CBN-A20 Amber Regular CBN – High-Toughness Multi-Bond CBN for Precision Ferrous Metal Grinding
Product Description
CBN-A20 combines uniform amber color and regular-shaped CBN crystals with tight particle size distribution, ensuring even dispersion and predictable grinding behavior across all major bond types.
Its high-toughness crystal structure resists micro-fracturing under heavy grinding forces (up to 40 N/cm²), maintaining sharpness and surface precision during extended use. Compared with generic CBN abrasives, CBN-A20 extends tool life by 25% and enables surface finishes as fine as Ra ≤1.2 μm—ideal for precision tool grinding and ferrous component finishing.
Unlike single-bond CBN products, CBN-A20 is engineered for full compatibility with vitrified, metal, and electroplated bonds, allowing manufacturers to streamline inventory while achieving consistent performance across multiple product lines.
Core Advantages
- 🔸 Multi-Bond Compatibility: Works seamlessly with vitrified, metal, and electroplated bonds, reducing the need for multiple CBN grades in production.
- 🔸 High-Toughness Structure: Withstands high grinding pressure and thermal stress, ensuring edge stability during aggressive cutting of ferrous alloys.
- 🔸 Precision Performance: Enables high-accuracy surface finishing (Ra ≤1.2 μm) in stainless steel and tool steel machining.
- 🔸 Extended Tool Life: Lasts up to 25% longer than generic multi-bond CBNs, reducing wheel dressing frequency and total tooling costs.
- 🔸 Global Versatility: Suitable for industrial-scale manufacturing and precision workshop applications, fully meeting international quality standards.
Technical Specifications
| Item | Details |
|---|---|
| Code No. | CBN-A20 |
| Color | Amber |
| Crystal Shape | Regular |
| Toughness | High |
| Available Mesh Sizes | 50/60–325/400 mesh |
| Bond Compatibility | Vitrified bond, Metal bond, Electroplated bond |
| Target Materials | Ferrous metals, Alloy steel, Stainless steel, Tool steel |
| Recommended Grinding Pressure | ≤ 40 N/cm² |
| Surface Finish (Ra) | ≤ 1.2 μm |
| Durability Improvement | +25% vs. generic CBN |
FAQ
Q1: What makes CBN-A20 suitable for electroplated tools?
A: Its regular crystal structure ensures strong mechanical anchoring in nickel electroplated coatings, preventing grit loss and ensuring high precision in ferrous part shaping such as tool steel dies.
Q2: Can CBN-A20 handle high-speed grinding?
A: Yes. With its high-toughness structure, CBN-A20 supports high-speed grinding up to 6,000 RPM, commonly used in industrial machining of stainless steel and alloy components.
Q3: Which mesh sizes of CBN-A20 are best for vitrified bond wheels?
A: 120/140 to 230/270 mesh are optimal—small enough for precision surface finishing (Ra ≤1.2 μm) while maintaining efficient cutting power and bond retention.
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CBN-A10 Amber Irregular CBN (50/60–325/400 Mesh) – Resin Bond CBN for Ferrous Metal Grinding
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