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Manufacturer number:
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ER mini collet holder cylindrical, for ER collet size: 8
Article no.: 300684 8
Article code:
- Through-coolant: yes
- Balance quality G at rotational speed: G 2.5 at 25,000 rpm
- Concentricity: ≤ 3
- Machining strategy: HSC
Product details
Technical Data
| for ER collets | 8 mm | |
| Through-coolant | yes | |
| Balance quality G at rotational speed | G 2.5 at 25,000 rpm | |
| Concentricity | ≤ 3 µm | |
| Machining strategy | HSC | |
| Clamping range | 0.5 mm - 5 mm | |
| External ⌀ D | 12 mm | |
| Shank ⌀ d | 12 mm | |
| Shank length L1 | 70 mm | |
| L2 | 15.6 mm | |
| Type of product | Collet chuck |
Identification & Classification
| Article number | 300684 8 | |
| EAN / GTIN | 4045197700810 | |
| Manufacturer number | 300684 8 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
Cylindrical holder with ER nut.
Through hole for internal cooling provided.
Through hole for internal cooling provided.
Application:
For extending the reach of side lock arbors or collet chucks.
Optional extras:
ER collets No. 308878 − 309434, Spare ER nuts No. 309580; 309650.
Clamping wrenches No. 309740 and No. 309745.
Clamping wrenches No. 309740 and No. 309745.
Note:
Not suitable for shrink processes.
No length adjustment available.