Micron Diamond Powder
High-Purity Particles for Reliable Grinding and Polishing Performance
Achieve Superior Surface Polishng and Finish
Matching the right diamond grade and particle size to your process is key to achieving superior polishing and finishing results. Crownkyn combines expertise in micron diamond applications with strict quality control to support your success. Our team is ready to help you select the optimal solution tailored to your specific requirements.
Monocrystalline Micron Diamond Powder
Monocrystalline micron diamond powder is produced through HPHT (high-pressure, high-temperature) synthesis. The fine diamond particles exhibit a well-defined crystal structure with parallel cleavage planes, similar to natural diamond. In abrasive applications, controlled micro-fracturing of the particles creates a self-sharpening effect, enhancing cutting efficiency and extending tool life. Monocrystalline micron diamond powder is widely used for precision grinding, lapping, and polishing of ceramics, glass, metals, and other hard materials
Regular crystal shape, concentrated particle size distribution, low impurity content, and high thermal stability
Spherical-like shape, concentrated particle size distribution, ultra-low impurity content, and customisable
Polycrystalline Diamond Powder
Polycrystalline diamond powder, produced by explosive synthesis, has a polycrystalline structure without cleavage planes, offering exceptional toughness and withstanding pressures up to three times higher than monocrystalline diamond. Its rough, micro-structured surface provides multiple contact points with the workpiece, achieving high cutting efficiency and material removal rates. Polycrystalline-like diamond powder mimics these key features at a more cost-effective level, making it a practical alternative for precision lapping, grinding, and polishing applications.
Specialised Micron Diamond Powder
Specialised Micron Diamond Powder is designed for critical applications that demand high precision, stability, and consistent performance. With controlled particle shape, narrow size distribution, and tailored properties, it ensures optimal cutting, grinding, and polishing efficiency across a variety of industries. This range of powders offers reliable solutions for advanced manufacturing processes, helping you achieve superior surface finishes and productivity.
Blocky crystal shape, concentrated particle size distribution, high strength, and excellent wear resistance.
Spherical and equiaxed crystal shape, ultra-low impurity content, excellent wear resistance and thermal stability.
Regular octahedral crystal shape, high strength and thermal stability, excellent wear resistance.
Rounded shape and a multi-edged microstructure, it offers excellent self-sharpening and fine cutting edges.
Modified Micron Diamond Powder
Polycrystalline diamond powder, produced by explosive synthesis, has a polycrystalline structure without cleavage planes, offering exceptional toughness and withstanding pressures up to three times higher than monocrystalline diamond. Its rough, micro-structured surface provides multiple contact points with the workpiece, achieving high cutting efficiency and material removal rates. Polycrystalline-like diamond powder mimics these key features at a more cost-effective level, making it a practical alternative for precision lapping, grinding, and polishing applications.
Diamond particles with a controllable micro or nano scale surface texture
Diamond particles with an internally foamed, porous structure
Your Reliable Micron Diamond Powder Partner
At Crownkyn, we understand the precision your applications demand. Our micron diamond powder is engineered for superior consistency, diverse particle shapes, and excellent surface finishes, which is ideal for lapping, polishing, and precision grinding. With strict quality control, stable supply, and tailored particle size distributions with varied surface morphologies, we help you achieve reliable performance and cost efficiency in every process.
Tailor Micorn Diamond Powder Solutions
Tailored Particle Size Range: Available from sub-micron to tens of microns, our micron diamond powders cover a wide range of lapping, polishing, and precision grinding applications, delivering excellent surface quality and dimensional control.
Diverse Particle Shapes & Morphologies: Engineered with various particle shapes and surface textures to suit different material removal rates, finish requirements, and process conditions.
Optimised Bond Compatibility: Suitable for metal bond, resin bond, vitrified bond, and electroplated systems, ensuring strong diamond-to-binder adhesion and improved tool performance.
Stable Quality Control: Strictly controlled particle size distribution, surface cleanliness, and shape uniformity guarantee consistent quality and reliable performance from batch to batch.
Customised Solutions: We offer tailored particle size distributions, surface morphologies, and optional coatings to match your specific process needs and optimise your production efficiency.
Discover Crownkyn’s tailor-made micron diamond powder solutions. Work with our technical team to select the optimal particle size, shape, and surface morphology to meet your specific polishing, lapping, and precision grinding requirements with confidence.
