 | CoroBore® 820 XL
As a complete solution of boring tools, CoroBore XL enables rough boring to be completed with high productivity. The system gives more rigid and reliable performance in larger bores, and is designed to generate the required hole quality and diameter, time and again.
- Rough and semi-finishing tool with rigid tool design for reliability and productivity
- Typical components: Large housings, casings and frames in cast iron or steel
- Rough boring for diameter range 298 - 780 mm (11.732 – 30.708 inch)
- Semi-finishing for diameter range 298 - 1260 mm (11.732 – 49.605 inch)
View the CoroBore XL video |
Application areas
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Twin-edge boring | Step boring | Single-edge boring |
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| T-Max® P
CoroTurn® RC Rigid clamping
For applications that require strong inserts in stable conditions |
| CoroTurn 107
screw clamping system
For applications that require lower cutting forces |
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- Setting screw on slides, scale markings and central pin for easy adjustment
- Rigid and compact cartridges for CoroTurn® 107 screw clamping system and CoroTurn® RC rigid clamping system
- Axially adjustable cartridges to adjust one insert axially for step boring or adjust the two inserts to the same axial position
- Stop plate set available for quick and easy change from finishing to roughing slide with retained slide position
- Internal coolant to the cutting edge
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Optimized tool holders
Dedicated tool holders provide extra stability for large diameter boring.
- Large support areas for highest stability
- Internal coolant through centre and flange
- Possible to rotate bridge 90° for added flexibility
- Ground backside of flange with threads makes it possible to mount shim, to create face contact and stability
Tool holders available as standard for the following machine interfaces:
- Coromant Capto C8-C10
- ISO 7388.1 size 50
- MAS/BT size 50
- CAT/V size 50
Centering plugs available for direct mounting of bridge on spindle to increase face contact and stability for large diameters. | |
 | Bridges and bridge extensions
CoroBore XL includes six bridges to cover the complete diameter range for finishing and roughing.
- High strength aluminium offers rigidity and light weight for easy handling
- Large cross section for rigidity and strength
- Hard coating for added durability
- Bridge extensions for diameters over 538 mm (21.18 inch) provide large diameter flexibility and reduce the need for extra tooling stock
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