Grades of Ferrosilicon

Supplier of different grades of Ferrosilicon - DMS Powders

There are different grades of Ferrosilicon available for different uses and applications. DMS Powders is a leading producer of Ferrosilicon in South Africa, distributing our high quality Ferrosilicon products locally and internationally. Ferrosilicon is widely used in the dense media separation of diamonds.

DMS Powders will help you to obtain the best grade of Ferrosilicon for your specific needs, ensuring that you are satisfied with our products and effectiveness within your process. Read more below about the different grades of Ferrosilicon, or contact us to get a quote and place your order today.

  • Atomised FeSi

    Coarse, Fine, Cyclone 60, Cyclone 40, DMS 70

  • Milled FeSi

    65D, 100D, 150D, 270D, 270F

Grades of Ferrosilicon supplied by DMS Powders

DMS Powders produces Ferrosilicon in different grades, used in dense media separation in diamond processing plants. The grade of ferrosilicon is determined by the following characteristics:

  • Medium Density: The ratio of Ferrosilicon solids in the medium directly determines the medium density, which can be increased or reduced by adding more Ferrosilicon or water to reach the desired density.
  • Medium Viscosity: The medium viscosity is determined by the medium’s resistance to flow (the consistency). Thus, the higher the medium density, the higher the medium viscosity will be.
  • Medium Stability: The medium stability is determined by the tendency of the solids present in the medium to settle out. A high stability medium is achieved by a high concentration of solids, fine particles size in distribution and irregular shaped particles (milled Ferrosilicon) amongst others.
  • Selection of the Medium: It is important to select the correct grade of medium for the specific separation application, that will fit the specific requirements of the diamond processing, dense media separation plant. The following aspects play a role in the selection of the ferrosilicon grade: density of separation required, size of ore to be treated, sharpness of separation required, and costs. Let DMS Powders assist you to obtain the best Ferrosilicon products for your application needs.



Our packaging has been specifically designed for:

  • Ease of handling
  • Safety
  • Product integrity
  • Durability
  • Water resistance
  • 125kg steel drums on pallets

  • 250kg plastic drums on pallets

  • 1mt & 2mt bags loose or on pallets.

Contact the global leaders of ferrosilicon producers - DMS Powders

Talk to a consultant at DMS Powders today for more information about our Ferrosilicon products for the dense media separation process. Our knowledgeable and experienced team will supply you with all the required information and technical support needed. When it comes to ferrosilicon products, DMS Powders produces a wide range of grades to suit any application. We produce and supply Atomised and Milled Ferrosilicon products, available in different quantities and easy to handle packaging.

We will assist you with your selection of medium according to the operating density for your specific application purpose, ensuring that you get the best ferrosilicon for your plant.