{{ name }}
Article no. {{ combinedCodeWithHighlight }}
Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
ER collet chuck, ultra-short, SK 40, for ER collet size: 25
Article no.: 702389
Catalog no.: 300445
Article code:
Product details
Technical Data
| Entry of cooling lubricant | with cooling lubricant entry, axially concentric | |
| Escape of cooling lubricant | with cooling lubricant exit, axially concentric | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | ER-Spannzangenfutter ultrakurz, SK 40, für ER-Spannzangen-Größe: 25 | |
| Holder type | iSO taper | |
| Interface coding | SKG04001115 | |
| Holder shape | steep taper DIN ISO 7388-1 | |
| Holder version | dimensionless nominal size without cooling | |
| Holder size, no dimensions | 40 | |
| Type of mounting | hole (internal mounting) | |
| Shank length LS | 63.55 mm | |
| Interface on machine side | SK 40 | |
| Min. clamping diameter D1 | 1 mm | |
| Max. clamping diameter D1 | 16 mm | |
| For collet type | ER collet | |
| Collet size | 25 | |
| Gauge length A | 25 mm | |
| External diameter, tool-end D | 32 mm | |
| External diameter of clamping nut D | 40.6 mm | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HSC | |
| Format | ultra-short | |
| Width across flats SW | 24 mm | |
| With cooling channel bore | yes | |
| Interface | joint 1; joint 2 | |
| Type of product | collet chucks | |
| Overall length L | 93.4 mm | |
| Overall height H1 | 93.4 mm | |
| Overall width B1 | 40.6 mm | |
| Standard | DIN 6499; ISO 7388-1 | |
| Shape | AD | |
| With width across flats | yes | |
| With thread | no | |
| Through-coolant available | yes | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 702389 | |
| Catalog number | 300445 | |
| EAN / GTIN | 4062406114374 | |
| Manufacturer number | 300445 25 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
Taper ground internally and externally. Ultra-short type with internal precision clamping nut. Best suited to working in restricted working areas, with higher stability.
Application:
For clamping tools with parallel shank in collets to DIN 6499 Form A and B.
Supplied with:
ER clamping nut (internal).
Optional extras:
ER collets No. 308941 − 309448, Pull studs (PS) No. 308600 − 308806, PS wrenches No. 308820 – 308835.
Note:
Matching clamping nut No. 309621.