- Amber Micron CBN Crystals: Indicate high crystal integrity, surface cleanliness, and thermal stability.
- High Strength and Toughness: Withstands heavy grinding loads and high contact pressure.
- Excellent Thermal Stability: Maintains performance in high-temperature grinding and sintering environments.
- Sharp Angular Particle Structure: Provides strong cutting force and efficient material removal.
- High Surface Cleanliness: Supports stable bonding and consistent tool performance.
- Balanced Grinding Performance: Ensures both high efficiency and extended tool life.
CBN-A80M – Metal Bond System
20+ Years Experience
Ultra-Precision Quality
Customized Solutions
CBN-A80M is a high-performance micron-sized monocrystalline cubic boron nitride powder developed for demanding precision grinding and superhard material synthesis. Manufactured from high-purity synthetic CBN through controlled crushing and classification, this grade features a black-brown crystal appearance, high strength, high toughness, and excellent thermal stability. It delivers strong grinding force, stable cutting performance, and reliable surface quality in vitrified and metal bond systems, while also meeting the requirements for PCBN and CBN polycrystalline compact production.
Features
Specifications
Available Grit Sizes
- Ultra-Fine Grits (0–1μm):
Designed for ultra-precision finishing and polishing, enabling controlled material removal and stable surface quality in high-accuracy lapping and polishing of ferrous materials, cemented carbides, and PCBN-related applications. - Fine Grits (1–10μm):
Suitable for fine grinding and pre-finishing processes, offering sharp cutting action and uniform results in vitrified and metal bond systems for hardened steels and precision components. - Medium Grits (10–40μm):
Engineered for general-purpose grinding and lapping, providing a balance between cutting efficiency and surface control in bonded CBN tools used for ferrous and high-hardness materials. - Coarse Grits (40–60μm):
Applied in rough grinding and high stock removal operations, delivering strong grinding force and thermal stability for demanding industrial grinding conditions.
Comparison Table of Micron Diamond Powder Particle Size
| China Standard JB/T 17990-1790 |
US / International Standard ANSI B74-1981 |
Japan Standard Mesh JIS 6002-63 |
Median Size D50 (μm) |
|---|---|---|---|
| W0.2 | 0–0.2 | 80000 | 0.1 |
| W0.25 | 0–0.25 | 60000 | 0.11–0.20 |
| W0.5 | 0–0.5 | 30000 | 0.20–0.30 |
| W1 | 0–1 | 15000 | 0.6–0.8 |
| W1.5- | 0–2 | 13000 | 1.0 |
| W1.5 | 1–2 | 12000 | 1.1–1.3 |
| W2.5 | 1–3 | 10000 | 1.6–1.8 |
| W3 | 2–3 | 7000 | 1.9–2.1 |
| W3.5 | 2–4- | 6500 | 2.2–2.6 |
| W3.5 | 2–4 | 6000 | 2.6–3.0 |
| W4 | 2–5 | 5000 | 3.1–3.4 |
| W5 | 3–6 | 4000 | 3.5–4.5 |
| W6 | 4–6 | 3500 | 4.4–5.0 |
| W7 | 4–8 | 3000 | 5.0–6.0 |
| W10- | 4–9 | 2500 | 6.1–6.5 |
| W10 | 5–10 | 2000 | 6.5–7.3 |
| W10+ | 6–12 | 1800 | 7.3–8.3 |
| W12 | 8–12 | 1600 | 8.3–9.0 |
| W14 | 7–14 | 1500 | 9.1–10.5 |
| W14 | 8–16 | 1300 | 10.0–12.0 |
| W20- | 10–20 | 1200 | 12.5–15.0 |
| W20 | 12–22 | 1000 | 15.0–17.0 |
| W20+ | 15–25 | 800 | 18.0–20.0 |
| W28 | 20–30 | 700 | 20–23 |
| W28+ | 22–36 | 600 | 23–26 |
| W40- | 20–40 | 500 | 26–29 |
| W40 | 30–40 | 450 | 29–32 |
| W40+ | 35–45 | 400 | 32–36 |
| W50 | 36–54 | 37–43 | |
| 325/400 | 320 | 43–48 | |
| 270/325 | 280 | 48–55 | |
| 230/270 | 240 | 56–64 | |
| 200/230 | 200 | 65–73 |
Applications
Ferrous Metals
Designed for precision grinding of iron-based and hardened materials.
- Hardened steel grinding and finishing
- Cast iron surface processing
- Precision machining of ferrous components
Automotive
Used in grinding and finishing of automotive steel parts under high-load conditions.
- Engine and transmission component grinding
- Gear and shaft machining
- High-accuracy steel part processing
Mold & Die
Suitable for grinding and finishing of hardened mold and die steels.
- Mold steel surface grinding and profiling operations
- Die component finishing and precision shaping
- Wear-resistant tooling applications and maintenance