Simon Nann GmbH & Co. KG (EN) > Products > Catalog of standard clamping tools > Workpiece clamping collet chucks > Type KSKF power-operated collet chucks

Type KSKF power-operated collet chucks

The innovative collet chucks feature short
changeover times from external to internal
clamping and high degrees of precision and
rigidity.

  • for workpiece clamping of bar and chucking works
  • highest clamping forces and rigidity (types KSKF, KSKF-A)
  • axially fixed clamping head, less rigidity (type KSKF-AF)
  • an intermediate flange is required for all collet chucks type KSKF. Flanges are available in various dimensions and for a variety of spindle noses
  • all collet chucks type KSKF are designed in a way that a segment clamping mandrel can be bolt on via the bores at the face end without major modifications of the chuck
  • quick change capability of clamping heads

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collet chuck type KSKF, drawback collet chuck with through-hole

art. no. clamping range L1 L2 D1 D2 D3 D4 D5 D6 max. speed min-1 collet
KSKF 32 4 - 32 70,5 17 137 120 84 70 M8 M54 x 1,5 8.000 771 E, 772 E
KSKF 42 4 - 42 69 17 137 138 104 90 M8 M54 x 1,5 7.000 781 E, 782 E
KSKF 52 4 - 52 72,5 17 155 156 106 92 M8 M74 x 1,5 6.500 783 E
KSKF 65 5 - 65 78 17 155 156 122 110 M8 M74 x 1,5 6.000 787 E, 788 E

Drawback collet chuck with through-hole for bar machining: the clamping head is pulled into the chuck during clamping and provides high clamping forces and high rigidity. The collet chucks work very precisely and feature an easy set-up as well as high running accuracy.

 

collet chuck type KSKF-A, drawback collet chuck with rigid axial stop

art. no. clamping range L1 L2 D1 D2 D3 D4 D5 D6 max. speed min-1 collet
KSKF 32-A 4 - 32 70,5 30,5 137 120 84 70 M8 M54 x 1,5 8.000 771 E, 772 E
KSKF 42-A 4 - 42 82,5 17 137 138 104 90 M8 M54 x 1,5 7.000 781 E, 782 E
KSKF 52-A 4 - 52 89 17 155 156 106 92 M8 M74 x 1,5 6.500 783 E
KSKF 65-A 5 - 65 94,5 17 155 156 122 110 M8 M74 x 1,5 6.000 787 E, 788 E

Same as type KSKF, but with an additional stop for chuck parts which can be screwed on: the clamping head offers high clamping forces and high rigidity as well. Due to the axial pulling effect, the workpiece is pulled against the stop and provides an additional workpiece support. Therefore, the type KSKF-A is perfect with short clamped workpieces.

 

collet chuck type KSKF-AF, fixed clamping head

art. no. clamping range L1 L2 D1 D2 D3 D4 D5 D6 max. speed min-1 collet
KSKF 32-AF 4 - 32 80,5 15,5 137 137 105 94 M6 M48 x 1,5 8.000 771 E, 772 E
KSKF 42-AF 4 - 42 81 16 137 137 137 120 M8 M54 x 1,5 7.000 781 E, 782 E
KSKF 52-AF 4 - 52 92,5 17 155 155 155 138 M8 M74 x 1,5 6.500 783 E
KSKF 65-AF 5 - 65 92,5 17 155 155 155 138 M8 M74 x 1,5 6.000 787 E, 788 E

Type KSKF-AF is equipped with a fixed clamping head and can be used for through as well as for stop clamping. The pressure sleeve is pushed over the axially fixed clamping head. Type KSKF-AF offers a lesser stiffness than that achieved with types KSKF and KSKF-A.

Intermediate flanges

The intermediate flanges match the collet chuck types KSKF, KSKF-A und KSKF-AF. Explanation first column: Z-140 means cylindrical mount with diameter 140; A-5 means spindle nose with short taper mount size 5 and so on.

 

intermediate flanges

art. no. L1 L2 L3 D1 D2 D3 D4 D5 fastening screw
KSKF 32/42 - Z-140 35,5 6 10 149 140 150 137 104,8 6 x M8
KSKF 32/42 - A-5 44,5 15 10 149 82,563 150 137 104,8 6 x M10
KSKF 32/42 - A-6 45,5 16 10 164 106,375 165 137 133,4 3 x M12
KSKF 52/65 - Z-140 27,5 6 10 167 140 168 155 104,8 6 x M10
KSKF 52/65 - Z-170 32,5 6 10 179 170 180 155 133,4 6 x M12
KSKF 52/65 - A-5 46 15 10 167 82,563 168 155 104,8 6 x M10
KSKF 52/65 - A-6 45,5 16 10 167 106,375 168 155 133,4 3 x M12
KSKF 52/65 - A-8 52 18 10 209 139,719 210 155 171,4 3 x M16