Notice of Participation in SEMICON Japan 2015

For dice only, the crystal orientation is 111.

Zhengzhou Duoma Superhard Materials Co., Ltd. (ZZDM SUPERABRASIVES CO., LTD.) offers cutting diamonds, Dia for polishing, micron powder for polishing, CBN, and a coating series. Our company has its own manufacturing plant and produces consistently from grinding to granulation and classification using our unique technology, capable of supplying from 0 to 1/10 micron to mesh sizes. Additionally, synthetic diamonds can be supplied for both resin bond and metal bond applications, ranging from submicron sizes to mesh sizes. To develop products that meet the needs of the international market, our ZZDM research and development team continues to make unremitting efforts.

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• Dice

Colorless synthetic single crystal diamond rough, synthetic diamond rough.

Zhengzhou Duoma Superhard Materials Co., Ltd. (ZZDM SUPERABRASIVES CO., LTD.) offers cutting diamonds, polishing diamonds, micron powders for polishing, CBN, and a coating series. Our company has its own manufacturing facility and conducts consistent production from crushing to granulation and classification using proprietary technology, capable of supplying from 0 to 1/10 micron to mesh sizes. Additionally, synthetic diamonds can be supplied for both resin bond and metal bond applications, ranging from submicron sizes to mesh sizes. Furthermore, to develop products that meet the needs of the international market, our ZZDM R&D team continues to make unremitting efforts.

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Equipped with thermal stability and wear resistance.

Features: Manufactured using high-strength diamond as the base material, it has a blocky shape, concentrated particle size distribution, pure surface, thermal stability, and wear resistance. Applications: Specifically designed for the production of PCD/PDC and dies, it is widely applied in metal bond, vitrified bond, and electroplated tools.

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Amber color, regular block structure, medium toughness.

Features: Amber, uniform and blocky shape, with intermediate toughness. Applications: Suitable for wrapping in resin bond systems and for the production of PCBN sintered bodies. PS: The CBN micron series can also be coated with Ti, Ni, Cu, etc.

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Good dispersion and difficult to crack.

Features: In response to customer needs, we offer various types of micron coatings. The coating layer enhances the performance of diamonds.

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Si Coating (Coating Diamond)

The silicon layer enhances the thermal stability and wear resistance of diamond abrasives, preventing the corrosion of the metal iron. Additionally, the chemical layer improves the bonding and abrasive retention, as well as thermal stability, thereby extending the tool's lifespan and improving processing quality.

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High-quality diamond micron powder

Features: Manufactured using medium to high-quality diamonds as the base material, it has irregular shapes, concentrated particle size distribution, pure crystal surfaces, and excellent polishing rates. Applications: Widely used for stone, tile, concrete, and gemstone wrapping. It is also suitable for the production of slurries and pastes. It is widely applicable to vitrified bonds, metal bonds, and electroplated tools. PS: MPS can be coated with Ni, Ti, and Cu.

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High-quality diamond micron powder

Features: Manufactured using high-quality diamonds as the base material, it has a uniform and blocky shape, concentrated particle size distribution, and a pure surface. Oversize and fine sizes are strictly controlled. Applications: Suitable for lapping optical glass, ceramics, SiC, semiconductors, and sapphire wafers. Widely applicable to vitrified bond, metal bond, and electroplated tools. PS: MPT can be coated with Ni, Ti, and Cu.

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High-quality diamond micron powder

Features: Manufactured using high-quality diamonds as the base material, it has a uniform and blocky shape, concentrated particle size distribution, and a pure surface. Oversize and fine sizes are strictly controlled. Applications: Suitable for lapping optical glass, ceramics, SiC, semiconductors, and sapphire wafers. Widely applied in vitrified bond, metal bond, and electroplated tools. PS: MPT can be coated with Ni, Ti, and Cu.

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Gray, blocky shape, polycrystalline structure.

Features: It is a resin-bonded micron powder. It has a gray color, a blocky shape, high brittleness with a polycrystalline structure, a concentrated particle size distribution, and excellent self-sharpening properties, which produce new cutting edges during work. Applications: Suitable for lapping tungsten, glass, ceramics, quartz, etc. PS: GMP can be coated with Ni and Cu.

