Micron Size & PSD
Compare size designations, particle-size distribution, measurement methods and oversized-particle requirements.
SinoDiam International · Industrial Diamond PowdersMicron Diamond Powder
Micron Diamond Powder
for Precision Grinding, Lapping & Polishing
SinoDiam supplies micron-size diamond abrasives for manufacturers of precision grinding tools, lapping compounds, polishing slurries and specialized industrial diamond products.
Explore three general-purpose micron grades and four specialty products. Compare particle characteristics, grading requirements, application methods and the information needed for technical evaluation.
SND-M05 · Economy
SND-M10 · Standard
SND-M15 · Premium
4 Specialty Products
Particle size and performance specifications are confirmed by individual grade and application.
SinoDiam Micron Diamond Powder · SND-M Series
01 / Family Overview
Micron Diamond Abrasives for Industrial Surface Processing
Micron diamond powders are selected for fine grinding, lapping, polishing and specialized manufacturing processes where abrasive size, morphology, surface condition and process compatibility matter.
Micron diamond powder is supplied in micrometer-scale abrasive fractions for applications that require finer particle-size selection than conventional coarse mesh diamond grit. Actual particle behavior depends on the grade, distribution, morphology, surface condition and working environment.
SinoDiam organizes its portfolio into three general-purpose grades and four specialty products. These two groups serve different selection needs: the general series provides a grade-positioning framework, while specialty products address distinct manufacturing routes or abrasive structures.
Crystal & Aggregate Morphology
Consider irregular, blocky-oriented or agglomerated particle structures according to the selected grade and process.
Bond, Carrier & Workpiece
Evaluate the diamond powder within the intended grinding wheel, diamond paste, polishing slurry or specialist manufacturing system.
02 / Product Range · Seven Core Products
Explore SinoDiam Micron Diamond Powder Grades
Start with your workpiece and manufacturing process. Review the individual product pages for technical selection details and quotation support.
General-Purpose Micron Diamond Grades
Three product positions for general grinding, lapping and polishing. Economy, Standard and Premium are portfolio classifications, not guaranteed numerical performance rankings.
General Grade · Economy
SND-M05
Economy Micron Diamond Powder
Irregular, angular diamond abrasive positioned for cost-conscious grinding, lapping and polishing formulations.
Evaluation focus: Stone, ceramic tile, selected gemstones and general abrasive-tool manufacturing.
Explore SND-M05 Specifications →
General Grade · Standard
SND-M10
Standard Micron Diamond Powder
General-purpose micron abrasive for evaluating a balance of grinding behavior, particle grading and finishing requirements.
Evaluation focus: Glass, technical ceramics, gemstones, selected carbide and diamond paste or slurry formulations.
Explore SND-M10 Specifications →
General Grade · Premium
SND-M15
Premium Micron Diamond Powder
Premium-positioned diamond micron powder for precision finishing where PSD, particle shape and surface requirements deserve close evaluation.
Evaluation focus: Optical glass, precision ceramics, gemstone polishing and selected polishing compounds.
Explore SND-M15 Specifications →Specialty Micron Diamond Products
These four products serve different manufacturing applications. They are not additional grades in the Economy-to-Premium sequence.
Specialty · Polycrystalline Feedstock
SND-M/PCD
PCD & PDC Manufacturing Feedstock
Specialty synthetic diamond micron powder for evaluating polycrystalline diamond manufacturing. Particle packing, chemical impurities, cleanliness and HPHT sintering requirements are important.
Evaluation focus: PCD cutting material, PDC diamond tables and selected polycrystalline wear materials.
Explore SND-M/PCD Specifications →
Specialty · Diamond Wire
SND-MDW
Diamond Wire Manufacturing Powder
Specialty micron diamond for fixed-abrasive wire saw manufacturing. Selection focuses on grading, crystal morphology, abrasive exposure and retention in the finished wire.
Evaluation focus: Electroplated wire for silicon, SiC, sapphire and selected hard-brittle materials.