Why Choose Micron Diamond Powder from Crownkyn
At Crownkyn, we understand that every process requires a precise diamond solution. Our micron diamond powder is engineered with controlled particle sizes, diverse shapes, and tailored surface properties to meet your polishing, lapping, and precision grinding needs. Rely on us for consistent quality, technical expertise, and dependable performance in your production.
Direct-from-Factory Efficiency
With our own specialised manufacturing facility, we eliminate unnecessary intermediaries, enabling shorter lead times, customised technical support, and prompt responses to your enquiries within 24 hours.
Transparent & Competitive Pricing
Our factory-direct approach ensures high-quality micron diamond powder at competitive prices, trusted by tool manufacturers and distributors in over 40 countries, with an 85% repeat order rate.
Consistent Quality and Reliability
We control every stage of production, from raw diamond selection to precision grading and inspection, ensuring uniform particle size distribution, stable morphology, and reliable performance in your lapping, polishing, and grinding processes.
Frequently Asked Question
Free samples of synthetic diamond powder or CBN powder about 50cts can be provided for quality test. Sample preparation typically takes 3–5 working days, and international delivery is about 7 days by air.
we can provide analysis reports upon request. These may include particle size distribution（PSD）, crystal morphology, purity, magnetic content, and thermal stability, especially important for high-performance products.
Pricing depends on product type (diamond or CBN), grit size, and application. MOQ usually starts from 1kg (5000ct). Volume discounts are available for bulk orders or long-term partnerships.
Standard delivery time is 7–15 working days after confirming the order. We maintain stock for regular grades and can prioritize production to support urgent requirements when needed.
All products are packed in sealed, anti-static, moisture-proof PE bags, or PE bottles and sealed in shock-proof cartons. And all packaging complies with international transport regulations.
Absolutely. We support customized coatings (e.g., Ti, Ni, Cu) and tailor-made diamond powder and CBN powder to match different bonding systems and tool applications.
We provide a full set of export documents including Certificate of Origin, MSDS, Packing List, and Commercial Invoice. Specific documents can be arranged based on your destination country’s requirements.
We commonly offer air freight. Logistics can be handled by our team or your nominated forwarder, depending on your preference.
Is the supplier's production capacity stable and can it meet our order requirements in the long run?
Yes. Our production facilities ensure stable monthly output, supported by ISO-standardized quality control. We are able to meet ongoing demands and scale production for long-term cooperation.
In case of verified quality issues, we offer free replacement or return. All related costs including shipping are covered by us. We prioritize long-term trust and transparency with our clients.
Manufacturing Workshop
Mircon Diamond Powder
The Comprehensive Guide
(2024)
This guide explores the benefits of Crownkyn’s micron diamond powders, engineered for exceptional precision, surface finish, and consistency in critical polishing, lapping, and grinding applications. From sub-micron to tens of microns, with diverse shapes and surface morphologies, we help you select the optimal particle size distribution and characteristics to suit your materials and processes. Crownkyn ensures stable quality and dependable supply to support your manufacturing and distribution goals with confidence.
Table of Contens
- 1. What is Micron Diamond Powder
- 2. Key Features and Benefits of Micron Diamond Powder
- 3. Available Grades and Size Ranges
- 4. Bond System Compatibility
- 5. Typical Applications Across Industries
- 6. How to Select the Right Micron Diamond Powder
- 7. Consistency and Quality Control
- 8. Sample Testing and Performance Evaluation
- 9. Packaging, Handling, and Storage Guidelines
Purchasing Micron Diamond Powder for Your Tools from China?
Read Seven Key Tips for Purchasing Micron Diamond Powder from China!
What is Micron Diamond Powder?
Micron diamond powder is a precision-engineered abrasive composed of ultra-fine synthetic diamond particles, typically ranging in size from 0-0.25μm to 40-60μm. Manufactured through controlled crushing and advanced classification techniques, it features uniform particle shape, narrow size distribution, and high surface purity. These characteristics make it ideal for high-precision grinding, polishing, and lapping applications where surface quality and dimensional accuracy are critical.
