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Revolving lathe centre with pressure indicator and extended point, Morse taper: 4
Article no.: 321780 4
Article code:
Product details
Technical Data
| Morse taper | MK4 | |
| Body ⌀ D | 72 mm | |
| Reach B | 140 mm | |
| largest centre point ⌀ 60° A | 16 mm | |
| largest centre point ⌀ 30° A | 35 mm | |
| maximum radial run-out | 0.01 mm | |
| Centre point length C | 53 mm | |
| for workpiece weight | 600 kg | |
| maximum axial clamping force | 1,000 daN | |
| Sprung travel | 1.7 mm | |
| Type of product | Centre |
Identification & Classification
| Article number | 321780 4 | |
| EAN / GTIN | 4069515008402 | |
| Manufacturer number | 321780 4 | |
| 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.