Explore SND-MDW Specifications →
Specialty · Precision Polishing
SND-MPL
Precision Polishing Diamond Powder
Specialty micron diamond for polishing processes where oversize particles, agglomeration, powder cleanliness and finished-surface quality require careful evaluation.
Evaluation focus: Optical glass, sapphire, technical ceramics and selected gemstone finishing.
Explore SND-MPL Specifications →
Specialty · Agglomerated Abrasive
SND-MAG
Agglomerated Micron Diamond Powder
Agglomerated diamond abrasive distinguished by larger secondary structures assembled from finer diamond grains. Primary grain size and agglomerate size require separate evaluation.
Evaluation focus: Selected sapphire, SiC, ceramic and precision lapping or polishing systems.
Explore SND-MAG Specifications →Grade labels and specialty applications guide initial selection. Current size availability, particle characteristics and process suitability must be confirmed for each model. No fixed performance improvement or direct competitor-grade equivalence is implied.
03 / Technical Comparison
Micron Diamond Grade & Application Comparison
Use this table to identify the right product family before comparing detailed micron-size and process specifications.
| Product | Classification | Primary Evaluation Focus | Typical Application Direction |
|---|---|---|---|
| SND-M05 | Economy | General irregular-particle abrasive, cost and processing balance | Stone, ceramics, gemstones, general lapping |
| SND-M10 | Standard | Particle grading, removal behavior and finishing balance | Glass, ceramics, carbide, paste and slurry trials |
| SND-M15 | Premium | Precision processing, PSD and surface characteristics | Optical glass, ceramics, precision polishing |
| SND-M/PCD | Specialty | Impurity requirements, powder packing, HPHT compatibility | PCD/PDC feedstock manufacturing |
| SND-MDW | Specialty | Grain morphology, PSD, exposure and wire retention | Fixed-abrasive diamond wire manufacturing |
| SND-MPL | Specialty | Oversize control, dispersion and surface-quality requirements | Precision lapping and polishing |
| SND-MAG | Specialty | Primary grains, secondary agglomerates and breakdown behavior | Agglomerated-abrasive lapping and polishing |
This table reflects product positioning rather than measured strength, purity or PSD rankings. Grade-specific test results are needed for final material qualification.
04 / Particle Size & Grading
Understanding Micron Size & Particle Size Distribution
Choosing a nominal micron size is only the first step. PSD, morphology, oversize content and the measurement method can be decisive in precision abrasive selection.
Coarser Micron Fractions
Evaluate for earlier grinding or lapping stages where material-removal requirements permit larger abrasive particles.
Intermediate Fractions
Consider when removal rate, abrasive contact and surface requirements need to be balanced.
Finer Micron Fractions
Evaluate for controlled finishing, especially where oversize particles, agglomeration or contamination may affect the surface.
Which PSD Parameters Should Customers Compare?
D10 / D50 / D90
These distribution points describe measured particle-size populations under a stated method and reporting basis. The same nominal size does not guarantee identical distributions between suppliers.
Oversize & Fine Tails
Rare oversized grains may cause isolated scratches during sensitive finishing. Acceptable limits should be defined for the actual workpiece and inspection method.
Particle Morphology
Angular, blocky, fractured and agglomerated structures can present different contact geometries. Representative microscopy can supplement PSD data.
Dispersion & Measurement
Sample preparation, liquid carriers and agglomeration can influence measured size and actual polishing behavior. Test methods should be comparable across suppliers.
A Special Note on SND-MAG
For agglomerated micron diamond, distinguish primary diamond particle size from secondary agglomerate size. A single reported D50 value does not identify both populations. Request separate characterization where the distinction matters.
Micron-size fractions, D10/D50/D90 limits and oversize specifications vary by product and may depend on the measurement method. The entire series should not be assigned one universal size or tolerance guarantee.
05 / Industrial Applications
Applications of Micron Diamond Powder
Different processing steps require different diamond powder characteristics. Select the abrasive according to workpiece, tool architecture and finished-surface requirements.
Precision Grinding & Lapping
Micron diamond abrasives for suitable glass, technical ceramic, carbide and other hard-material grinding or lapping systems.
