Boring large-diameter holes and deep holes requires rigid assemblies, increasing total assembly weight substantially. This creates challenges when it comes to magazine limitations and tool handling.
®
The new CoroBore lightweight boring tools reduce tool weight and tool change moment, making handling easier and larger diameters possible.
Benefits
- Reduce your tool assembly weight and moment for easier and more secure tool handling and tool exchange
- Bore large diameters with increased stability without increase in tool weight
- Optimized solutions for horizontal boring machines and machining centres
Application
ISO application area:
Application overview
®
Three concepts within CoroBore Lightweight:
- Coromant Capto® coupling
- Diameter 69–167 mm (2.716–6.575 inch)
- Coromant Capto® coupling
- Diameter 150–300 mm (5.905–11.811 inch)
- Finishing
- 2. Finishing
- 3. Roughing and finishing
- Bridge with face mill interface
Long version |
Short version | ||
Ø 69–167 mm (2.716–6.575”) | Ø 150–300 mm (5.905–11.811”) | Ø 150–300 mm (5.905–11.811”) | |
Finishing | |||
Roughing | |||
Machining centres |
Horizontal boring machines with quill |
1. Integrated CB825 Long version Hollow body Aluminium head | 2. Integrated CB825 Long version Hollow body Aluminium head | 3. CB825 Short version Aluminium bridge & face mill interface |
3. CB820 Long version (with extension) Aluminium bridge & face mill interface | 3. CB820 Short version Aluminium bridge & face mill interface |
1. CoroBore 825L, integrated solution
- Diameter 69–167 (2.716–6.575 inch)
- Aluminium head and hollow steel body
- Total assembly length = CB825 fine boring tool + short extension
100 mm (3.937 inch) - Diameter precision adjustment of 2 microns
- Medium-sized machining centers with possibility to increase cutting data
Comparison example:
1. CoroBore 825L, integrated solution:
| CoroBore 825L, diameter 137 mm (5.39 inch), C6 |   | |
| Massive | Lightweight | |
| Tool assembly | 825-137TC11-C6 C6-391.01-63 100A | 825L-137TC11-C6 |
| Moment of gravity at the gripper slot, Nm (ft-lbs) | 4.5 (3.3) | 2.0 (1.5) |
| Weight, kg (lb) | 5.2 (11.5) | 2.9 (6.4) |
Savings: 55% reduced tool moment 45% reduced tool weight |
2. Dedicated finishing solution and 3.Combi-solution
2. CoroBore 825L XL/826L XL
| 3. CoroBore 820L XL
| |||
3. CoroBore 825L XL/826L XL
| 3. CoroBore 820L XL
|
Machining centre with lower tool change capability (HSK100, SK100) Coromant Capto® modular assembly to optimize the length |  |  |
Horizontal boring machine with quill Assemblies with short gauge line for lowest possible weight |  |  |
Comparison examples:
2. Finishing, long
| CoroBore 825L XL, Ø 265 mm (10.43 inch), SK50-C8 |   | |
| Solid | Lightweight | |
| Tool assembly | 825-265TC11-C8 C6-391.01-80 100A C8-390.140-50 120 | 825L-265TC11-C8 C8-390.140-50 120 |
| Tool length, mm (inch) | 350 (13.779) | 350 (13.779) |
| Moment of gravity at the gripper slot, Nm (ft-lbs) | 24.88 (18.35) | 14.57 (10.75) |
| Weight, kg (Lb) | 16.73 (36.88) | 12.09 (26.65) |
Savings: 41% reduced tool moment28% reduced tool weight |
3. Roughing, long
| CoroBore 820L XL, Ø 300 mm (11.81 inch), SK50-C8 |   |   |
| Solid | Lightweight | |
| Tool assembly | 820-300CN19-C8 C8-391.01-80 100A C8-390.140-50 120 | 820L-300CN19 C8-391.05-40 060M C8-391.01-80 100A C8-390.140-50 070 |
| Tool length, mm (inch) | 342 (13.46) | 332 (13.07) |
| Moment of gravity at the gripper slot, Nm (ft-lbs) | 30.16 (22.25) | 21.39 (15.78) |
| Weight, kg (Lb) | 18.73 (41.30) | 15.45 (34.06) |
| Savings: 29% reduced tool moment 18 % reduced tool weight |
3. Finishing, short
| CoroBore 825L XL, Ø 315 mm (10.43), C8 |   |   |
| Solid | Lightweight | |
| Tool assembly | 825-315TC11-C8 A1B05-50 40 050 | 825L-315TC11 A1B05-50 40 050 |
| Tool length, mm (inch) | 200 (7.87) | 160(6.30) |
| Moment of gravity at the gripper slot, Nm (ft-lbs) | 8,91 (6.57) | 3,08(2.27) |
| Weight, kg (Lb) | 12,42 (27.38) | 8,16(18.0) |
| Savings: 34% reduced tool weight 65 % reduced tool moment |
Product range
| 69-167 (2.72-6.57) | TC11 (TCMT221) | Finishing | C8 |
| 150-315 (5.9-12.4) | TC11 (TCMT221) | Finishing | C8 |
| 150-315 (5.9-12.4) | CN19, TC22, TC11 (CNMG643, TCMT432, TCMT221) | Roughing and finishing | Face mill adaptor 40S |
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