Ferrosilicon Suppliers in Gauteng

Ferrosilicon Suppliers in Gauteng

If you are looking for Ferrosilicon suppliers in Gauteng, DMS Powders can assist. DMS Powders is a leading producer of Ferrosilicon products in South Africa, distributing our products countrywide and internationally.

At DMS Powders we produce Milled and Atomised Ferrosilicon, in different grades, and will assist you to find the best Ferrosilicon product for your specific application. Talk to a consultant at DMS Powders today to get a quote and assistance regarding the Ferrosilicon products you need. Trust the leading Ferrosilicon producers in Gauteng to assist.

Atomised FeSi: Coarse, Fine, Cyclone 60, Cyclone 40, DMS 70
Milled FeSi: 65D, 100D, 150D, 270D, 270F

Ferrosilicon – Dense media separation powders application

Dense Media Separation Powders are used in the dense media separation of diamonds. This process involves the separation of Diamonds or other minerals from diamond / mineral bearing material by submerging it into a heavy liquid. The heavy liquid is formed by combining Dense Media Separation Powders, namely Ferrosilicon, with water in order to reach the required density that will facilitate the separation of material with a difference in density.

Grades of Ferrosilicon

DMS Powders will supply you with the right grade of Ferrosilicon (FeSi) powders. There are a number of different grades of Ferrosilicon available including:

  • Atomised FeSi: Coarse, Fine, Cyclone 60, Cyclone 40 and DMS 70.
  • Milled FeSi: 65D, 100D, 150D, 270D and 270F.

Choosing the right grade of Ferrosilicon is important for a successful dense media separation process. The following properties play an important role in the selection of Ferrosilicon grades:

Density of the Medium: The proportion of Ferrosilicon powders present in the liquid will determine the medium density. Density can thus be increased by adding more Ferrosilicon to the mixture. The density can be reduced by adding water to the pulp.

Viscosity of the Medium: The viscosity of the medium refers to the resistance to flow. The concentration, shape and size of the Ferrosilicon will ultimately determine to what extent the medium is resistant to flow.

Stability of the Medium: The tendency of the solids in the medium to settle out is referred to as medium stability. Stability plays a role in determining the behaviour of the medium in the separating process.


Our packaging has been specifically designed for:

Ease of handling
Product integrity
Water resistance

125kg steel drums on pallets

250kg plastic drums on pallets

1mt & 2mt bags loose or on pallets

Contact DMS Powders for Ferrosilicon products in Gauteng

Trust DMS Powders to supply you with the best grade and quality of Ferrosilicon products in Gauteng for you specific application needs. Talk to a consultant today for more information about our range of Atomised and Milled Ferrosilicon products, and packaging options available. Our products are conveniently packed for transportation and easy handling.

Do you have a question?
Feel free to contact us


+27 (0)16 360 5200