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CBN Tipped Inserts
Sundi CBN Tipped Inserts feature a premium Cubic Boron Nitride tip brazed onto a rigid carbide corner. This design delivers the extreme hardness required to machine hardened materials effectively while keeping tool costs low. It is the definitive solution for high-precision finishing and semi-finishing of hardened shafts, gears, and bearings
Ideal Materials for Tipped CBN
These inserts are the “Daily Drivers” for machine shops replacing grinding with turning.
Transmission Gears: Finishing the bore and face of hardened gears (8620, 20MnCr5).
Drive Shafts: Turning induction-hardened splines and bearing journals.
Bearings: Precision turning of inner and outer races (52100 Steel).
Brake Discs: Finishing Grey Cast Iron surfaces.
Versatile Hard Turning Solutions
- Hardness: CBN(PCBN) is significantly harder than conventional cutting materials, allowing the inserts to effectively and precisely cut hard materials without wearing out quickly.
High wear resistance: CBN(PCBN) has high resistance to abrasion and thermal degradation, providing the inserts with a longer life compared to other cutting tools.
Improved surface finish: Tipped CBN (PCBN) Turning Inserts produce a smooth and uniform surface finish, reducing the need for additional finishing operations.
High cutting speed: Tipped CBN (PCBN) Turning Inserts are capable of cutting at high speeds, increasing productivity and reducing the time required for cutting operations.
Versatility: These inserts can be used to cut a wide range of materials, including hardened steels, superalloys, and ceramics.
Environmental benefits: Tipped CBN (PCBN) Turning Inserts generate less heat and produce smaller chips, reducing the environmental impact of metalworking operations.
Cost-effectiveness: Although Tipped CBN (PCBN) Turning Inserts are more expensive initially, their long tool life and high-efficiency result in lower costs over the long term.
- High wear resistance
- Reduce the machine time
- Stable Performance
- Easy to use
Why Choose Sundi Tipped CBN Inserts?
Designed for “Finishing” and “Light Roughing” applications, these inserts maximize economy without sacrificing surface quality.
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1. Maximum Cost-Efficiency
Why pay for expensive CBN material you don't use? By optimizing the CBN tip size, Sundi provides a tool perfectly sized for finishing cuts. This significantly lowers the cost-per-part compared to solid or full-edge alternatives, making it ideal for mass production.
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2. Grinding-Level Precision
Our Tipped CBN inserts are precision ground to ensure strict repeatability. They excel at holding tight dimensional tolerances and producing excellent surface finishes (typically Ra 0.4 or better), allowing you to potentially eliminate secondary grinding operations.
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3. Flexible Corner Options
We offer various tipping configurations to suit your budget. From economical 1-Corner versions to high-productivity Multi-Corner (2, 3, or 4 tips) versions on negative inserts, you can choose the balance of price and tool life that fits your specific production run.
Technical Specifications
| Tech Data | |
|---|---|
| Type | ISO Indexable CBN inserts |
| Angle | Positive/ negative |
| CBN Grade | CBN 850/ CBN 010/CBN 025/CBN 302 |
| Tolerance | G/M |
| Work piece material | Aluminum and aluminum alloys Copper, brass and bronze alloys Carbon Fiber Graphite composites Reinforced plastics Ceramic Wood Fiberglass Composites Fiber Reinforced Plastics (FRP) Tungsten Carbide |
| Shape | Designation | D1 [mm] | D2 [mm] | S [mm] | R [mm] |
|---|---|---|---|---|---|
 | CCGW060202 | 6.5 | 2.8 | 2.38 | 0.2 |
| CCMW160616 | 15.875 | 6.35 | 6.35 | 1.6 | |
 | CCGW060202 | 6.5 | 2.8 | 2.38 | 0.2 |
| CCMW160616 | 15.875 | 6.35 | 6.35 | 1.6 | |
 | DNGA150604 | 12.7 | 5.16 | 6.35 | 0.4 |
| DNMA110412 | 9.525 | 3.18 | 4.76 | 1.2 | |
 | DNGA150604 | 12.7 | 5.16 | 6.35 | 0.4 |
| DNMA110412 | 9.525 | 3.18 | 4.76 | 1.2 | |
 | SCGW09T304 | 9.525 | 4.4 | 3.97 | 0.4 |
| SCMW120412 | 12.7 | 5.5 | 4.76 | 1.2 | |
 | SCGW09T304 | 9.525 | 4.4 | 3.97 | 0.4 |
| SCMW120412 | 12.7 | 5.5 | 4.76 | 1.2 | |
 | TPGN110304 | 6.35 | - | 3.18 | 0.4 |
| TPMN160308 | 9.525 | - | 3.18 | 0.8 | |
 | TPGN110304 | 6.35 | - | 3.18 | 0.4 |
| TPMN160308 | 9.525 | - | 3.18 | 0.8 | |
 | VBGW160402 | 9.525 | 4.4 | 4.76 | 0.2 |
| VBMW160412 | 9.525 | 4.4 | 4.76 | 1.2 | |
 | VBGW160402 | 9.525 | 4.4 | 4.76 | 0.2 |
| VBMW160412 | 9.525 | 4.4 | 4.76 | 1.2 | |
 | WCGW040202 | 9.525 | 3.4 | 3.97 | 0.2 |
| WCMT06T308 | 12.7 | 5.5 | 4.76 | 0.8 | |
 | WCGW040202 | 9.525 | 3.4 | 3.97 | 0.2 |
| WCMT06T308 | 12.7 | 5.5 | 4.76 | 0.8 |
Precision Hard Turning for Less
Get the grinding-quality finish you need at a price that makes sense. Switch to Sundi CBN Tipped Inserts for reliable, cost-effective hard turning.
FAQ
Most frequent questions and answers
A: It comes down to Depth of Cut (DOC) and Application.
Tipped CBN: Has a small corner of CBN. Best for Finishing and high precision. Lower cost.
Full Edge CBN: Has CBN along the entire side. Best for Roughing and removing heavy scale. Higher cost but tougher.
A: Yes. However, the edge preparation (T-land) must be correct. For interrupted cuts (like turning over gear teeth), we recommend a “Heavy” edge prep grade. For smooth continuous cuts, a “Light” edge prep provides a better surface finish.