At Crownkyn Diamond, our micron diamond powder is produced using high-quality synthetic single-crystal or polycrystalline diamond as raw material. Each batch undergoes strict quality control to ensure particle uniformity, thermal stability, and consistent performance in demanding applications. The powder is available in multiple types including monocrystalline, polycrystalline, coated and uncoated, to match various bonding systems and substrate materials. It is widely used in precision polishing and lapping of ceramics, sapphire, optical glass and semiconductors, fine grinding of hard metals, tungsten carbide and engineering ceramics, CMP (Chemical Mechanical Polishing) processes in the electronics industry, and in abrasive slurry and paste formulations for mould polishing and finishing.
Key Features and Benefits
Micron diamond powder offers precise particle sizing, sharp cutting edges, and excellent surface purity, making it ideal for high-precision applications. Its consistent morphology ensures uniform material removal and superior surface finish, while the narrow size distribution enhances polishing efficiency and repeatability. High thermal stability and low impurity levels contribute to longer tool life, improved process control, and reduced contamination risk in critical applications.
Precise Particle Size Control
Micron diamond powder is manufactured with tightly controlled size distributions, ensuring accurate grading and consistent performance in precision polishing and fine grinding applications.
Superior Surface Purity
Each particle undergoes thorough cleaning and quality inspection to minimise contamination, making it suitable for high-tech industries such as semiconductors and optics.
Excellent Surface Finish Quality
The uniform particle shape and sharp cutting edges support smooth, controlled material removal, helping achieve low surface roughness and high dimensional accuracy.
High Thermal Stability
Produced from premium synthetic diamond, it maintains performance under elevated temperatures, reducing the risk of thermal degradation during extended processing.
Broad Compatibility
Available in monocrystalline, polycrystalline, coated, and uncoated forms, micron diamond powder is adaptable to various bond systems and workpiece materials including ceramics, hard metals, glass, and sapphire.
Reliable Batch Consistency
Strict process control and quality standards ensure stable performance across production runs, supporting repeatable results and minimising tool variation.
Available Grades and Size Ranges
Micron diamond powder is offered in a full range of particle sizes, typically from 0-0.25μm up to 40-60μm, to support a wide spectrum of polishing and grinding applications. Selecting the appropriate grade and size distribution is essential to achieving consistent results in your tool formulation and surface processing workflows.
Available Grit Sizes
Bond System Compatibility
Micron diamond powder from Crownkyn is engineered for excellent compatibility with a wide range of bond systems, ensuring stable performance across different tooling applications. Whether you are working with resin bonds, vitrified bonds, metal bonds, or electroplated systems, our micron powders provide consistent retention and uniform dispersion within the bond matrix.
Resin Bond DiamondTools
Micron diamond powder offers sharp, well-defined edges and uniform size distribution, delivering high surface quality and stable cutting performance in resin bond polishing and grinding tools.
Vitrified Bond Diamond Tools
With high thermal stability and clean surface morphology, it ensures reliable retention and consistent performance in vitrified bond applications requiring precise dimensional control.
Metal Bond (Sintered) Diamond Tools
The robust structure and controlled particle shape support strong mechanical retention, making it ideal for metal bond tools used in hard material processing.
Electroplated Bond Diamond Tools
Micron diamond maintains sharp edges and uniform protrusion, ensuring efficient cutting action and surface consistency in electroplated tools used for fine finishing tasks.
Typical Applications in Various Industries
Crownkyn’s micron diamond powder is widely used in industries that demand high surface precision, consistent material removal, and reliable process control, such as electronics, optics, semiconductors, and advanced ceramics manufacturing.
- Semiconductor Industry: Used in CMP slurries and final polishing of silicon wafers, compound semiconductors, and other substrates requiring ultra-fine surface precision.
- Optical Component Manufacturing: Applied in precision polishing of lenses, prisms, and optical glass, where particle consistency and purity ensure optical clarity.
- Precision Mould Finishing: Used in lapping and polishing of moulds to achieve mirror finishes and tight tolerances, especially for injection moulds and dies.
- Advanced Ceramic Processing: Suitable for fine grinding and polishing of zirconia, alumina, and silicon nitride in high-precision ceramic applications.
- Tool and Die Fabrication: Supports tool edge finishing and polishing of carbide, hardened steel, and PCD, improving tool life and surface quality.
