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Manufacturer number:
Cat. No.:
ER collet holder cylindrical, for ER collet size: 20
Article no.: 672001
Catalog no.: 300683
Article code:
Product details
Technical Data
| Through-coolant | yes | |
| Entry of cooling lubricant | without cooling lubricant entry | |
| Escape of cooling lubricant | without cooling lubricant exit | |
| Cooling lubricant | yes | |
| Holder type | plain shank | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 0250 mm | |
| Type of mounting | spigot | |
| Shank diameter | 25 mm | |
| Shank length | 60 mm | |
| Interface on machine side | plain shank; shank diameter = 25 mm | |
| Min. clamping diameter | 1 mm | |
| Max. clamping diameter | 13 mm | |
| For collet type | ER collet | |
| Collet size | 20 | |
| Gauge length | 40 mm | |
| External diameter of clamping nut | 34 mm | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HSC | |
| With cooling channel bore | yes | |
| Interface | joint 1; joint 2 | |
| Type of product | collet chucks | |
| Overall length | 105 mm | |
| Overall height | 34 mm | |
| Overall width | 34 mm | |
| Standard | DIN 6499 | |
| Through-coolant available | yes | |
| Material | heat-treatable steel | |
| Weight | 0.268 kg | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 672001 | |
| Catalog number | 300683 | |
| EAN / GTIN | 4045197944245 | |
| Manufacturer number | 300683 20 | |
| 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.