Stiefelmayer Clamping Technology

patentierte Lösung

Angle lever chuck with hydraulic compensation

Internal and external machining in one clamping chuck

The angle lever chuck is used when larger components need to be clamped with minimal distortion. It is possible to realise both internal and external clamping operations.

Problem Properties Workpieces
  • Clamping force adjustable over a wide range
  • High roundness requirement
  • Non-round clamping diameter
  • Reduce machining operations
  • Spanning larger clamping ø
  • Thin-walled components
  • Centric with hydraulic compensation
  • Compensation clamping
  • For high speed
  • For non-round clamping ø
  • For thin-walled parts
  • High centring accuracy
  • Number of jaws > 3
  • Cam adjustment
  • Disc
  • Flange
  • Gear wheel
  • Ring
  • Ring - Cone ring
  • Ring - Synchron ring
  • Ring gear

Technical features

  • Purely radial clamping movements
  • Centric clamping with hydraulic compensation
  • Large jaw stroke
  • High re-run accuracy even for large diameters
  • Integrated centrifugal force compensation
  • Chuck sizes from 250-2000 mm
  • Long slide jaws with dirt cover

Typical applications

  • Aluminium piston rings

    Cast aluminium is already very precise. Nevertheless, there are still areas that require mechanical machining – these can be finished in one single clamping operation using our chuck.

  • Finishing forged ring gears

    Example of thin-walled rings that are clamped on the forging contour with this clamping system and become round during machining.

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