CBN Inserts
CBN Inserts RNMN
- Hardened Steels (HRC 45–68)
- Applications: Gear wheels, shafts, bearings, dies, and molds.
- Grades: Case-hardened steel, bearing steel, tool steel, and high-strength alloy steel.
- Grey & Ductile Cast Irons (HB 150–450)
- Applications: Automotive brake discs, engine blocks, cylinder liners, and heavy pump housings.
- Grades: High-alloy cast iron, pearlitic grey cast iron, and nodular/ductile iron.
- Powder Metallurgy (PM) Materials
- Applications: Valve seats, valve guides, gears, and structural automotive components.
- Grades: Sintered iron alloys and high-density powder metal parts.
- Hard-Faced Sintered Alloys & Coatings
- Applications: Industrial rollers, slurry pumps, and wear-resistant cladding.
- Grades: Cobalt-based/Nickel-based laser cladding and thermal spray coatings.
| ISO | Diameter of inscribed circle（mm） | Thickness（mm） | Radius（mm） | |
|---|---|---|---|---|
| RNMN060400 | 6.35 | 4.76 | — | |
| RNMN090300 | 9.525 | 3.18 | — | |
| RNMN090400 | 9.525 | 4.76 | — | |
| RNMN090700 | 9.525 | 7.94 | — | |
| RNMN120400 | 12.7 | 4.76 | — | |
| RNMN120600 | 12.7 | 6.35 | — | |
| RNMN120700 | 12.7 | 7.94 | — | |
| RNMN150700 | 15.875 | 7.94 | — | |
| RNMN200800 | 20 | 8 | — | |
| RNMN201000 | 20 | 10 | — | |
| RNMN251000 | 25.4 | 10 | — | |
| RNMN251200 | 25.4 | 12 | — |
Key Features
- ISO standard insert shape and dimensions
- Grade options for finishing, semi-finishing and roughing
- Suitable for high-speed turning and precision machining
- Stable tool life and surface finish
- Custom insert options available according to drawing or sample
Applications
This insert can be used for turning, finishing and semi-finishing applications depending on the selected grade, edge preparation and cutting parameters.
Recommended Workpiece Materials
Choose the material list according to product type:
- CBN inserts: hardened steel, cast iron, high-speed steel, powder metallurgy, hard ferrous materials
- Ceramic inserts: cast iron, hardened steel, heat-resistant alloys
- PCD inserts: aluminum, copper, graphite, composites, non-ferrous materials
FAQ
What is this insert used for?
This insert is used for turning, finishing or semi-finishing operations depending on the workpiece material and cutting condition.
Can Huamin Tools provide custom sizes?
Yes. Huamin Tools can provide standard ISO inserts and custom inserts according to drawings, samples or machining requirements.
How do I choose the right grade?
The grade should be selected according to material, hardness, cutting speed, machining allowance and whether the cutting condition is continuous or interrupted.
How can I get a quotation?
Send the insert type, ISO code, workpiece material, machining condition and expected quantity through the contact page.
Related Products and Applications
- CBN Inserts: https://hmcbn.com/cbn-inserts/
- Ceramic Inserts: https://hmcbn.com/products/ceramic-inserts/
- PCD Inserts: https://hmcbn.com/products/pcd-inserts/
- Cutting Inserts and Turning Tools: https://hmcbn.com/products/
- Request a Quote: https://hmcbn.com/contact/
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