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Manufacturer number:
Cat. No.:
Shrink-fit chuck extension 4.5° without length adjustment screw, L = 300 mm, ⌀ d / ⌀ D1: 20/6mm
Article no.: 452555
Catalog no.: 302416
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 | plain shank; plain shank | |
| Holder version | metric with cooling lubricant holes; metric with cooling lubricant holes | |
| Holder size, metric | 20 mm; 6 mm | |
| Type of mounting | spigot; hole (internal mounting) | |
| Shank diameter DS | 20 mm; 6 mm | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | Schrumpffutter-Verlängerung 4,5° ohne Längeneinstellschraube | |
| Interface on machine side | shank diameter = 20 mm | |
| Min. clamping diameter D1 | 6 mm | |
| Max. clamping diameter D1 | 6 mm | |
| Hole diameter on workpiece side D1 | 6 mm | |
| External diameter, on the tool side D | 14 mm | |
| Taper angle | 4.5 degrees | |
| Max. speed | 8’000 min-1 | |
| Format | long | |
| Including length adjustment screw | no | |
| With cooling channel bore | yes | |
| Interface | joint 1; joint 2 | |
| Type of product | toolholder extension | |
| Overall length L | 300 mm | |
| Through-coolant available | yes | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 452555 | |
| Catalog number | 302416 | |
| EAN / GTIN | 4045197436078 | |
| Manufacturer number | 302416 20/6 | |
| Article class | 31A | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
Bored through for internal coolant supply (IC).
Without length adjustment screw, long.
Without length adjustment screw, long.
Application:
For use in shrink-fit chucks, hydraulic chucks, and ER collet chucks.
Note:
Maximum permissible speed 8,000 rpm.