Milled Ferrosilicon Supplier – DMS Powders

Ferrosilicon for Iron Ore Processing

Ferrosilicon, an alloy of Silicon and Iron (FeSi), is a product used in the processing of iron ores and other minerals. The Ferrosilicon is used in the process of Heavy Medium Separation, which facilitates the separation of iron ore from other material.

DMS Powders manufacture Ferrosilicon for use in Dense / Heavy Medium Separation, supplying products in various grades and specifications. You will get the best Ferrosilicon products for your iron ore separation process from DMS Powders. Contact DMS Powders today for more information about our Ferrosilicon products for your Heavy Medium Separation process.


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

Heavy Medium Separation for Iron Ore Processing

Dense Medium or Heavy Medium Separation is an effective process that is used for the initial or further separation of iron ore,  diamonds and other minerals from mineral-bearing material extracted from mines. This process involves separation via gravity, and is also referred to as the sink-float method. As the name suggests, gravity is used to separate the different materials with different densities. Heavier material will sink to the bottom, while lighter material will float. This method is very effective when it comes to mineral processing and separation techniques, as it is easy, efficient and cost-effective.

Because the density of minerals vary, different Ferrosilicon products are required for different processes. DMS Powders manufacture a selection of Ferrosilicon powder with different behavioural characteristics, which include Density, Viscosity and Stability, which are interrelated.

DMS Powders manufacture Milled and Atomised Ferrosilicon products for Heavy Medium Separation processes. Milled Ferrosilicon is milled to achieve particles of specific sizes, and is available in 65D, 100D, 150D, 270D and 270F. Atomised Ferrosilicon is achieved through a different process that involved atomised steam, in order to get more spherical shaped particles. Atomised Ferrosilicon from DMS Powders is available in Coarse, Fine, Cyclone 60, Cyclone 40 and DMS 70.


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 – Leading supplier of Ferrosilicon

DMS Powders is a leading supplier of Ferrosilicon products in South Africa, supplying our products to clients across the country and internationally. DMS Powders mainly supply Ferrosilicon Powder for use in diamond processing, in Dense Media Separation processes. We manufacture Ferrosilicon products in different grades and specifications, ensuring that you get the best products for your diamond or iron ore processing.

Packaging and transportation of our Ferrosilicon products

You can rest assured that our Atomised and Milled Ferrosilicon products are conveniently packaged and available in different sizes for safe and easy handling and transportation. Talk to a consultant today about your Ferrosilicon requirements and to order your Atomised or Milled Ferrosilicon for iron ore processing.

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+27 (0)16 360 5200