Explore SND-M10 →Optical Glass & Sapphire
Precision finishing evaluations where particle-size tails, surface damage and polishing formulation require careful control.
Explore SND-MPL →Gemstone & Ceramic Finishing
General and precision polishing of selected gemstone and ceramic workpieces using appropriate diamond size and processing conditions.
Explore SND-M05 →Diamond Paste & Slurry
Diamond powder selection for polishing compounds and liquid abrasive formulations, considering wetting, dispersion and sedimentation.
Explore SND-M15 →Diamond Wire Manufacturing
Micron diamond used in fixed-abrasive wire-saw development for selected silicon, SiC, sapphire and related hard-brittle cutting processes.
Explore SND-MDW →PCD / PDC Material Production
Specialized micron diamond feedstock for polycrystalline material manufacturing, where impurity control, PSD and sintering conditions matter.
Explore SND-M/PCD →Applications are intended technical evaluation directions. Semiconductor-device manufacturing qualification, scratch-free polishing, exact Ra values and finished-tool performance require separate evidence.
06 / Tool & Formulation Compatibility
Bond Systems, Diamond Pastes & Polishing Slurries
Micron diamond powder selection should consider how abrasive particles are retained, dispersed and presented to the workpiece.
Resin-Bond Abrasives
Consider particle morphology, abrasive concentration, grain exposure and matrix retention. Suitable grades require wheel-formulation trials.
Diamond Paste & Compound
Evaluate particle grading, carrier viscosity, abrasive loading, mixing and storage behavior in the finished compound.
Water-Based Slurries
Review wetting, dispersion, agglomeration, sedimentation and compatibility with the selected liquid chemistry.
Oil-Based Slurries
Consider carrier chemistry, particle surface condition, separation and abrasive distribution under working conditions.
Electroplated Wire Tools
For SND-MDW evaluation, grain retention depends on the complete wire core, particle preparation, plating interface and deposition process.
PCD / PDC Sintering Feedstock
SND-M/PCD is evaluated under a different manufacturing route, with specific PSD, impurity, packing and HPHT processing requirements.
Do All Micron Diamond Grades Work in Every Bond?
No. Resin, metal, vitrified, electroplated, water-based and oil-based systems impose different requirements on abrasive particles. Compatibility must be assessed for the selected grade, processing conditions and finished-tool formulation.
07 / Technical Selection Workflow
How to Select the Right Micron Diamond Grade
Start with the application rather than assuming that the finest particle or highest grade label will always provide the best result.
Identify the Workpiece
Define the material: stone, glass, ceramic, carbide, gemstone, sapphire, SiC, PCD material or another substrate. Include surface sensitivity and contamination requirements.
Define the Manufacturing Process
Specify grinding, lapping, polishing, diamond paste, slurry, diamond wire manufacturing or PCD/PDC feedstock production.
Match the Abrasive Specification
Select the micron-size designation, PSD, morphology, surface characteristics and carrier or bond requirements. For SND-MAG, specify both grain and agglomerate size.
Validate with Process Trials
Compare material removal, surface finish, particle retention, dispersion or sintering results under relevant conditions. Review overall processing cost before substitution.
Technical Information for Your Inquiry
To recommend a relevant product, SinoDiam may need your workpiece material, processing operation, requested micron size, size distribution, existing abrasive grade, bond or slurry formulation, surface-quality target, trial quantity, delivery destination and any critical documentation requirements.
08 / Technical FAQ
Frequently Asked Questions — Micron Diamond Powder
Practical answers about micron diamond applications, grades, particle size, slurry formulation and specialty abrasive selection.
1. What is micron diamond powder?
Micron diamond powder consists of diamond abrasive particles classified in micrometer-scale size fractions. It is used in selected precision grinding, lapping, polishing and specialized tool-manufacturing processes. The correct specification depends on particle size, morphology, grading and intended use.
2. What is the difference between mesh diamond grit and micron diamond powder?
Mesh diamond grit generally refers to coarser screened abrasive particles, while micron powder is specified using smaller micrometer-scale fractions for finer abrasive operations. Exact boundaries depend on the grading standard and supplier specifications.