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Gray-black color, regular lump shape, high toughness and high thermal stability.

Features: Gray, uniform and blocky shape, with toughness and thermal stability. Applications: Widely used for wrapping in resin bond and vitrified bond systems, and also suitable for the production of PCBN sintered bodies, pastes, and grinding wheels. PS: The CBN micron series can also be coated with Ti, Ni, Cu, etc.

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Natural diamond micron powder

Features: Unlike the production method of ordinary micron powder, ASM is synthesized without crushing, using high temperature and high pressure. Characteristics and Advantages: ★ Contains uniform and perfect crystals like mesh abrasives, with no polymer or cluster abrasives ★ Very concentrated particle size distribution ★ Excellent strength, toughness, and thermal stability ★ Achieves a pure standard grade of ppm, with ASM purity ≤ 100 ppm ★ Excellent polishing rate and cutting efficiency, resulting in a good mirror effect ★ Energy-saving ★ Long service life Applications: Due to its excellent strength, toughness, and thermal stability, the application fields are wide. ★ Metal bond and electroplated wheels (back grinding wheels, edge grinding wheels) ★ High-quality PDC manufacturing, improving impact resistance, wear resistance, and thermal stability ★ Manufacturing of diamond wires for cutting sapphire, SiC, GaN, Si, etc. ★ Cutting, grinding, polishing: Fields such as semiconductors, electronic components, optics, IT industry, automotive & aerospace, etc. Sizes: 15-25, 20-30, 220-30, 22-36, 20-40, 30-40, 30-50, 36-54, 40-60 ASM can be coated with Ni and Ti.

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Sub-diamond, micron powder

Features: Submicron and nanoscale single crystal diamond Applications: ★ Suitable for the manufacturing of lapping and paste for hard and magnetic materials such as IC chips, neodymium magnets, iron, quartz, gemstones, optical lenses, and precision ceramics. ★ Can also be used as additives for composite coatings and wear-resistant materials, or as lubricants. ★ Ideal as polishing materials for optical instruments, precision instruments, and in the aerospace and automotive industries. Sizes: 0-0.05, 0-0.08, 0-0.1, 0-0.125, 0-0.2, 0-0.25

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Applicable to cutting tools such as end mills, dresser tools, and die applications.

Our company can provide two types of single crystal diamond plates. One is produced through a method called Chemical Vapor Deposition (CVD), and the other is produced through a method called High Pressure High Temperature (HPHT). Our single crystal diamonds are widely used in cutting tool applications such as inserts, end mills, and dies, as well as in dresser applications. Our products are primarily diamonds with a crystal orientation of 100, but we can also provide single crystal diamonds SCD-WD (with a crystal orientation of 111) for die applications.

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Tungsten coating

Tungsten easily bonds with the bond, so the tungsten layer enhances the bonding strength between the diamond abrasive and the bond. Tungsten and diamond abrasives form tungsten carbide, which is a main component of hard alloys, providing excellent wear resistance and thermal conductivity. In particular, this excellent thermal conductivity quickly transfers the heat generated during work, preventing the carbonization of the diamond abrasives and extending the tool's lifespan. It is applied in the manufacturing of cutting tools for reinforced concrete.

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Absorbing the benefits of diamonds and WC, it possesses high wear resistance and excellent impact strength.

PDC is produced through the sintering of diamond and WC using high-temperature and high-pressure technology. PDC "absorbs" the advantages of diamond and WC, possessing high wear resistance and excellent impact strength. It is applicable in the manufacturing of various types of drilling tools (for example: oil, geological, and engineering drilling bits, etc.). Our standard shape is round, but it is also possible to manufacture according to customer requirements.

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It is ideal to use materials for manufacturing tools that are long-lasting and highly efficient.

PCD sintered bodies are products that have been sintered with micron diamond abrasives on a hard substrate using high-temperature and high-pressure technology. PCD sintered bodies are cutting tool materials that combine the excellent properties of natural diamonds, such as high hardness, wear resistance, and low friction coefficient, with the impact strength characteristics of the hard substrate. To meet various applications, our company can provide PCD sintered bodies in different shapes and sizes.

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It is optimal for processing cutting tools made of high-hardness ferrous and non-ferrous metals.

