Italiano 
English Diatool – Adjustable modular crowns for boring
When boring requirements meet the need to machineparticularly large diameters, the most effective and economic solution is the use of Boring adjustable crowns. Sharp crowns allow the machining especially of medium and large bores with tolerances of less than IT7. Adjustment is simple and reliable, allowing the dimensional optimization of the machining to be performed. The crowns are provided or regenerated very quickly and, thanks to the expansion system, prolong their life up to 6 times compared to an integral alternative. The expansion process is extremely simple and rapid and allowscompensating for the decrease of the diameter due to wear of the cutters.
The ease of measurement of the sharp crowns allows having a reduced presetting time and control of the cutters. The possible combinations with different crown holder mandrels complete the picture. The Diatool modular multi-sharp device is characterized by easy availability of dimensions on the adapters.
The features include:
Features Adjustable modular crowns for boring:
- Modular crowns from Ø50.600 to Ø150.599 mm
- Fixed and adjustable boring crowns
- Crowns for boring with left and straight cuts
- Different materials and coatings
- Simple and precise crown interchangeability
- Crown holder with internal cooling
- Support for crowns in short and long versions
Advantages Adjustable modular crowns for boring:
- Only 12 crown holders to cover diameter range 50.600 – 150.599 mm
- All integral or assembled crowns are manufactured at the nominal diameter, thus the first hole will already be perfect
- Short machining cycle times due to high advancement and multi-cutting design
- Compensation of wear through the simple expansion device
- High economic efficiency thanks to repeated regenerations
- Regenerated crowns have identical tool life compared to new crowns
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