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Shrink-fit chuck Form AD, BT 40 A = 120, Clamping ⌀ D1: 6mm
Article no.: 303860 6
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 | |
| Interface coding | SKG04005195 | |
| 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 | 120 mm | |
| Interface on machine side | BT 40 | |
| With flat surface contact | yes | |
| Distance a | 1 mm | |
| Min. clamping diameter | 6 mm | |
| Max. clamping diameter | 6 mm | |
| Gauge length | 120 mm | |
| External diameter, tool-end | 27 mm | |
| Body length (tool side) | 38.1 mm | |
| Min. tool clamping length | 36 mm | |
| Max. tool clamping length | 36 mm | |
| Max. speed | 25,000 min-1 | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HPC; HSC | |
| Vibration damping | no | |
| Tool pull-out protection | no | |
| Pendular compensation | no | |
| Incl. length adjustment screw | yes | |
| Adjustment travel | 10 mm | |
| Incl. RFID data carrier | no | |
| Interface | joint 1; joint 2 | |
| Type of product | shrink-fit chuck | |
| Overall length | 185.4 mm | |
| Overall height | 185.4 mm | |
| Overall width | 185.4 mm | |
| Standard | ISO 7388-2; JIS B6339 | |
| Shape | AD | |
| With hole for RFID data carrier | yes | |
| Through-coolant available | yes | |
| Material | heat-treatable steel | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 303860 6 | |
| EAN / GTIN | 4067263014065 | |
| Manufacturer number | 303860 6 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- High-temperature steel.
- Integral tool length adjustment, adjustment track 10 mm.
- Suitable for shrink fitting of HSS and carbide tools.
- All shanks hard turned (for smooth running!).
- With RFID/Balluffchip bore.
Advantage:
The double contact between the taper and the flat flange creates a more stable and precise clamping situation:
- Better surface quality
- Longer tool life times
- Consistent seating in the headstock (even at high speeds)
- Smaller radial run-out
Application:
For clamping tools with parallel shank to h6 tolerance.
Standard:
Similar to E-DIN 69882-8, form G.