PCBN sintered bodies are composite superhard materials sintered with polycrystalline CBN on a superhard substrate using high-temperature and high-pressure technology. PCBN sintered bodies combine the excellent high hardness, wear resistance, and thermal stability of CBN with the high toughness of the superhard substrate, making them ideal materials for cutting tools for hard iron and non-ferrous metals.

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Applicable to milling bits and oil drilling bits.

In the same high-temperature and high-pressure environment, TSP has difficulty bonding with polycrystalline diamond and PCD products. TSP possesses wear resistance and thermal stability, and when temperatures reach 1200 degrees, the adhesive properties of TSP itself are inert, so the coefficient of TSP and diamond is the same. TSP is suitable for milling bits and oil drilling bits. Compared to natural diamonds, TSP is lower in cost and has a higher work rate.

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Diamond slurry, suspension, CBN paste

CBN paste has high thermal stability and chemical inertness, making it difficult to chemically react with elements such as iron metal. CBN paste possesses excellent lubricating and cooling properties. It is suitable for processing hard and tough materials (such as steel tools, steel tool modules, stainless steel, and heat-resistant metal alloys) and iron metals. We can provide both oil-based and water-based types.

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Diamond slurry, suspension, paste

Diamond paste is available in two types: oil-based and water-based. The oil-based paste is suitable for lapping hard materials (such as hard alloys, alloy steel, and carbide steel, which are brittle materials). The water-based paste is suitable for lapping surveying tools, cutting tools, and optical instruments made from metallographic, rock, and superhard materials (such as glass, ceramics, hard alloys, and natural gemstones).

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Diamond slurry, suspension

Features: Diamond slurry is a mixture of carefully selected high-quality diamond abrasives with liquids such as water or oil. It is widely used for polishing hard materials such as silicon wafers, gemstones, optical lenses, ceramics, hard disks, and hard alloys. Depending on the type of diamond, there are three varieties: single crystal, polycrystalline, and nano. We also provide original polishing slurry tailored to the products you handle.

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There are two types: electrophoretic coating and chemical coating.

Our company offers two types of coatings: electrodeposited coating and chemical coating. Nickel-coated products are applied in a resin bond system. Generally, we perform electrodeposited nickel coating at 30wt%, 55wt%, or 60wt%.

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Suitable for soft bond applications.

It is suitable for soft bond applications. The copper coating layer reduces high-temperature corrosion through the retention of diamond abrasives, effectively extending the tool's lifespan.

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Enhance the retention power of diamonds, alleviate thermal shock, and prevent oxidation and graphitization.

The titanium coating layer enhances the retention of synthetic diamond abrasives in the bond matrix, alleviates thermal shock, prevents oxidation and graphitization of the diamond abrasives, and extends the product's lifespan.

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The coating layer protects the diamond in high-temperature environments, preventing corrosion and graphitization.

Chromium has excellent wettability and affinity, so it forms chromium carbide on the surface of diamond abrasives through sintering. This chromium carbide enhances the retention of diamond abrasives and increases the bonding strength between the abrasives and the bond. Furthermore, the chromium coating improves the strength and corrosion resistance of the diamond abrasives.

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Cobalt Coating DIA/CBN

The cobalt layer enhances the static pressure strength and retention of diamond abrasives. Additionally, the cobalt on the surface increases the temperature at which the diamond abrasives undergo graphitization, expanding the necessary temperature range for the sintering of diamond tools.

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It is a nickel alloy coated product.

This is a nickel alloy coated product. The surface of the groove structure can enhance the holding power of synthetic diamonds in the coating layer and bond matrix. The composite coating product reduces the amount and wear of diamond abrasives, extending the tool's lifespan.

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Spike-shaped nickel alloy coated products

This is a spiked nickel alloy coated product. The coating layer enhances the holding power of synthetic diamond abrasives in the bond matrix, alleviates thermal shock, and prevents oxidation and graphitization. The spiked nickel alloy on the surface increases the weight of the diamond abrasives, improves sharpness, enhances cutting efficiency, and extends the tool's lifespan.

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Applicable to cutting tools, dressing tools, dies, etc.

