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
GCM20
Regular crystal shape, concentrated particle size distribution, low impurity content, and high thermal stability
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.
WSD (Diamond Powder for Wire Saw)
Blocky crystal shape, concentrated particle size distribution, high strength, and excellent wear resistance.
PCDM (Diamond Powder for PCD)
Spherical and equiaxed crystal shape, ultra-low impurity content, excellent wear resistance and thermal stability.
AGD (As-grown Micron Diamond Powder)
Regular octahedral crystal shape, high strength and thermal stability, excellent wear resistance.
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.
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 Coated Diamond Powder
- 2. Key Features and Benefits of Coatings
- 3. Coating Types and Their Functions
- 4.Available Grades, Grit Sizes, and Coating Thickness
- 5. Bond System Compatibility
- 6. Typical Applications in Various Industries
- 7. How to Select the Right Coated Diamond Powder
- 8.Sample Testing and Performance Verification
- 9.Packaging, Handling, and Storage Guidelines
What is Coated Diamond Powder?
Coated diamond powder is synthetic diamond particles covered with a uniform metal or compound layer, such as titanium, nickel, chromium, tungsten, cobalt, copper, silicon, or titanium carbide. This coating enhances the diamond’s bond retention, thermal stability, and resistance to oxidation and graphitisation, making it ideal for demanding grinding, cutting, and drilling applications.
At Crownkyn Diamond, we specialise in producing high-quality coated diamond powders with consistent coating thickness, uniform particle size, and reliable performance. Our wide range of coating options and customised solutions help tool manufacturers optimise their processes and achieve superior tool life and efficiency.
Key Features and Benefits of Coating Diamond
Coated diamond powder enhances bond retention, improves thermal stability, and protects the diamond from oxidation and graphitisation. Its uniform coating strengthens the diamond-to-binder adhesion, extending tool life and ensuring reliable performance under high loads and temperatures.
Enhanced Bond Retention
The uniform metal or compound coating improves adhesion between the diamond and the bond matrix, reducing diamond pull-out and extending tool life.
Improved Thermal Stability
Its angular particle shape promotes Coatings such as Ti, W, or Si protect the diamond from graphitisation and oxidation, enabling stable performance at elevated temperatures.
Better Heat Dissipation
Coated surfaces enhance thermal conductivity and reduce heat concentration during grinding, contributing to improved tool durability and efficiency.
Consistent Coating Quality
Strict process control ensures uniform coating thickness, stable particle size distribution, and reliable performance batch after batch.
Versatility Across Bond Systems
Compatible with resin, metal, bronze, and ceramic bond tools, coated diamond powder is ideal for grinding, cutting, and drilling ceramics, glass, hard alloys, and composites.
Coating Types and Their Functions
Crownkyn uses advanced coating technologies to enhance the performance of diamond powder. Depending on the coating material and the specific application, we apply one of three methods, each offering distinct advantages to meet different bonding systems and processing requirements.
A uniform, auto-catalytic process that deposits metals like Ni, Cu, or Co evenly on the diamond surface without electricity. This method is ideal for fine and irregular particles, improving wettability and mechanical retention, especially in resin and bronze bond systems.
An electric-current-driven process used for coatings such as Ni or Ni-Co, offering high adhesion and precise control over coating thickness. Electroplated coatings are commonly used for electroplated tools, ensuring strong grit grip and uniform deposition.
A high-temperature vapour-phase method to deposit materials such as Ti, W, Cr, TiC, or Si directly onto the diamond surface. CVD creates dense, carbide-forming coatings with excellent thermal stability and oxidation resistance — ideal for sintered metal and vitrified bond tools operating at extreme temperatures.
Available Grit Sizes, and Coating Thickness
Coated diamond powder is available in a variety of grades, grit sizes, and coating thicknesses, each tailored to meet specific industrial requirements. Selecting the right combination is essential to ensure optimal bond retention, thermal stability, and cutting or grinding efficiency for your tools.
Available Grit Sizes
Coating Thickness
Bond System Compatibility
Coated diamond powder is engineered to enhance compatibility with various bond systems, ensuring superior grit retention, thermal stability, and wear resistance in abrasive tools. Our advanced coating technologies bridge the gap between diamond and bond materials, delivering unmatched performance in demanding applications.
Resin Bond
Nickel (Ni), Copper (Cu), and Silicon Oxide (Si) coatings improve wetting and mechanical retention in resin matrices. They reduce grit pull-out and wear, extending tool life while maintaining sharpness, making them suitable for precision grinding and polishing applications.
