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Shrink-fit chuck Form AD, BT 40 A = 120, Clamping ⌀ D1: 12mm
Article no.: 303860 12
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 | |
| Interface position | on the machine; on the workpiece | |
| Holder type | ISO taper; plain shank | |
| Interface coding | SKG04005195; ZYL01200115 | |
| Holder shape | MAS BT; plain shank | |
| Holder version | dimensionless nominal size with cooling; metric | |
| Holder size, metric | 12 mm | |
| Holder size, no dimensions | 40 | |
| Type of mounting | spigot; hole (internal mounting) | |
| Holder tolerance class | h6 | |
| Shank diameter DS | 12 mm | |
| Length of shank LS | 65.4 mm; 47 mm | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | Schrumpffutter Form AD, BT 40 A = 120 | |
| Interface on machine side | BT 40 | |
| With flat surface contact | yes | |
| Distance a | 1 mm | |
| Interface on workpiece side | plain shank | |
| Min. clamping diameter D1 | 12 mm | |
| Max. clamping diameter D1 | 12 mm | |
| Gauge length A | 120 mm | |
| External diameter, on the tool side D | 32 mm | |
| Taper angle | 4.5 degrees | |
| 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 | |
| Including length adjustment screw | yes | |
| Adjustment travel V | 10 mm | |
| Thread G; M | M16 | |
| Diameter outer 2 on the tool side D2 | 24 mm | |
| Interface | joint 1; joint 2 | |
| Type of product | shrink-fit chuck | |
| Overall length L | 185.4 mm | |
| Standard | DIN 69882-8; ISO 7388-2; JIS B6339 | |
| Shape | AD | |
| With thread | yes | |
| With hole for RFID data carrier | yes | |
| Through-coolant available | yes | |
| Material | steel | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 303860 12 | |
| EAN / GTIN | 4067263014096 | |
| Manufacturer number | 303860 12 | |
| 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.