Single crystal diamonds are synthesized using high-temperature and high-pressure technology, with strict control over temperature and pressure. They are widely applied in cutting tools for non-ferrous metals and non-metal materials, wheel dressers, special knives, vanishing tools, wire dies, and more. The products come in various sizes and thicknesses, with standard sizes: the length of the edge ranges from 2.0 mm to 8.0 mm, and the thickness can be provided from 0.8 mm to 1.2 mm. Sizes range from an edge length of 2.0 mm to 8.0 mm, and thickness from 0.8 mm to 1.2 mm. Grades: SCD11, SCD12, SCD13; SCD21, SCD22, SCD23; SCD31, SCD32, SCD33 Sizes: 3010, 3012, 3510, 3512, 4010, 4012, 4510, 4512, 5010, 6010, 7010, 8010

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Perfect cubic and octahedral shapes, transparent crystals.

Features: With top diamond abrasives, it has a perfect cubic or octahedral shape, and the interior of the transparent crystal is very pure. MSD100 not only has good wear resistance but also exhibits excellent impact resistance and thermal stability. Applications: Suitable for cutting and drilling applications used in extremely harsh environments. It is applicable for the manufacturing of high-quality blades, wire saws, and core bits. PS: Coating is also possible. Size: 20/25 to 60/70

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A perfect transparent crystal of a hexagonal or octagonal shape, possessing good micro-fracture properties.

Features: With high-quality diamond abrasives, MSD80 possesses good micro-fracture properties along with excellent wear resistance, thermal stability, and impact resistance, thanks to its perfect cubic and octahedral transparent crystals. Applications: Suitable for cutting and drilling applications in high-load environments (processing of reinforced concrete and hard granite). It is applicable for tool manufacturing. PS: Coating is also possible. Size: 20/25 to 60/70

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A transparent cube or octahedron shape, with a very pure interior.

Features: Made with medium to high-quality diamond abrasives, the crystals are transparent and have cubic or octahedral shapes, with very high purity internally. MSD70 offers good impact resistance and thermal stability. Applications: Suitable for processing hard materials (granite, concrete, marble, asphalt, etc.) in high-load environments. PS: Coating is also possible. Sizes: 20/25 to 60/70

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Complete hexagonal or octahedral shapes, transparent crystals.

Features: Made with mid to high-quality diamond abrasives, featuring complete cubic and octahedral shapes, the transparent crystals are very pure. MSD60 offers excellent cutting performance along with impact resistance and thermal stability. Applications: Suitable for processing medium-strength stones (marble, granite, ceramics, and concrete) in mid to high-load environments. PS: Coating is also possible. Sizes: 20/25 to 60/70

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It has a regular shape and possesses moderate impact resistance and thermal stability.

Features: Made with medium-quality diamond abrasives, they have a regular shape and possess moderate impact resistance and thermal stability. Applications: Suitable for processing low-strength stones (marble, granite, ceramics, and concrete) in medium-load environments. PS: Coating is also possible. Size: 20/25 to 60/70

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Regular transparent crystal

Features: Made with medium to low-quality diamond abrasives, featuring regular transparent crystals, with moderate impact resistance and thermal stability, providing good self-sharpening properties. Applications: Suitable for processing low-strength materials in medium to low-load environments. PS: Coating is also possible. Size: 20/25 to 60/70.

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Low-quality diamond abrasives with low impact resistance and thermal stability.

Features: Low-quality diamond abrasives with low impact resistance and thermal stability. Applications: Suitable for processing soft materials in low-load environments, as well as for processing stone or concrete. PS: Coating is also possible. Size: 20/25 to 60/70

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Regular diamond abrasives with good brittleness.

Features: MSD20 has regular diamond abrasives and good brittleness, but low impact resistance and thermal stability. Applications: Suitable for electroplated tools used in low-load environments and metal bond applications. PS: Coating is also possible. Size: 20/25 to 60/70.

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Perfect cubic and octahedral diamond abrasives, uniform shape.

Features: Complete cubic and octahedral diamond abrasives with uniform shapes and very pure transparent crystal interiors. They possess high impact resistance and excellent thermal stability. Applications: Suitable for metal bond applications used under extremely harsh conditions. Applicable for high-load cutting, drilling, and polishing. PS: Coating is also possible. Sizes: 60/80 to 500/600.

