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Tapping chuck MLA IC 50 bar, Shank ⌀ 25 mm, Tapping range: M6-20
Article no.: 616721
Catalog no.: 338121
Article code:
Product details
Technical Data
| Through-coolant | yes, with max. 50 bar | |
| Coolant hole can be plugged | no | |
| Entry of cooling lubricant | with cooling lubricant entry, axially concentric | |
| Escape of cooling lubricant | with cooling lubricant exit, axially concentric | |
| 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 DS | 25 mm | |
| Shank length LS | 25 mm | |
| Interface on machine side | Plain shank | |
| Gauge length A | 56 mm | |
| External diameter, tool-end D | 60 mm | |
| Max. speed | 4’000 min-1 | |
| Length compensation by compression | 0.2 mm | |
| Length compensation by tension | 1 mm | |
| Concentricity | 3 µm | |
| Suitable for tapping | yes | |
| Minimum tap size D1 | M6 | |
| Maximum tap size D1 | M20 | |
| With cooling channel bore | yes | |
| Maximum coolant pressure | 50 bar | |
| Interface | joint 1; joint 2 | |
| Type of product | quick-change chuck | |
| Overall length L | 112 mm | |
| Overall height H1 | 60 mm | |
| Overall width B1 | 60 mm | |
| Through-coolant available | yes | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 616721 | |
| Catalog number | 338121 | |
| EAN / GTIN | 4045197801968 | |
| Manufacturer number | 338121 M6-20 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- With minimum length adjustment (MLA), by means of a damping element.
- Increases tool life of taps by up to 300 %.
- Internal coolant supply up to 50 bar.
- Secure clamping for ER collets in quick-change tapping collets.
- Run-out of shank taper to the tapping collet taper < 3 µm.
Application:
On machining centres with synchronised spindles.
- For compensating the difference in pitch between tap and synchronised spindle.
- For compensating the pitch tolerances of taps.
Optional extras:
ER collets, see No. 308881-309240 (size ER11 / 16 / 25). ER tapping collets with square drive spigot, see No. 309399 - 309413 (Size ER 11 /16 / 25).
See No. 308600 - 308806 for pull studs.
See No. 309880 for coolant feed pipes for HSK.
See No. 309890 for plug-in sockets for HSK.
Quick-change tapping collets and extensions, see No. 338120 – 338142.
See No. 308600 - 308806 for pull studs.
See No. 309880 for coolant feed pipes for HSK.
See No. 309890 for plug-in sockets for HSK.
Quick-change tapping collets and extensions, see No. 338120 – 338142.
Note:
Maximum speed 4000 rpm.