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Hydraulic chuck, slim Master Chuck, form AD, BT 30 A = 85, Clamping ⌀D1: 20mm
Article no.: 2018973
Catalog no.: 303435
Article code:
Product details
Technical Data
| Through-coolant | yes | |
| 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 shape | MAS BT | |
| Holder version | dimensionless nominal size without cooling | |
| Holder size, no dimensions | 30 | |
| Type of mounting | hole (internal mounting) | |
| Shank length | 85 mm | |
| Interface on machine side | BT 30 | |
| With flat surface contact | yes | |
| Gauge length | 85 mm | |
| External diameter, tool-end | 33 mm | |
| Min. tool clamping length | 44 mm | |
| Max. speed | 40,000 min-1 | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HPC; HSC | |
| Format | slim | |
| Incl. length adjustment screw | yes | |
| Adjustment travel | 10 mm | |
| Interface | joint 1; joint 2 | |
| Type of product | hydraulic chuck | |
| Overall length | 133.4 mm | |
| Overall height | 42 mm | |
| Overall width | 42 mm | |
| Standard | ISO 7388-2; JIS B6339 | |
| Shape | AD | |
| With hole for RFID data carrier | yes | |
| Through-coolant available | yes | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 2018973 | |
| Catalog number | 303435 | |
| EAN / GTIN | 4067263265238 | |
| Manufacturer number | 303435 20 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- Slim design (4.5° contour, 1 to 1 shrinking contour according to DIN 69882-8).
- Axial length adjustment, adjustment travel 10 mm.
- Reducing adapters can be used.
- Temperature resistant up to 120 °C for 4 hours.
- Up to 10× more clamping operations possible compared to a standard hydraulic chuck.
- Very low tightening torque of the clamping screw – easy handling.
- Patented new hydraulic clamping system – reliable, durable premium concentricity.
Application:
Especially for tool and mould making.
Wherever reduced interference contours are required.
For drilling, reaming and milling.
For clamping tools with shank tolerance h6.
Wherever reduced interference contours are required.
For drilling, reaming and milling.
For clamping tools with shank tolerance h6.
Optional extras:
Pull studs (AB) No. 308600 − 308802, AB pull stud wrenches No. 308820 / 308835, Reducing sleeves No. 302135 − 302187.
Warning:
Intended use
Reasonably foreseeable misuse
- Hydraulic chuck for clamping rotationally symmetrical tools.
- For work in industrial environments.
- Observe minimum clamping depth.
- If using custom designs, observe the specifications in the applicable drawings.
- Observe the maximum operating speed and if necessary
- adjust it to suit individual circumstances.
Reasonably foreseeable misuse
- Do not use in explosion hazard areas.
- Not for use in areas where high concentrations of dust, flammable gases, vapours or solvents are present.
- Do not combine extensions.
- Not to be used for workpiece clamping.
- Do not heat with a shrink-fit unit.