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Transparent cubic and octahedral crystals.

Features: Transparent cubic and octahedral crystals with excellent impact strength and thermal stability. It combines long service life with good cutting performance. Applications: Suitable for metal bond applications used under harsh conditions and the production of electroplated tools. Widely used for processing glass, ceramics, stone, gemstones, etc. PS: Coating is also possible. Size: 60/80 to 500/600

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Regular cubic and octahedral crystals.

Features: Medium to high-grade metal bond abrasives with regular hexagonal or octahedral crystals, offering toughness, impact resistance, and thermal stability. Applications: Widely used for processing materials that withstand medium to high loads (such as glass, ceramics, quartz, etc.) and for metal bond applications. PS: Coating is also possible. Sizes: 60/80 to 500/600.

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Combining regular crystals and irregular crystals.

Features: It combines regular and irregular crystals, providing intermediate toughness and intermediate strength. Applications: It is used for various purposes in the glass and ceramics industries and is widely applied in metal bond applications. PS: Coating is also possible. Mesh: 60/80-400/500

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A good transparent bulk crystal with a rough surface, low strength, and low toughness.

Features: Low-quality diamond abrasives, yellow crystals, rough surface, low strength and toughness. Applications: Suitable for vitrified bond and metal bond low-load applications. Sizes: 60/80~500/600 PS: Coating is also possible.

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Dark-colored polycrystalline, irregular shape.

Features: Dark-colored polycrystalline, irregular shape, high strength, excellent thermal stability, good micron crushability, and combines grinding efficiency with long service life. Applications: Suitable for electroplated applications and metal bond applications. PS: The CBN series can also be coated with titanium, nickel (60wt%), copper (50wt%), etc. Size: 50/60 to 325/400.

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Golden blocky single crystal, perfect crystal.

Features: Gold-colored blocky single crystals with perfect crystallinity, high strength, and excellent thermal stability. Applications: Demonstrates excellent grinding efficiency and lifespan in high-temperature grinding processes, making it particularly suitable for electroplated bond applications. It is also widely applicable in metal bond applications. PS: The CBN series can be coated with materials such as titanium, nickel (60wt%), and copper (50wt%). Size: 40/50~325/400

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Semi-transparent Sevilla single crystal

Features: Semi-transparent single crystal of Cevia, perfect crystal, high strength, and excellent thermal stability. Applications: Suitable for metal bond applications, vitrified bond applications, and electrodeposition applications. PS: The CBN series can also be coated with titanium, nickel (60wt%), copper (50wt%), etc. Size: 40/50~325/400

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Semi-transparent Sevilla single crystal, regular shape.

Features: Semi-transparent CBN single crystals with regular shapes, excellent cutting performance, high strength, and good thermal stability. Applications: Suitable for vitrified bond applications, metal bond applications, and high-strength resin bond applications. PS: The CBN series can also be coated with titanium, nickel (60wt%), copper (50wt%), etc. Size: 40/50~325/400

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Translucent amber-colored single crystals with regular shapes, high strength, and good cutting ability.

Features: Transparent amber-colored single crystals with regular shapes, high strength, and good cutting ability. Applications: Suitable for metal bond applications, vitrified bond applications, and electroplated applications. Sizes: 50/60~325/400 PS: The CBN series can also be coated with materials such as titanium, nickel (60wt%), and copper (50wt%).

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It is an amber-colored single crystal with high toughness and high thermal stability.

Features: Transparent amber-colored single crystals with irregular shapes, medium strength, and good cutting ability. Applications: Suitable for electroplated bond applications due to its sharp edges and unique micron crushing properties. It is also suitable for resin bond applications. PS: The CBN series can also be coated with materials such as titanium, nickel (60wt%), and copper (50wt%).

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It is a black granular crystal with intermediate toughness and high thermal stability.

