Mining Weekly

Ceramic wear solutions supplier Multotec Wear Linings has developed a medium-density (MD) alumina ceramic tile for low- to medium-wear applications, which it says will lead to cost savings in coal and power generation plants.

“Proudly developed in South Africa, this unique tile is strategically positioned between the less wear-resistant capabilities of rubber or polyurethane . . . and the high performance of high-density alumina ceramic tile solutions,” says Multotec Wear Linings national sales manager Mark Jarret.

The Multotec MD ceramic tile is a response to customer requirements for a more cost-effective ceramic wear tile in industries like coal and power generation, where the cost of high-density alumina tiles proved prohibitive in the past. Jarret explains this was due to end-users’ major focus on short-term cost cutting in lieu of long-term cost savings.

“This new fit-for-purpose product is not a replacement for high-density alumina tiles, but is rather application specific and performs like basalt tiles. The MD tile has the advantage of a uniform wear rate throughout its life,” he adds.

This product is also larger in size, resulting in a faster installation time; while traditional sizes require 67 tiles for every square meter, there are only 45 MD tiles in a square meter.

The MD tiles are also substantially lighter than the high-density tiles, creating less stress on the steel structures on which the tiles are installed, says Jarret, adding that the nonstandard size and colour of the Multotec MD tile ensures that it is easy to distinguish from the normal, white high-density tile and, therefore, misapplication is prevented.

In addition, the tile work polishes to a very smooth finish, lowering the friction coefficient, improving product flow over the tiles and reducing product hang-up in critical areas. The Multotec MD tiles are also easier to cut, which speeds up maintenance activity and reduces downtime.