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Cat. No.:
Revolving lathe centre with pressure indicator and extended point, Morse taper: 3
Article no.: 321780 3
Article code:
Product details
Technical Data
| Overall length | 205 mm | |
| Head diameter | 66 mm | |
| Type of centring point | tracking | |
| Point angle | 30 degrees; 60 degrees | |
| Largest point diameter | 28 mm | |
| Bull-nosed taper at front | no | |
| Mounting machine-side | MK3 | |
| With push-off thread | no | |
| With clamping faces | no | |
| With carbide tip | no | |
| With shock absorbing | yes | |
| Usable length | 43.5 mm | |
| Half centring point | no | |
| Replaceable centring points included | no | |
| With pressure indicator | yes | |
| Use | turning | |
| Weight | 1.9 kg | |
| Type of product | centring drill |
Identification & Classification
| Article number | 321780 3 | |
| EAN / GTIN | 4069515008396 | |
| Manufacturer number | 321780 3 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- The pressure (clamping force) to be adjusted can be read off in kN directly on the manometer sight glass.
- Short sturdy design with active longitudinal axis. Tool is through hardened and finish ground.
- Precision bearing for high axial loads and high concentricity.
- With special seal against dirt and coolant ingress, maintenance-free due to lifetime lubrication.
- Length adjustment by means of spring package.
With extended centre, point angle 60° / 30°.
Application:
Whenever the clamping pressure has to be kept within certain limits, either to prevent deformation of the component or to ensure secure clamping with sufficient pressure.
- As a tailstock centre in conjunction with face drivers No. 327400 − 327403, 327455 – 327465 because the drive teeth have to dig into the component.
- For components that expand significantly due to high machining heat.
- For clamping long slender components to prevent lateral displacement.
- For clamping heavy components where a controlled clamping force is required.