ZZDM SUPERABRASIVES CO., LTD. is located in the Zhengzhou High-tech Industrial Development Zone and is a comprehensive company engaged in research and development, production, and sales. Our company is situated in a beautiful environment with convenient transportation. We can provide various types of diamond and CBN superhard materials. These products are widely applied in fields such as cutting, vanishing, and boring. We are a leading manufacturer of industrial diamonds in China. Relying on our skilled craftsmanship, advanced production capabilities, and strict quality management system, we offer competitive products to overseas customers. Additionally, we have obtained ISO 9001:2008 certification, ensuring quality and supply stability. To date, our products have been exported to over 40 countries, including Europe, America, and Asia, earning a good reputation. With the corporate philosophy of "Craftsmanship, Integrity, Win-Win," we look forward to cooperating with your company.

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Black single crystal, irregular semi-blocky shape, medium strength, good cutting ability, grinding efficiency.

Features: Black single crystal, irregular semi-blocky shape, medium strength, good cutting ability, combining grinding efficiency and service life. Applications: Used for resin bond and vitrified bond applications. PS: The CBN series can also be coated with titanium, nickel (60wt%), copper (50wt%), etc. Size: 50/60~325/400

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Apply to low-temperature polishing and resin bond systems.

Features: Black single crystal, irregular shape, low strength, easy to break, and excellent cutting performance. It has good overall performance for wheel polishing efficiency and glossing. Applications: Widely used for resin bond applications and low-temperature grinding. PS: The CBN series can also be coated with materials such as titanium, nickel (60wt%), and copper (50wt%). Size: 40/50-325/400

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Diamond wire dedicated micron powder

Features: Manufactured with high-quality diamonds, the regular crystal surface is very pure. The particle size distribution is concentrated, and there are plenty of effective grinding grains, providing both grinding power and wear resistance. Applications: Designed for grinding organic and inorganic brittle materials, suitable for the production of diamond wires. PS: DWM can be coated with Ni and Ti.

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Irregular green shape, low impact resistance.

Features: Irregular green shape with low impact resistance. Applications: Widely used for processing stone, concrete, and ceramics. Mesh: 50/60-500/600

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Yellow with a regular shape, intermediate crushability.

Features: Regular yellow shape with intermediate crushing ability and sharp edges. Applications: Suitable for processing stones, hard alloys, magnetic materials, natural diamond rough, and gemstones. Size: 30/40~500/600

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Green, block-shaped, with intermediate brittleness and good self-sharpening properties.

Features: It has a yellow semi-blocky shape and possesses medium to low crushing properties. When impacted, fragments peel off from each abrasive grain, allowing new edges to regenerate. Applications: Suitable for processing hard materials such as tungsten and PCD. Sizes: 50/60~500/600 Mesh: 60/80-400/500

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Yellow blocky shape with regular crystals.

Features: Yellow blocky shape with regular crystals, low crushing characteristics, and long service life, suitable for high-load applications. Applications: Suitable for glass and hard alloy wrapping. Size: 50/60 to 500/600.

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Reduce thermal shock, prevent oxidation and graphitization, and extend the product's lifespan.

Generally, the surface of the YRD series is coated with Ni (30wt% or 55wt%) and copper (50wt%). This enhances the retention of diamond abrasives in the bond matrix, alleviates thermal shock, prevents oxidation and graphitization, and extends the product's lifespan. Mesh: 30/40-500/600

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Polycrystalline structure, light green color, irregular shape.

Features: This is an economy resin bond diamond abrasive. It has a polycrystalline structure, a light green color, and irregular shapes, providing high strength and brittle crystals, combining grinding efficiency and service life. Applications: Suitable for processing hard alloys, ceramics, glass, and non-metallic materials such as PCD. Mesh: 50/60-400/500

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Polycrystalline structure, green blocky shape, intermediate brittleness, and good self-sharpening properties.

Features: This is a standard resin bond diamond abrasive. It has a polycrystalline structure, green blocky shape, intermediate brittleness, and good self-sharpening properties. Applications: Suitable for wet or dry grinding of ceramics, glass, and hard alloys such as tungsten. Mesh: 50/60-400/500

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Multicrystalline structure, gray, semi-blocky shape.

Features: This is a premium resin bond diamond abrasive. It has a polycrystalline structure, is gray in color, and has a semi-blocky shape, providing high brittleness and excellent self-sharpening properties. With good micro-fracturing ability, it offers superior grinding efficiency and has a remarkable effect on polishing high-demand surfaces. Applications: Suitable for lapping hard alloys such as tungsten and ceramics. Mesh: 50/60-400/500

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Reduce high-temperature corrosion and effectively extend the tool's lifespan.

