270D-Equivalent FeSi Powder for DMS | Milled Ferrosilicon 15%:
Milled Ferrosilicon 15% for Dense Media Separation (DMS) is a fine ferrosilicon powder designed for dense-medium applications where controlled particle size, chemical composition and medium performance are important to mineral-processing operations.
The available material is specified at approximately 14–16% Si with Al ≤1% and a controlled particle-size distribution of approximately 90 ± 5% passing 45 μm and D90 ≈ 44 μm. These characteristics can make the material suitable for DMS circuits used in diamond, manganese, lead-zinc and other mineral-processing applications, subject to the plant's technical requirements.
Where supported by the final technical data, the product can be evaluated as 270D-equivalent by relevant characteristics. It should not be represented as an original branded 270D product. Buyers can request the current TDS, COA, PSD analysis and chemical analysis before commercial procurement.
Table of Contents
09 SECTIONSWhat Is 270D-Equivalent Milled Ferrosilicon Powder?:
270D-equivalent milled ferrosilicon powder refers to a fine FeSi material whose relevant chemical and particle-size characteristics can be evaluated against the technical requirements commonly associated with DMS-grade ferrosilicon.
In Dense Media Separation, the performance of ferrosilicon powder depends on more than silicon content alone. Particle-size distribution, aluminium level, density, magnetic recovery characteristics and batch consistency all influence how the medium behaves during mineral separation.
The FeSi 15% material supplied for this application is a milled ferrosilicon powder with approximately 14–16% Si and controlled particle size. The current specification indicates approximately 90 ± 5% passing 45 μm, with a D90 of approximately 44 μm.
For a full technical overview of this grade, see our dedicated Milled Ferrosilicon 15% for DMS product page. The term 270D-equivalent is used here only to describe technical comparability where the available test data support such an evaluation. It does not indicate that the material is an original branded 270D product. Final suitability should always be confirmed against the buyer's plant specification and batch-specific technical documents.
Technical note: "270D-equivalent" should be interpreted as a technical comparison term, not as a brand designation. Buyers should compare the supplied COA and PSD analysis with their own DMS operating specification before purchase.
270D-Equivalent FeSi Powder Specifications & PSD:
Technical parameters for milled FeSi 15% powder intended for Dense Media Separation and heavy-media mineral processing. Final batch values should be confirmed against the applicable COA and PSD analysis.
| Parameter | Specification | Technical Relevance to DMS |
|---|---|---|
| Product | Milled Ferrosilicon Powder | Fine FeSi material for dense-medium applications |
| Silicon (Si) | 14–16% | Defines the FeSi grade used in the DMS medium |
| Aluminium (Al) | ≤1% | Controlled chemical composition for process consistency |
| Passing 45 μm | 90 ± 5% | Indicates the fine fraction available for DMS medium preparation |
| D90 | ≈44 μm | Particle-size characteristic used to evaluate PSD suitability |
| Application | DMS / Heavy Media Separation | Diamond, manganese, lead-zinc and mineral processing |
| Documentation | COA · TDS · PSD Analysis | Available for technical and procurement evaluation |
| Bulk Availability | Up to 359 MT | Suitable for bulk industrial procurement |
Particle-size distribution is a critical parameter when evaluating ferrosilicon powder for DMS. For a closer look at PSD ranges, see our milled ferrosilicon powder 15–45 μm reference page. Buyers should compare the supplied batch-specific PSD analysis with their own plant specification before confirming procurement.
How Milled FeSi 15% Is Used in Dense Media Separation:
In a Dense Media Separation circuit, milled ferrosilicon functions as the dense, magnetically recoverable solid used to establish the working medium. The powder is mixed with water and circulated through the DMS plant to create a suspension with a controlled operating density.
The purpose of using milled FeSi is not simply to increase the density of water. The particle-size distribution of the ferrosilicon influences how the medium behaves during circulation, separation and recovery. For this reason, industrial buyers normally evaluate both chemical composition and PSD before approving a DMS-grade material.
Why PSD Matters in DMS
A suitable particle-size distribution helps the FeSi medium maintain predictable behaviour during operation. Excessively coarse particles may affect medium stability and circulation, while an excessively fine fraction can influence viscosity and solids behaviour.
For procurement teams, parameters such as the percentage passing 45 μm and the D90 value therefore provide a more useful technical picture than the silicon percentage alone. To understand how production method affects these properties, see our comparison of milled vs. atomized ferrosilicon powder.
Typical DMS Applications
270D-Equivalent FeSi for Diamond & Mineral Processing:
Milled FeSi 15% can be used as a ferrosilicon dense-medium component in mineral processing circuits where controlled particle size, medium density and magnetic recovery are important operating requirements.
