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DISCO HOME > Product Information > Dry Polishing Wheels

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For Your Safety - Rotation Speed Limit
When blades and wheels (precision processing tooling) rotate at too high a rate when idling during equipment setup, there is a risk that they may break, thus causing injury and damage to the equipment. Please follow the speed limit inscribed on the precision processing tooling to avoid such instances.
* Rotation Speed Limit
- A rotation upper speed limit for precision processing tooling during idling when setting up the equipment.
- This safety speed limit was set based on measurements that determined the rotation rate at which products are at risk of breakage.
Rotation Speed Limit Inscribing
Please confirm the rotation limit, which is inscribed on each product, and is also writton the the packaging.
Examples of product inscriptions
Hub blades Hubless blades Grinding wheels
Hub blades Hubless blades Grinding wheels
* Example) In case of a 40,000 min-1 rotation speed limit, Limit 40,000 min-1 is inscribed.
* Inscribing is performed by the same method and at the same position as indicating the specification; therefore, there is no effect at the processing point.
Example of the package label inscriptions
* The inclusion of a warning on the packaging requires us to increase the number of labels on packaging, or to increase the size of the labels.
Implementation of Inscriptions
Inscriptions will appear on lots produced from June 2011. They will be delivered as soon as stocks of present blades run out.
Video of Blade Breakage Due to High Rotation Speed
This video shows blade breakage caused by rotating over the speed limit during equipment idling.
* The wheel cover was removed for the purpose of recording this video.
* This video was edited in parts to speed up playback time.
When Using with a Speed over the Rotation Limit
If the currently used processing parameters exceed the rotation speed limit, please contact DISCO sales representative. We will check the safety.

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