Generally, the surface of the RGD series is coated with Ni (30wt% or 55wt%) and copper (50wt%). The coating layer reduces high-temperature corrosion through the retention of diamond abrasives, effectively extending the tool's lifespan. Mesh: 50/60-500/600

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Low-quality diamond micron powder

Features: Made from easily crushable diamonds, with irregular shapes and a wide particle size distribution. Applications: Suitable for low-load lapping.

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It is ideal as a manufacturing material for long-lasting and high-efficiency tools.

PCD cutting tool blanks are manufactured through the sintering of micron diamond abrasives and hard alloys, as well as polycrystalline diamond abrasives and hard alloys, in environments of ultra-high temperature and ultra-high pressure. The hardness and wear resistance of this product are roughly the same as that of natural diamond, and its toughness is almost similar to that of hard alloys. It is ideal to use these materials for manufacturing long-lasting and high-efficiency tools. Polycrystalline diamond cutting blanks have different physical characteristics, making them suitable for special applications and capable of meeting various customer requirements.

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Applicable to machining of cutting tools, wheel correction tools, dies, etc.

Large single crystal diamonds are synthesized in a high-temperature and high-pressure environment through strict control of temperature and pressure. They are suitable for processing non-ferrous metal and non-metal materials for cutting tools, wheel dressing, special knives, polishing tools, wire dies, and more. The sizes range from 2.0 mm to 8.0 mm in length and from 0.8 mm to 1.2 mm in thickness. Grades: SCD11, SCD12, SCD13; SCD21, SCD22, SCD23; SCD31, SCD32, SCD33. Sizes: 3010, 3012, 3510, 3512, 4010, 4012, 4510, 4512, 5010, 6010, 7010, 8010.

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• Hand polishing and filing

Synthesize under high temperature and high pressure conditions through strict control of temperature and pressure.

Large single crystal diamonds are synthesized in a high-temperature and high-pressure environment through strict control of temperature and pressure. They are suitable for processing non-ferrous metal and non-metal materials such as cutting tools, wheel dressing, special knives, polishing tools, and wire dies. The products come in different sizes and thicknesses, with sizes ranging from 2.0 mm to 8.0 mm in length and thicknesses from 0.8 mm to 1.2 mm. Large single crystal grades include CMD20, CMD40, CMD60, CMD80, CMD90, and CMD100. Large single crystal sizes are 4.2, 4.0, 3.8, 3.6, 3.4, 3.2, 3.0, 2.8, 2.6, 2.4, 2.2, 2.0, 10/12, 12/14, 14/16, 16/18, and 18/20.

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Can be manufactured in high temperature and high pressure environments.

PCD dice blanks are manufactured in high-temperature and high-pressure environments. Through the interconnection of high-quality diamonds, they achieve a higher hardness, and their wear resistance and thermal conductivity are roughly the same as natural diamonds, while their toughness is almost comparable to tungsten alloys. They are optimal as manufacturing materials for high-precision and long-lasting dies. Our PCD comes in two series: the BCD series and the TSP series.

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• Other abrasives

The hardness, wear resistance, and thermal stability of CBN are generally the same, and its toughness is almost similar to that of hard alloys.

PCBN blanks, designed specifically for cutting tools, are superhard materials made from a compound of polycrystalline CBN and hard alloys, sintered under ultra-high temperature and ultra-high pressure conditions. The hardness, wear resistance, and thermal stability of PCBN blanks are roughly the same as CBN, and their toughness is almost comparable to that of hard alloys. Due to their high hardness, they are ideal materials for machining cutting tools for ferrous and non-ferrous metals. PCBN blanks enable high-speed cutting and are suitable for continuous processing. When used for dry cutting, they operate quietly and are environmentally friendly. They are applicable for milling, boring, and reaming of materials with hardness HRC 45-65 (for example, cast iron, hard bearing steel, nickel and chromium alloys, etc.). So far, our company has been able to provide round, square, 80% rhombus, and triangular shapes.

• Grindstone
• Diamond cutter
• Other abrasives

There are two types: oil-soluble and water-soluble.

