundance of small crystals, which give our microballs mechanical properties that are much higher than the Zirconium Silicate microballs on the market.

In addition, ZSWIN® microballs have a high fracture resistance, which means that they can withstand the high stresses generated in the high-speed mills where they are used. Our microballs are successfully used in all types of modern high-speed mills in different sectors such as paints, mining, calcium carbonate, inks, etc.

TDS ZSWIN®