Quick-Change Collet Chuck Doubles as Mandrel
The hybrid Comot-AZ quick-change collet chuck from SMW Autoblok can be used for OD machining and can be transformed into an expanding mandrel for ID clamping using the EMX series.
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SMW Autoblok’s hybrid Comot-AZ quick-change collet chuck features industry-standard diameter capacities of 42, 65 and 100 mm to accommodate a variety of workpiece sizes. The company says it is well-suited for bar and tubular stock machining that requires multiple changeovers daily.
The Comot-AZ can be used in three ways: for OD machining using standard collets; for greater accuracy using high-precision collets with Comot-AZ/PA; or as an expanding mandrel for ID clamping using the EMX series.
The chuck can be used for hard turning, gear grinding, drilling, milling and more. It provides low-deformation clamping of thin-walled workpieces and offers a selection of standard collets available in round, square, hexagonal and special configurations as needed.
The optional Comot-AZ/PA is said to enable users to change from a standard collet to a high-precision collet for holding workpieces from 3 to 100 mm with accuracy and repeatability. The EMX series extension mandrel is also available for internal workpiece fixturing.
For automated loading, Comot-AZ provides air sensing to ensure that the part is seated properly before the machine cycle starts. Other advantages include radial fine adjustment and a case-hardened body as well as internal parts for high resistance and long life.
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