Work Piece Clamping Solutions
Nann Workpiece Clamping Collets - Emergency Collets
Emergency collets are used for holding smaller series workpieces when no standard collet is available. Unlike the standard collet, with its hardened taper and clamping bore, emergency collets only have a hardness of approx. HRc 45. The customer can therefore enlarge the bore of the collet.
To enlarge the bore, the emergency collet is clamped on a bolt in the rear of the clamping bore or on pins in the slots and turned out in this position.
Note: The centrifugal force resulting at high speeds can lead to a lessening of the clamping power and, in extreme case, breaking of the collets. Please follow accident-prevention instructions.
Deadlength collets (pic. 1) with a hardness of HRc 45 are available for collet types 140 E, 148 E, 161 E, 163 E, 173 E and 185 E, further types on request.
|140 E - 0.0||1||22||30||55||15|
|148 E - 0.0||1||28||38||70||15|
|161 E - 0.0||1||32||45||75||15|
|163 E - 0.0||1||35||48||80||15|
|173 E - 0.0||1||48||60||94||15|
|185 E - 0.0||1||66||84||110||15|
Deadlength collets (pic. 1), short version: see standard collets.
Deadlength collets (pic. 2), enlarged and extended versions: these deadlength collets are able to clamp large and short workpieces.
Draw-back collets with a hardness of HRc 45 are available for collet types 349 E, 358 E, 369 E, 363 E, 364 E, 366 E, 367 E, 385 E and 386 E with various head sizes.