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Precision Superhard Materials for Industrial Excellence

Kumthai Abrasives Co., Ltd. is a leading manufacturer of synthetic diamond grits, micron powders, coated abrasives, and cubic boron nitride (CBN), serving global industries with high-strength, high-purity solutions.

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About Kumthai

Located in Zhengzhou, China — a central hub for superhard materials — Kumthai Abrasives specializes in the R&D, production, and global export of industrial synthetic diamonds and CBN products.

Advanced R&D

Equipped with ICP chemical analyzers, scanning electron microscopes, laser particle size analyzers, and full computer-controlled grading systems for precision quality control.

High-Capacity Production

Monthly output of 25 million carats of synthetic diamond micron powders and 30 million carats of crushed synthetic diamond grits, ensuring reliable supply.

Global Export Expertise

Audited supplier on Made-in-China, offering OEM, ODM, and branded (KUMTHAI) solutions tailored to international standards and customer needs.

Our Product Range

High-strength, high-purity synthetic diamond and CBN products engineered for performance across demanding industrial applications.

Crushed Synthetic Diamond Grits

Crushed Synthetic Diamond Grits (CDG-E)

Economical type with high strength, shaped for optimal performance in grinding and cutting tools.

Synthetic Diamond Micron Powder

Synthetic Diamond Micron Powder (DMP-E)

Made from superior single-crystal diamonds; ideal for electroplated and bonded tools.

Titanium-Coated Diamond

Titanium-Coated Diamond (KTD-Ti)

Enhanced adhesion and thermal stability due to Ti coating; improves tool life and grinding efficiency.

Nickel-Coated CBN

Nickel-Coated CBN (CBN-Ni)

Provides excellent dispersion and bonding in metal and resin matrices for high-performance grinding wheels.

High Strength Micron Powder

High Strength Micron Powder (DMP-HS)

High purity and strength for precision applications requiring consistent particle performance.

CBN Micron Powder

Cubic Boron Nitride (CBN-B5M)

Excellent grinding efficiency and wear resistance for hardened steel and superalloys.

Diamond Powder for Wire Saw

Diamond Powder for Wire Saw (DMP-WSD)

Optimized for diamond wire saws in photovoltaic and sapphire cutting applications.

PCD/PDC Diamond Powder

Diamond Powder for PCD/PDC (DMP-PCD)

Uniform particle shape and gradation for improved density and performance in polycrystalline compacts.

Industry Applications

Kumthai’s superhard materials are trusted across high-tech industries for precision, durability, and efficiency.

Automotive Industry

Used in precision machining of engine components, transmission parts, and brake systems requiring high reliability and efficiency.

Photovoltaic Industry

Diamond wire saws with Kumthai powders are used for cutting silicon wafers and sapphire substrates with minimal kerf loss.

Mobile & Electronics

Applied in grinding zirconia ceramics for smartphone casings, wearables, and electronic components.

25M+
Carats Monthly Output (Powder)
30M+
Carats Monthly Output (Grits)
50+
Countries Served
15+
Years of Expertise

Frequently Asked Questions

What is the difference between CDG-E and DMP-HS?

CDG-E refers to crushed synthetic diamond grits of economical type, used in grinding tools. DMP-HS is a high-strength micron powder with superior purity, ideal for precision electroplating and polishing.

Can you provide OEM/ODM services?

Yes, Kumthai offers full OEM and ODM services with custom packaging, labeling, and technical specifications based on client requirements.

What coating options are available?

We offer titanium (Ti), nickel (Ni), copper (Cu), and other metallic coatings to enhance bonding, thermal conductivity, and tool life.

How do I request a sample?

Please visit the official website or contact our sales team directly to request product samples and technical data sheets.

Get in Touch

For inquiries, samples, or technical support, reach out to our team.

Contact Information

  • Phone: +86-371-8709-0387
  • Email: [email protected]
  • Skype: fang.julian
  • WhatsApp: +86 18738183038
  • Fax: +86-371-6117-0993
  • Postal Code: 450000

Office & Factory

Head Office:
NO.233, 20th Floor, Unit 1, Building 2,
NO.6 Suoling Road, Jinshui District,
Zhengzhou, China

Factory Address:
Yancheng Industrial Park,
Luohe City, Henan Province, China

Visit Official Website to Contact

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