Coated Diamond Powder
Engineered Coated Diamond Powder for Enhanced Bonding and Tool Life
Improve Grinding Stability with Coated Diamond Powder
Coated diamond powder is designed to improve bond retention, thermal stability, and overall grinding efficiency. Crownkyn’s coated diamond features a uniform metal or ceramic coating (such as Ni, Ti, Cu, Cr, W, Co), enhancing the interface between the diamond and the bond system, especially in resin, metal, and vitrified bond tools.
Produced with strict control over coating thickness and coverage uniformity, our coating diamond powder ensures stable performance and extended tool life in demanding grinding and cutting applications. Choose Crownkyn for coated abrasive solutions that deliver enhanced durability and processing efficiency.
We can provide customized plating of metals such as aluminum (AI), molybdenum (Mo), zirconium (Zr), silicon (Si), copper-tin alloy (CuSn), and copper-chromium alloy (CuCr) on diamond surfaces according to customer requirements.
Ti Coated Diamond Powder
Characteristic: Titanium coating diamond powder provides excellent oxidation resistance and improves thermal stability. It enhances bond retention and increases diamond protrusion by improving wettability. The coating does not degrade the diamond surface or strength. Titanium content ranges from 1 wt% to 10 wt%, depending on crystal size.
Application：Highly effective in metal bond systems. Ideal for grinding and cutting hard materials like tungsten carbide, ceramics, and stone.
Ni Coated Diamond Powder
Characteristic: Nickel coating improves bond retention and thermal conductivity, ensuring efficient heat dissipation during grinding. It strengthens diamond-to-matrix bonding and protects the diamond surface from degradation under high loads. Nickel content typically ranges from 30 wt% to 55 wt%, depending on application needs.
Application：Ideal for metal bond tools used in heavy-duty grinding and cutting of hard materials like ceramics, glass, and tungsten carbide.
W Coated Diamond Powder
Characteristic: Tungsten coating provides excellent thermal stability and oxidation resistance, making it suitable for extreme processing conditions. It strengthens diamond-to-matrix bonding and reduces graphitisation at high temperatures.
Application：Ideal for metal bond tools used in high-temperature grinding and cutting of ultra-hard materials such as ceramics, quartz, and tungsten carbide.
Cu Coated Diamond Powder
Characteristic: Copper coating enhances diamond wettability and improves heat dissipation during processing. It strengthens diamond-to-bond adhesion and provides surface protection, making it ideal for soft bond systems such as resin and bronze bonds.
Application：Widely used in resin and bronze bond tools for precision grinding and cutting of materials like ceramics, glass, and stone. Especially suitable for applications requiring low processing temperature and good tool sharpness.
Cr Coated Diamond Powder
Characteristic: Chromium coating improves wettability and bond adhesion. During sintering, a chromium carbide layer forms between diamond and binder, enhancing grip strength, hardness, and wear resistance. Also offers good oxidation resistance. Suitable for resin, cobalt, and bronze bond systems.
Application：Ideal for resin, cobalt, and bronze bond tools used in precision grinding and cutting of ceramics, glass, and stone. Especially suitable for applications requiring strong diamond retention and tool durability.
Co Coated Diamond Powder
Characteristic: Cobalt coating significantly improves the bonding strength between diamond and binder. It provides effective protection against high-temperature oxidation and chemical erosion, raising the diamond’s sintering temperature. The coating also enhances the hardness and wear resistance of the diamond particles.
Application:
Application：Widely used in geological drilling, oil exploration tools, and metal or ceramic bond tools for grinding and cutting hard materials. Suitable for applications requiring high bond strength and thermal stability.
TiC Coated Diamond Powder
Characteristic: The dense titanium carbide layer protects the diamond from high-temperature oxidation and graphitisation during sintering and use. It enhances chemical bonding with the metal matrix, improving tool life and wear resistance.
Application：Suitable for cobalt, iron, and bronze bond tools used in grinding, cutting, and drilling of hard-to-machine materials such as high-silicon aluminium alloys, carbon fibre-reinforced composites, ceramics, and tungsten carbide.
Si Coated Diamond Powder
Characteristic: Silicon coating enhances diamond-to-bond adhesion, thermal stability, toughness, and thermal conductivity. It protects the diamond from high-temperature oxidation and iron erosion during processing, increases sintering temperature, and extends tool life.
Application：Suitable for iron, cobalt, and copper bond systems. Widely used in precision grinding and cutting of advanced ceramics, optical glass, and electronic materials, where high thermal stability and strong diamond retention are essential.
Your Trusted Coated Diamond Powder Supplier
At Crownkyn, we focus on delivering coated diamond powder solutions that meet your demanding grinding, cutting, and drilling applications. With enhanced bond retention, improved thermal stability, and superior oxidation resistance, each coating type is engineered to improve tool life and processing efficiency.
Tailor Coated Diamond Powder Solutions
Tailored Size Range: Available from 10μm to 600μm, suitable for a wide range of grinding, cutting, and drilling applications.
Enhanced Surface Properties: Each diamond particle is uniformly coated with metal layers such as Ti, Ni, W, Cr, Co, or Cu, improving bond retention, thermal stability, and oxidation resistance during high-temperature processing.
Optimised Bond Compatibility: Designed for use in metal bond, resin bond, bronze bond, and ceramic bond systems, ensuring stronger diamond-to-binder adhesion and extended tool life.
Stable Quality control: Strict control over particle size distribution, coating thickness, and surface purity ensures reliable performance and batch-to-batch consistency.
Custom Coating Options: A full range of coating materials (Ti, Ni, W, Cu, Cr, Co, TiC, Si) is available to meet different bond systems and processing requirements.
Discover Crownkyn’s range of coated diamond powder solutions. Work with our technical team to select the right coating type, grit size, and surface treatment to match your specific bond system and application needs.
Why Choose Coated Diamond Powder from Crownkyn
At Crownkyn, we know that every tool demands the right diamond solution. Our coated diamond powder is engineered with a range of coatings and specifications to suit your bond system and application needs. Rely on us for consistent quality, expert guidance, and dependable performance in your production.
Direct-from-Factory Efficiency
With our own dedicated manufacturing facility, we eliminate middlemen, ensuring faster production cycles, expert technical support, and responses to your inquiries within 24 hours.
Transparent & Competitive Pricing
Our factory-direct model delivers high-quality coated diamond powder at competitive prices, trusted by manufacturers and distributors in over 40 countries with an 85% repeat order rate.
Consistent Quality and Reliability
We oversee every step of our manufacturing process, from raw diamond selection to final inspection, ensuring consistent coating quality and dependable performance for your tools.
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
Coated Diamond Powder
The Comprehensive Guide
(2024)
This guide highlights the advantages of Crownkyn’s coated diamond powders, designed to enhance bond retention, thermal stability, and tool life in demanding applications. Whether you require Ti, Ni, Cr, W, Co, Cu, Si, or TiC coated diamond powder, we provide the insights to help you choose the right coating and grit size for your bond system and materials. Crownkyn delivers consistent quality and reliable performance to support both your manufacturing and distribution objectives.
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
-
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.
Precision Grinding & Polishing Solutions for Multiple Various Industrial Processing Fields
Company
Copyright © 2025 Crownkyn, All rights reserved. Powered by Crownkyn Diamond.
Ask a Quote for Now
Requst a Free Quote
Send us a message if you have any questions or request a quote. We will be back to you ASAP.