Diamond Processing
In diamond processing, dense media separation is used to separate particles according to density. A ferrosilicon-based medium provides the dense phase required for sink-float separation of diamond-bearing feed.
Mineral Processing
Ferrosilicon dense media can also be applied in heavy-media mineral processing for ores where density-based pre-concentration or separation is required. Buyers evaluating an alternative production route can review our atomised ferrosilicon powder 15–45 specification. The appropriate FeSi PSD and operating density depend on the individual plant circuit.
Technical procurement note: "270D-equivalent" is used here as a particle-size and application reference only. It does not mean that the product is branded or sold as a specific 270D commercial brand. Final suitability should be confirmed using the current batch COA, TDS and PSD analysis.
Milled FeSi 15% prepared for bulk industrial supply, Dense Media Separation and heavy-media mineral processing.
Bulk Supply of Milled FeSi 15% for DMS:
For mining companies, DMS plants and mineral-processing operations requiring commercial quantities of milled ferrosilicon, our FeSi 15% DMS material is available for bulk procurement with technical documentation and export logistics support.
| Parameter | Specification / Supply Information | Buyer Relevance |
|---|---|---|
| Silicon (Si) | 14–16% | DMS-grade low-silicon ferrosilicon specification |
| Aluminium (Al) | ≤1% | Controlled chemical composition |
| Particle Size | 90±5% passing 45 μm | Controlled PSD for dense-medium applications |
| D90 | ≈44 μm | Particle-size reference for DMS procurement |
| DMS Application | Dense Media / Heavy Media Separation | Density-based mineral separation |
| Magnetic Recovery | Suitable for magnetic recovery systems | Supports recovery and recycling of FeSi medium |
| Available Quantity | 359 MT | Current commercial stock |
| Minimum Order | 20 MT | Suitable for industrial procurement |
| Documentation | COA / TDS / PSD Analysis | Technical verification before purchase |
| Packaging | Bulk / Jumbo Bag — according to final order | Export-oriented bulk handling |
Bulk FeSi 15% Supply for Mining & DMS Operations
Bulk procurement of Milled FeSi 15% is intended for industrial users that require a consistent dense-medium material rather than small-volume laboratory quantities. The product can be evaluated for DMS circuits where controlled particle size, medium density and magnetic recovery are part of the plant's operating requirements.
Before commercial shipment, buyers can request the current batch documentation to compare the chemical composition and particle-size distribution with their plant specification. This allows procurement teams to evaluate the material using technical parameters rather than relying only on the FeSi grade name. Buyers seeking a finer chemical option can also review our micronized ferrosilicon Si 15% product line.
Request a Bulk FeSi 15% DMS Quote
Send your required quantity, destination and application to receive the current FeSi 15% DMS quotation.
How to Buy 270D-Equivalent FeSi Powder:
Buyers sourcing milled FeSi 15% for Dense Media Separation can request technical documentation, confirm the required quantity and destination, and receive a current commercial quotation based on the applicable batch specification.
Submit Your RFQ
Send your required quantity, destination country, application and preferred delivery terms. Bulk requirements from 20 MT can be evaluated.
Review Technical Data
Request the applicable COA, TDS and PSD analysis to compare Si content, aluminium level and particle-size distribution with your DMS plant specification. If your circuit requires a coarser cut, see our ferrosilicon powder Si 45% specification.
Receive the Current Quote
Commercial pricing is provided according to quantity, destination, packaging and shipping terms rather than using an outdated fixed website price.
Confirm Shipment
After technical and commercial approval, the order can proceed to packaging, export documentation and shipment arrangements.
Frequently Asked Questions:
What is Milled FeSi 15% used for in DMS?+
What is the silicon content of this DMS ferrosilicon powder?+
What is the particle size of the Milled FeSi 15%?+
Is this FeSi 15% equivalent to 270D?+
Can I buy Milled FeSi 15% in bulk quantities?+
Can you provide COA, TDS and PSD analysis?+
Conclusion: Milled FeSi 15% for Dense Media Separation:
Milled FeSi 15% is a specialized ferrosilicon powder for Dense Media Separation and heavy-media mineral processing. With a specified silicon range of 14–16%, aluminium content of ≤1%, and a target particle-size distribution of 90 ± 5% passing 45 μm, the material is designed for industrial DMS applications where controlled chemistry and PSD are important procurement criteria.
For commercial buyers, technical suitability should be evaluated against the applicable plant specification and batch documentation. COA, TDS and PSD analysis can be requested before confirming a bulk order. The material is available for industrial procurement in quantities from 20 MT, subject to current stock and final commercial confirmation.
For a broader overview of grades and chemistries, see our general ferrosilicon (FeSi) resource page. This article is published by Ferrosilicon.co, a technical and commercial resource for ferrosilicon and ferroalloy procurement.
Send your required quantity, destination and application to receive current technical and commercial information.
