A fine grinding mill is a machine that grinds mineral ore into standard particle sizes for easier mineral extraction.

There are many ways to extract minerals from ore. For example, when tiny grains of gold are spread through a gravel deposit the gravel is poured onto a table that is coated with mercury. When the table is vibrated the gold grains work their way to the table surface and combine with the mercury.

In many countries, there are a bunch of mercury-free gold mines. These mines are government authorized. These mines separate sulfide minerals from others in order to obtain their sulfur. In this case, the conglomeration of minerals might be finely ground up and then vigorously mixed in a tank of water through which air is being bubbled. 

In this process, which is called flotation, the sulfide minerals cling to the bubbles and are collected from the froth that spills over the top of the tank.

As mineral prices soar due to the boom in economies like China and India, it becomes more and more economically viable to reprocess that tailing from old mines using new technology.

As South African Mines have discovered, the Deswik mill has many distinct advantages over conventional mills.

The Deswik product has a highly variable speed hydraulic drive, patented vertical turbo disc impeller, inert bead media, small footprint, high availability, shorter delivery times, and high energy efficiency. The simple and robust design of the vertical mill means ease of maintenance and higher availability.

The mill can offer greater mineral recovery at reduced capital and running costs. The Deswik mill is of vertical construction, manufactured in mild steel/stainless steel, with all wetted parts lined with hard-wearing and contamination-free polyurethane resin. The chamber is water jacketed for cooling. A separate heat exchanger system is also available.

The impeller is a patented turbo-disc design unique to the Deswik mill. It is designed in such a manner that its assembly is modular and the configuration may be easily changed to achieve different end product size and distribution characteristics.