Dense Media Separation Plants

DMS Powders

Dense Media Separation Plants and Ferrosilicon – DMS Powders

Dense Media Separation (DMS) plants across the world make use of Ferrosilicon powders for the extraction of diamonds from waste / diamond bearing material. The fact that this process of diamond extraction is so reliable and efficient, makes is a popular method for diamond extraction for diamond processing plants.

DMS Powders is a leading manufacturer of Ferrosilicon powders used n dense media separation, which is why many diamond processing plants rely on DMS Powders to supply them with the best products to fit their needs. For more information about our dense media separation powders, don’t hesitate to contact us today. A friendly consultant will advise you on the best Ferrosilicon products for your needs.

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

DMS Powders

What is a Dense Medium Separation Plant?

A dense medium separation plant facilitates the process called Dense Media Separation. During this process, gold, diamonds and other gems / minerals will be separated from the waste material, through the use of gravity.

The process requires the use of Ferrosilicon powders, which is mixed with water to form a fine suspension until it reaches the desired density. The diamond or mineral bearing material is the submerged into the fins suspension, in order for dense media separation to take place. Particles that are denser than the medium will report the process underflow as sinks, while less dense particles will report to the process overflow as floats.

There are a range of different Ferrosilicon grades available, as produced by DMS Powders. Ferrosilicon that is used in Dense Media Separation plants need  requires sophisticated production and quality assurance techniques. The right chemical composition and physical properties play an important role in the affectivity of the Ferrosilicon on Dense Media Separation processes.


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

DMS Powders has gained years of experience in the manufacturing of Ferrosilicon for the Dense Media Separation of diamonds. We supply a wide range of different Ferrosilicon grades, suitable for dense media separation. Enjoy the following benefits when making use of Ferrosilicon products from DMS Powders:

  • The narrow particle size distributions ensures predictable medium behaviour. This makes for an effective Dense Media Separation process.
  • The high magnetic susceptibility of the medium allows for excellent recovery.
  • High specific gravity of medium, to facilitate excellent media separation.
  • Operating cost are economical due to high specific gravity and magnetic recoverability of the medium.

Contact DMS Powders for more information about our Ferrosilicon products

Should you be in need of the services of a trusted producer of Ferrosilicon for use in your Dense Media Separation plant, contact DMS Powders today. We will advise you on your best option when it comes to the different grades and selection for your use in diamond processing. We supply Atomised and Milled Ferrosilicon products, conveniently packed for transportation and usage.

Do you have a question?
Feel free to contact us


+27 (0)16 360 5200