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Manufacturer number:
ER collet holder cylindrical, for ER collet size: 20
Article no.: 300683 20
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- Balance quality G at rotational speed: G 2.5 at 25,000 rpm
- Concentricity: ≤ 3
- Machining strategy: HSC
- Through-coolant: yes
Product details
Technical Data
| for ER collets | 20 | |
| Shank ⌀ d | 25 mm | |
| Balance quality G at rotational speed | G 2.5 at 25,000 rpm | |
| Concentricity | ≤ 3 µm | |
| Machining strategy | HSC | |
| Through-coolant | yes | |
| Clamping range | 1 mm - 13 mm | |
| External ⌀ D | 34 mm | |
| Shank length L1 | 85.5 mm | |
| L2 | 19.5 mm | |
| Type of product | Collet chuck |
Identification & Classification
| Article number |
300683 20
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| EAN / GTIN |
4045197944245
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| Manufacturer number |
300683 20
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| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
Cylindrical holder with Weldon shank and 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. 309680 − 309740.
Clamping wrenches No. 309680 − 309740.
Note:
Not suitable for shrink processes.