AS Type

Accuracy Adjustable Self-Centring Chucks

Three-jaw accuracy-adjustable self-centring chuck with serrated jaws.

AS type chucks are specified when runout has to be dialled in on the machine — finishing operations, precision bores, and work that cannot tolerate the stack-up of a standard scroll chuck. The adjustment is built into the chuck, not improvised at the fixture.

  • SeriesAS Type
  • Size range80 mm to 315 mm
  • Configuration3 or 6 jaws
  • PricingBy quote. We’ll beat a competitor price on the same spec.

Body

High-tensile semi-steel body, ground ways.

Jaws

Hardened, ground gripping surfaces.

Mechanism

Accuracy adjustment for concentricity on the spindle.

Service

Interchangeable wearing parts.

Features

  • Adjustable concentricity for finishing work.
  • Self-centring scroll with hardened ways.
  • Available as AS3 and AS6.
  • Compact envelope from 80 mm nominal size.

Dimensional data

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AS type chuck dimensions in millimetres. Approximate weights in kilograms.
Nominal size d1d2d3d5h1h2DLKK1L1L2L3Wt AS3Wt AS6
805667161614324M6M596622
1007083202018424M6M696933
12595108333322484M8M69993.83.8
160125140424229655M8M612121277
200160176555536786M10M82412.512.51719
250200224707036978M12M103213143034
31526028686863612010M12M103614145053

Taken from the series datasheet. Confirm spindle nose, bore, and jaws on the quote. The PDF drawing governs.