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Hydraulic chuck short, version HT, SK 40, Clamping range ⌀ D1: 12mm
Article no.: 302028 12
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 | |
| Holder type | ISO taper | |
| Holder version | dimensionless nominal size with cooling | |
| Holder size, no dimensions | 40 | |
| Type of mounting | spigot | |
| Interface on machine side | SK 40 | |
| Min. clamping diameter | 12 mm | |
| Max. clamping diameter | 12 mm | |
| Gauge length | 50 mm | |
| External diameter, tool-end | 42 mm | |
| Min. tool clamping length | 31 mm | |
| Max. tool clamping length | 31 mm | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HPC; HSC | |
| Format | short | |
| Vibration damping | yes | |
| Tool pull-out protection | no | |
| Pendular compensation | no | |
| Incl. length adjustment screw | yes | |
| Adjustment travel | 10 mm | |
| Tightening torque | 550 Nm | |
| Interface | joint 1; joint 2 | |
| Type of product | hydraulic chuck | |
| Overall length | 118.4 mm | |
| Overall height | 42 mm | |
| Overall width | 42 mm | |
| Standard | ISO 7388-1 | |
| Shape | ADB | |
| With hole for RFID data carrier | yes | |
| Through-coolant available | yes | |
| Material | heat-treatable steel | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 302028 12 | |
| EAN / GTIN | 4045197586933 | |
| Manufacturer number | 302028 12 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- Very high total rigidity due to optimised design.
- With RFID/Balluffchip bore.
- Axial length adjustment (adjustment 10 mm) available.
- Flexible due to use of reducing sleeves.
Application:
- For drilling, reaming and for light and heavy-duty machining when milling.
- Maximum transmissible torque 550 Nm, version HT (High Torque).
- Ideal damping characteristics, resulting in optimum surface finishes, increased tool life and spindle protection.
Optional extras:
Pull studs (PS) No. 308600 − 308806, PS wrenches No. 308820 – 308835, Reducing adapters No. 302135 − 302187.
Note:
V = Maximum adjustment range!
Caution in the case of extra-long tools and TPC machining.
Caution in the case of extra-long tools and TPC machining.