Diamond compounds come in two types: oil-soluble and water-soluble. Oil-soluble compounds are suitable for lapping and polishing hard materials. Water-soluble compounds are used for polishing and processing surveying instruments, as well as for polishing sealed parts made from hard and brittle materials (such as glass, ceramics, and gemstones).

• Grindstone
• Diamond cutter
• Other abrasives

Coat the surface with Ni (30% or 56%) and copper (50%).

Features: Generally, the surface of the RGD series is coated with Ni (30% or 56%) and copper (50%). Benefits: Enhances diamond retention, mitigates thermal shock, prevents oxidation and graphitization, and extends the product's lifespan.

• Grindstone
• Diamond cutter
• Other abrasives

Coat with Ni (30% or 56%) and copper (50%).

Features: Generally, the surface of the diamond is coated with Ni (30% or 56%) and copper (50%). Benefits: Enhances the retention of diamond and CBD, mitigates thermal shock, prevents oxidation and graphitization, and extends the product's lifespan. Mesh: 60/80-400/500

• Grindstone
• Diamond cutter
• Other abrasives

Coat the surface of CBN with Ni (30% or 55%) and copper (50%).

Coating CBN: Coat the surface of CBN with Ni (30% or 55%) and copper (50%). Coating Benefits: Enhances the retention of CBN, alleviates thermal shock, prevents oxidation and graphitization, and extends the product's lifespan. Mesh: 60/80-400/500

• Grindstone
• Diamond cutter
• Other abrasives

Technoa Co., Ltd. (Headquarters: Gifu City, Gifu Prefecture, Representative Director: Koji Yamazaki) will hold a limited-time summer special event, "Monozukuri DX CAMP," from Saturday, August 9, 2025, to Saturday, August 23, 2025. Small and medium-sized manufacturing companies face challenges such as a shortage of specialized personnel and a lack of know-how and information, which act as barriers to promoting DX (digital transformation). This event will provide a step-by-step approach to "realistic DX," based on the know-how accumulated by Technoa while supporting the DX transformation of small and medium-sized manufacturing companies. It will be structured as DAY.1 to DAY.5, offering an opportunity for skill development during the summer break and supporting the learning and growth of small and medium-sized manufacturers. For more details, please refer to the related link.

JOHNAN has updated a webpage summarizing the selection points to solve various challenges in large-scale processing (quality maintenance, short delivery times, costs). This article introduces the challenges faced in large-scale processing based on years of knowledge and experience, as well as the key points for choosing the optimal contractor that balances quality and short delivery times. If you are looking for a reliable contractor, please make use of our "Large-Scale Processing Solutions." ▼For more details "Large-Scale Processing Solutions to Achieve Product Quality and Short Delivery Times" https://www.johnan.com/solution/process/processing-assembly/post_8.html

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but our company will be closed for summer vacation during the following period. 【Closure Period】 From Saturday, August 9, 2025, to Thursday, August 14, 2025. We will resume normal business operations on Friday, August 15. We appreciate your understanding during this time and apologize for any inconvenience caused.

JOHNAN has released a video that clearly explains the implementation technology for stretchable films, which are expected to be utilized in wearable devices and medical equipment. In the video, you can see how the film, which has excellent elasticity, stretches and contracts. Please check our high technological capabilities and the flexible characteristics that are useful for product development. We hope this will help you generate new ideas in product development. ▼You can watch the video here [Link to the implementation page for stretchable films] https://www.johnan.com/dms/mounting/filmdevic/stretchable/

"Because it's an invisible place, we won't overlook it." Japan's climate is characterized by high temperatures and humidity, and particularly after typhoons and heavy rains, the conditions can be harsh for homes. It's not just the roofs and exterior walls that are affected by rain and wind. The area beneath the floor is actually the most susceptible and often overlooked point. This time, we will explain the "checkpoints for under the floor" that should be confirmed after a typhoon or heavy rain, the "responses" if abnormalities are found, and measures for preventing recurrence. [Table of Contents] ■ Why is underfloor checking necessary? ■ Checkpoints to confirm after a typhoon or heavy rain ■ Responses when damage is discovered ■ Points for preventing recurrence ■ Suggestions from Seihou Products ■ Summary Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