- Integrating synthetic diamond and CBN technologies for efficient processing of hard/brittle materials and ferrous metals

Against the backdrop of rising global demand for precision manufacturing and advanced material processing, superabrasive tools have become indispensable alongside bonded abrasives and coated abrasives. Nakamura – a brand renowned for its high‑quality saw blades – has been systematically expanding its superabrasive tool portfolio. Leveraging core technologies of synthetic diamond and cubic boron nitride (CBN), Nakamura delivers high‑precision, long‑life solutions for cemented carbides, semiconductors, aerospace components, die steels, and more.

Core Parameters: Concentration, Bond Type, and Grit Size

Nakamura superabrasive tools strictly follow industry standards. Abrasive concentration ranges from 25% to 150%, adaptable to different material removal loads. Bond types include resin (B) , metal (M) , vitrified (V) , as well as electroplated and brazed bonds – meeting diverse needs from rough grinding to precision finishing. The grit size system complies with GB/T 6409.2 and other national standards, ensuring consistent cutting performance for every grinding wheel and tool.

Performance Advantages: High Grinding Ratio, Wear Resistance, Low Temperature Rise

Nakamura superabrasive tools excel in four key areas:

High‑hardness machining capability – Diamond tools process cemented carbides, ceramics, optical glass, semiconductor materials, stone, and non‑ferrous metals. CBN tools are designed for tool steels, die steels, stainless steels, heat‑resistant alloys, and other ferrous metals – particularly challenging materials such as high‑vanadium high‑speed steel.

Extended tool life and economy – High grinding ratio and slow wear significantly reduce cost per workpiece; in automated lines, fewer tool changes are required.

Excellent dimensional stability – The tools maintain their shape, and many resin‑bond products require no dressing, greatly improving machining accuracy and efficiency.

Low‑temperature grinding – Low temperature in the grinding zone prevents burning, cracking, and microstructural damage to the workpiece, extending component service life.

Product Range: From Sintered Metal to Brazed Processes – Covering All Applications

Nakamura offers a full line of superabrasive tools based on bond type and manufacturing process: sintered metal bond, electroplated metal bond, brazed metal bond, as well as vitrified and resin bonds. The diamond circular saw blade – the brand's traditional strength – has built a solid reputation in cutting stone, concrete, and ceramics. Meanwhile, cylindrical grinding wheels, straight wheels, cup wheels, and other abrasive products are widely used for precision machining of cemented carbide tools, semiconductor wafers, and aerospace superalloys.

Technical Heritage and Strict Compliance

Since the 1960s, China has been developing synthetic diamond abrasive tools, and by the 1990s a complete product system had been established. Nakamura is deeply integrated into this technological evolution and strictly follows national standards such as GB/T 35479-2017 and GB/T 6409.2-2009 for shape, dimensions, tolerances, and marking methods. Recognising the higher process challenges of CBN tools, Nakamura has leveraged its years of experience in metal‑bond and brazing technologies from saw blade manufacturing to achieve significant breakthroughs, launching several CBN abrasive products for high‑efficiency ferrous metal grinding.

Brand Positioning: Focused on Mid‑stream & Down‑stream Applications, Providing an Integrated "Cutting + Grinding" Solution

Nakamura concentrates on the mid‑to‑downstream application of superabrasive tools. Drawing on its manufacturing expertise and continuous R&D efforts in saw blades and superabrasive products, the brand is committed to offering customers an integrated solution from cutting to grinding. High‑hardness machining ability, long life, dimensional stability, and low‑temperature grinding performance remain its core values, helping manufacturers improve quality and productivity.

Looking Ahead

Nakamura will continue to increase R&D investment, expand into high‑end markets such as semiconductors, precision dies/molds, and aerospace, and pursue precision future with superabrasive quality.