With ultra-fine particle sizes, high surface purity, and excellent adaptability to various bond systems, Crownkyn’s micron diamond powder supports precision processing needs across industries such as semiconductors, optics, ceramics, and high-performance tooling.
How to Select the Right Micron Diamond Powder
STEP 1
Identify Your Application Purpose
Determine whether the powder is for lapping, fine grinding, pre-polishing, or final polishing. This defines the required particle size range and powder characteristics.
STEP 2
Select the Suitable Micron Range
Choose the appropriate size range based on your process requirements—larger sizes (40–60μm) for rough polishing, mid-range (10–40μm) for controlled material removal, and ultra-fine sizes (0–1μm) for final surface finishing.
STEP 3
Match the Material Being Processed
Consider the hardness and sensitivity of the workpiece. Micron diamond powder is available for materials such as ceramics, sapphire, tungsten carbide, optical glass, and semiconductors.
STEP 4
Choose the Diamond Type and Structure
Select from monocrystalline for sharp cutting edges and longevity, or polycrystalline for more uniform polishing and smoother surface finishes. Surface-coated options are available for enhanced bond interaction.
STEP 5
Consult for Customisation or Testing
If unsure, contact Crownkyn’s technical support for guidance. Sample materials can be provided to help verify performance under your specific process conditions.
Consistency and Quality Control
At Crownkyn, we prioritise consistency and quality across every batch of micron diamond powder to ensure stable performance in your production.
- Laser Particle Size Analysis: Ensures tight control over micron size distribution, verifying D50, D90, and D10 values to support consistent polishing and grinding performance.
- Microscopic Shape Inspection: Uses high-resolution imaging to evaluate particle shape, edge sharpness, and uniformity—key for predictable surface finish quality.
- Surface Cleanliness Testing: Confirms low levels of oil, residues, or metallic contamination, essential for applications in optics, semiconductors, and high-purity environments.
- Bulk Density and Flowability Testing: Evaluates powder packing behaviour and flow characteristics, ensuring stable performance in automated mixing, dispensing, and bonding systems.
- Batch-to-Batch Traceability: Each production lot is documented and stored with test records, enabling full traceability and repeatable performance across customer orders.
Sample Testing and Performance Verification
At Crownkyn, we know the performance of your diamond tools and precision processes relies on consistent, high-quality diamond micropowder. Please follow these packaging, handling, and storage guidelines to maintain product integrity from delivery to application.
Custom Sample Preparation
We provide micron diamond powder samples in specific particle sizes and grades, allowing you to evaluate suitability for polishing, lapping, or fine grinding applications.
Application-Oriented Testing
Samples can be tested in your own process environment to verify performance in terms of removal rate, surface finish, and dimensional accuracy.
Technical Support Assistance
Our technical team helps analyse test results and recommends adjustments to particle size range or diamond type to optimise compatibility with your bond system.
Continuous Performance Optimisation
Through customer feedback, we refine powder characteristics such as particle uniformity, size distribution, and cleanliness to ensure consistent results and reliable surface quality.
Packaging, Handling, and Storage Guidelines
At Crownkyn, we know the performance of micron diamond powder depends on precise grading as well as proper packaging, handling, and storage. With ultra-fine particle sizes and high surface purity, it is sensitive to moisture, contamination, and static. To ensure stable dispersion and consistent results, please follow our Packaging, Handling, and Storage Guidelines.
- Moisture-proof and anti-static containers
- Sealed plastic bottles or vacuum-sealed foil bags
- Outer cartons for bulk protection
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Custom packaging available on request
- Wear gloves and masks to avoid inhalation and skin contact
- Use clean, dry tools when opening or transferring
- Handle in a clean, controlled environment
- Keep sealed in original packaging until use
- Store in a cool, dry, and well-ventilated place
- Avoid moisture, sunlight, and extreme temperatures
Hey, I’m Ashley Wei, the sales engineer of crownkundiamond.com Family-run business.
An expert of Synthetic Diamond Powder specialist.
In the past 26 years, we’ve supported 100+ clients across 35 countries, including diamond tools manufacturers and synthetic diamond powder distributors to significantly enhance their product quality and efficiency.
The purpose of article is to share insights on advanced abrasive solutions, helping you produce higher quality diamond tools with improved performance and durability.