3. How are SND-M05, SND-M10 and SND-M15 different?
They represent SinoDiam's Economy, Standard and Premium general-purpose micron grade positions. SND-M05 focuses on economical grinding and polishing, M10 on general precision lapping and finishing, and M15 on more demanding precision applications. Exact technical differences require grade-specific characterization and application trials.
4. Which SinoDiam micron product is intended for PCD or PDC manufacturing?
SND-M/PCD is the specialty micron diamond feedstock positioned for PCD and PDC material manufacturing. Selection should consider particle-size distribution, impurity requirements, powder cleanliness and the intended sintering formulation. It is not a finished PCD insert or PDC cutter.
5. Which micron diamond grade is used for diamond wire saw manufacturing?
SND-MDW is SinoDiam's specialty diamond-wire micron powder. It is positioned for evaluation in fixed-abrasive wire manufacturing, including electroplated systems. Final wire performance depends on abrasive size, crystal properties, wire construction, plating or bond and cutting conditions.
6. What makes SND-MPL different from SND-M15?
SND-M15 is a premium general-purpose micron diamond grade, while SND-MPL is positioned specifically for precision-polishing applications. SND-MPL selection focuses on abrasive grading, possible oversized particles, surface cleanliness, dispersion and workpiece finish. Actual performance differences need testing.
7. What is agglomerated micron diamond powder?
Agglomerated diamond powder contains larger secondary abrasive structures assembled from finer primary diamond particles. SND-MAG is a specialty agglomerated micron product. Its technical evaluation should distinguish the primary grain size from the secondary agglomerate size and consider structural stability and breakdown behavior.
8. Are D10, D50 and D90 sufficient to assess scratch risk?
Not always. D10, D50 and D90 describe selected points in the measured particle-size distribution but may not detect extremely rare oversized particles. Scratch-sensitive applications may require additional oversize inspection, contamination control and polishing trials.
9. Are all micron-size fractions available for every SinoDiam grade?
Availability must be confirmed individually. A size range shown for an overall product family does not establish that every fraction is supplied for all seven grades. Customers should request the current grade-specific particle-size list and specification.
10. Can SinoDiam micron diamond powder be used in water-based and oil-based polishing slurries?
Different grades may be evaluated in appropriate slurry formulations, but compatibility is not universal. Particle wetting, carrier chemistry, sedimentation, agglomeration, storage behavior and workpiece requirements should be tested for the selected formulation.
11. Does premium micron diamond guarantee scratch-free polishing?
No. Surface quality depends on particle size, rare oversized grains, agglomerates, contamination, workpiece characteristics and process conditions. Premium positioning alone does not guarantee an Ra value, scratch-free finish or longer tool life.
12. How should I compare SinoDiam with another micron diamond supplier?
Compare matching particle-size fractions and test methods, PSD, morphology, relevant impurity specifications and surface or dispersion characteristics. Then conduct process-specific trials to evaluate removal rate, surface quality, abrasive consumption and cost per finished part.
13. Is SND-MAG the same as true polycrystalline diamond?
Not necessarily. Agglomerated diamond refers to an assembly of smaller particles, whereas true polycrystalline diamond describes a different material structure. The actual microstructure must be confirmed before treating the two terms as equivalent.
14. What information should I provide for a micron diamond quotation?
Please send your application, workpiece material, product grade if known, required micron fraction, grading standard or PSD limits, bond or polishing carrier, expected quantity, destination and any critical surface or processing requirements. Existing abrasive specifications can help with supplier comparisons.
SinoDiam International · Micron Diamond Technical Support
Looking for the Right Micron Diamond Powder?
Whether you manufacture grinding tools, diamond polishing compounds, precision wire saws or polycrystalline diamond materials, selecting the correct abrasive starts with understanding the application and particle specification.
Share your required grade, target micron size, particle-size distribution requirements, workpiece, tool or slurry system, trial quantity and destination. SinoDiam can discuss current specifications and application-based material selection.
Request Technical Information & Quotation →