Micron Size Diamond Powder: Engineered for Precision Grinding, Lapping, and Polishing

 

SinoDiam’s Micron Size Diamond Powder represents the pinnacle of abrasive precision, engineered for industries where ultra-fine control, consistent quality, and flawless surface finish are essential. Unlike coarser mesh diamonds used in cutting or rough grinding, our micron-grade synthetic diamonds deliver particle-level accuracy with sizes ranging from 0–0.125μm up to 40–60μm—making them ideal for precision grinding, lapping, mirror polishing, and micro-machining.

Trusted globally in stone, gem, optical, electronic, and semiconductor manufacturing, the SND Series Micron Diamond Powders (SND-M05, M10, M15, MAG, MPL, M/PCD, and MDW) are formulated to meet the diverse requirements of aerospace, medical device, and semiconductor industries where micron-level surface tolerance is critical.

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Core Advantages of SinoDiam Micron Diamond Powder

• Wide Particle Size Range (0–0.125~40–60μm): Covers every fine-processing need—from ultra-fine polishing (sub-0.125μm) to fine grinding (40–60μm).
• Ultra-Precise Particle Control: Maintains ±5% size tolerance for uniform abrasive performance and predictable surface finishes.
• High Purity (≥99.9%) & Low Impurity (<0.05%): Prevents contamination during semiconductor wafer or gemstone polishing.
• Superior Toughness: High hardness (HV 8800–9200) ensures resilience during high-speed grinding or PCD lapping.
• Versatile Bond Compatibility: Perfect for resin, ceramic, metal, and electroplated bonds, enabling universal use across tools and industries.

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SND Series Micron Diamond Lineup (0–0.125~40–60μm)

SND-M05 Micron Diamond Powder

Economy Grade for General Grinding & Polishing
Cost-effective for stone, ceramics, and gem polishing, balancing fast material removal with gentle surface finishing.

SND-M10 Micron Diamond Powder

Versatile Grade for Lapping & Fine Grinding
Balanced toughness for both rough and fine polishing in optical lens, ceramic, and tungsten carbide applications.

SND-M15 Micron Diamond Powder

High-Purity Grade for Superior Surface Finish
Tightly controlled particle size for mirror-quality finishing on gemstones, wafers, and PCD tools.

SND-MAG Agglomerated Micron Diamond

Agglomerated Polycrystalline-Like Structure for Scratch-Free Finishing
Uniform polishing action with reduced micro-scratches on semiconductors and sapphire substrates.

SND-MPL Polycrystalline Micron Diamond

True Polycrystalline Diamond for Ultra-Smooth Polishing
Multi-crystal structure ensures minimal subsurface damage—ideal for optics and gemstone mirror polishing.

SND-M/PCD Micron Diamond Powder

Hybrid Polycrystalline Micron Diamond for Tough Materials
Enhances adhesion and edge retention for PCD/PDC production, vitrified and metal bond grinding wheels.

SND-MDW Micron Diamond for Wire Saw

Specialized for Diamond Wire Saw Cutting
Optimized for electroplated/resin bond diamond wires, providing clean, precise cuts in silicon wafers and gemstones.

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Top 10 FAQs About Diamond Micron Powder

1. What is diamond micron powder?
Diamond micron powder consists of ultra-fine synthetic diamond particles, typically ranging from 0.25 to 50 microns. It is used for precision applications such as polishing, lapping, grinding, and finishing hard materials including ceramics, metals, glass, and gemstones.

2. What are the main benefits of diamond micron powder?
Diamond micron powders provide exceptional hardness, high thermal stability, uniform particle size, and superior cutting efficiency. They deliver consistent finishes, longer tool life, and reduced surface defects, making them ideal for precision polishing and high-accuracy applications.

3. What is the typical particle size range of diamond micron powders?
The particle size usually ranges from 0.25μm to 50μm. Smaller particles are used for fine polishing and mirror finishes, while larger particles are suited for material removal, pre-polishing, or grinding applications.

4. How is diamond micron powder used in abrasive applications?
Diamond micron powders are applied in resin, metal, and electroplated bonded tools for grinding, lapping, and polishing. Their ultra-hard surface and sharp edges allow precise material removal, improved surface smoothness, and reduced micro-scratches on delicate workpieces.

5. What are the different types of diamond micron powders?

• Monocrystalline diamond powder: Single-crystal structure, highly uniform and hard, ideal for precision polishing.
• Polycrystalline diamond powder: Multiple-crystal structure, tougher and more resistant to fracture, used in high-stress applications.

6. How do I select the right micron size for my application?

• 0.25–1μm: Ultra-fine polishing for optics, semiconductors, or mirror finishes.
• 2–15μm: General lapping and fine grinding of ceramics, metals, and stones.
• 20–50μm: Heavy fine grinding, pre-polishing, or coarse finishing tasks.

7. What is the difference between diamond micron powder and diamond paste?
Diamond micron powder is a dry abrasive, whereas diamond paste is suspended in a fluid carrier for smoother application during polishing. Diamond paste is often used for final polishing steps, while powders are versatile for both grinding and polishing.

8. How should diamond micron powder be stored?
Store in a cool, dry, and dust-free environment, preferably in airtight containers to maintain purity and prevent contamination. Avoid moisture, high heat, or direct sunlight.

9. Can diamond micron powder be used with different bonding types?
Yes. Diamond micron powders are compatible with resin, metal, ceramic, and electroplated bonds, making them suitable for a wide range of abrasive tools and applications.

10. Are there safety precautions when handling diamond micron powder?
Always wear protective gloves, safety glasses, and masks when handling powders. Avoid inhaling dust and work in a well-ventilated area or with dust collection systems. Follow proper safety guidelines to prevent skin or eye irritation.