Vitrified Bond
Silicon (Si) and Silicon Carbide (SiC) coatings enhance wetting and bonding in glassy vitrified matrices. These coatings improve retention and stability in brittle, high-temperature environments, ideal for processing ceramics, glass, and composites.
Metal Bond (Sintered)
Titanium (Ti), Chromium (Cr), Tungsten (W), and Titanium Carbide (TiC) coatings react with metal matrices to form strong carbides, enhancing sintering density, adhesion strength, and resistance to graphitisation. Ideal for high-temperature and heavy-duty grinding of ultra-hard materials.
Electroplated Bond
Nickel-Cobalt (Ni-Co) and Silver (Ag) coatings ensure uniform deposition and strong grit anchoring in electroplated layers. They improve coating coverage, grit stability, and surface finish for tools used in precision cutting and shaping.
Typical Applications in Various Industries
Crownkyn’s coated diamond powder is widely used across industries that demand high precision, durability, and efficiency. With coatings such as Ti, Ni, W, Cu, Cr, Co, TiC, and Si, our products deliver enhanced bond retention, thermal stability, and tool life for a range of applications:
- Aerospace & Automotive：Grinding and cutting of tungsten carbide, ceramics, and high-silicon aluminium alloys for engine components, brakes, and structural parts.
- Electronics & Semiconductors：Precision lapping and polishing of optical glass, sapphire, and electronic substrates for displays, wafers, and sensors.
- Construction & Stone Processing：Cutting and shaping of granite, marble, and engineered stones in construction materials and decorative applications.
- Oil & Gas / Geology：Drilling and coring of hard rock and composites with high wear resistance and thermal stability tools for exploration equipment.
- Tool Manufacturing：Production of resin, metal, vitrified, and electroplated diamond tools for grinding, drilling, and cutting ultra-hard materials.
With consistent particle shape, controlled size distribution, and broad bond system compatibility, Crownkyn’s crushed diamond powder helps tool manufacturers deliver reliable performance across multiple industries.
How to Select the Right Coated Diamond Powder
STEP 1
Match the Bond System
Choose coatings that are compatible with your bond type: Ti, Cr, W, or TiC for metal bonds; Ni, Cu, or Si for resin bonds; Si or SiC for vitrified bonds; Ni-Co or Ag for electroplated tools.
STEP 2
Choose the Appropriate Grit Size
Consider the material you are processing (e.g. ceramics, glass, composites, hard alloys) and the operating conditions such as temperature, load, and speed.
STEP 3
Choose the Right Grit Size
Fine grits are ideal for polishing and finishing, medium grits for general grinding, and coarse grits for heavy-duty material removal.
STEP 4
Determine Coating Thickness
Choose from standard crushed for general use, shaped crushed for better uniformity and grinding stability, or coated crushed (Ni, Ti, Cu) for enhanced bond retention and heat resistance in demanding applications.
STEP 5
Consult Technical Experts
Work with Crownkyn’s experienced team to test samples and optimise your choice of coating, grit size, and thickness for your specific needs.
Quality Control and Consistency
At Crownkyn, we prioritise consistency and quality across every batch of crushed diamond powder to ensure stable performance in your production.
Uniform Coating Quality: Advanced deposition techniques ensure an even and consistent coating layer on each particle, verified by SEM and thickness measurement, for reliable bond retention and thermal stability.
Precise Size and Shape Control: Every batch is graded with laser particle size analysers and precision sieving to achieve uniform particle size distribution and optimal crystal shape, ensuring predictable tool performance.
High Purity Standards: ICP and XRF testing are used to monitor and minimise impurities, preventing contamination and maintaining the integrity of your tools during high-temperature processing.
Consistent Batch Performance: All production lots are subject to magnetic separation, visual inspection, and sample testing to guarantee stable coating adhesion, particle quality, and performance from batch to batch.
Sample Testing and Performance Verification
At Crownkyn, we know the performance of your diamond tools and precision processes relies on consistent, high-quality diamond powder. Please follow these packaging, handling, and storage guidelines to maintain product integrity from delivery to application.
Custom Sample Preparation
We prepare tailored sample quantities in your specified grit sizes, grades, and coatings to match your bond system and application needs.
Application-Based Testing
Evaluate our coated diamond powder in your own processes or through third-party testing to assess grinding efficiency, bond retention, and tool wear under real operating conditions.
Technical Support Service
Our technical team helps you analyse test results, recommend adjustments, and optimise product specifications for the best performance in your tools.
Performance Feedback Loop
Your feedback guides us in refining particle shape, size distribution, and coating type, ensuring greater grinding stability, extended tool life, and consistent results.
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 agriculture protection textile 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.
An expert of agriculture protection textile 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.
