SND-MAG Agglomerated Micron Diamond Powder for Precision Lapping & Polishing

SND-MAG Agglomerated Micron Diamond Powder for Precision Lapping & Polishing is a specialty industrial diamond abrasive in SinoDiam’s Micron Diamond Powder product family. It is positioned for manufacturers evaluating agglomerated diamond structures in controlled grinding, lapping and polishing applications.

Unlike conventional micron diamond powders consisting primarily of individual abrasive particles, agglomerated diamond powder contains larger secondary particles formed from multiple finer diamond grains. These structures introduce additional selection factors related to particle aggregation, morphology, structural integrity and abrasive breakdown.

The key technical distinction is between the primary diamond particles and the secondary agglomerates. Primary particles determine the characteristics of the individual diamond grains, while the size, shape and integrity of the agglomerates influence how the abrasive structure interacts with a workpiece or polishing medium.

SND-MAG is positioned for evaluation in precision lapping, fine grinding and polishing of selected hard-and-brittle materials. Candidate applications include sapphire, silicon carbide, optical glass, engineering ceramics and compatible substrate-processing operations.

Depending on the actual aggregate structure and polishing conditions, gradual abrasive wear or agglomerate breakdown may expose additional diamond cutting points. This is a potential mechanism for agglomerated abrasives, not a guaranteed self-renewal rate or established performance value for every SND-MAG size fraction.

SND-MAG may be assessed in polishing slurries, diamond compounds and selected bonded abrasive tools. Actual compatibility depends on agglomerate size, aggregate stability, liquid-carrier chemistry, bond retention and the complete process.

Agglomerated diamond is not automatically equivalent to true polycrystalline diamond. A collection of particles joined in an agglomerate is structurally different from a continuously bonded polycrystalline diamond grain unless the actual manufacturing and material-characterization data establish otherwise.

For grade selection, customers should specify both the required primary particle size and agglomerate size wherever applicable, together with the workpiece, polishing method, carrier or bonding system and target surface requirements.

The information above identifies the intended technical selection criteria for SND-MAG. Actual primary particle sizes, aggregate sizes, PSD, morphology, manufacturing process, binder content, strength, cleanliness and chemical specifications require current grade-specific confirmation. Historical values are not treated as verified supply or performance guarantees.

When selecting SND-MAG, customers should distinguish the individual diamond particle-size specification from the size distribution of the assembled agglomerates. These dimensions serve different functions and should not be treated as interchangeable.

What Should Be Evaluated in the Particle Size Specification?

Primary Particle Size: Request the individual diamond grain-size range or distribution when available. This helps describe the abrasive particles that make up the agglomerate.

Secondary Agglomerate Size: Specify the desired aggregate size and distribution. A larger secondary particle does not necessarily consist of correspondingly large individual diamond crystals.

D10, D50 and D90: Where available, these values may describe the primary particle distribution, the agglomerate distribution or both. The report must clearly identify which particle population was measured.

Size Distribution Width: Evaluate whether the aggregate-size distribution is suitable for the polishing system. An excessively broad distribution may create inconsistent abrasive contact in some applications.

Aggregate Oversize Content: Oversized agglomerates may be relevant to scratch-sensitive workpieces. The required limits and detection method should be selected according to the actual surface-quality requirements.

Measurement Stability: Dispersion and sample preparation can break apart weak aggregates. The measurement protocol should therefore distinguish intact agglomerates from dispersed primary particles wherever that distinction matters.

Particle Morphology: Representative optical microscopy or SEM images can help characterize agglomerate shape, size and texture beyond a nominal particle-size designation.

SinoDiam’s historical SND-MAG catalogue lists several micron-size examples, but their relationship to primary-particle and secondary-agglomerate dimensions has not been independently confirmed for this revision. No size is presented here as guaranteed current availability. Request the applicable product specification for each inquiry.