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forkshaped head

Term for a series of 5-axis-spindles in CNC- machining centres.


Fork heads own a C-axis as well as another axis of rotation, hung up double-sided on the main spindle.

The technically correct synonym were in fact Kardankopf, as the suspension is similar to a kardan joint but this term has pushed through for a hung up milling spindle.

Once in a while this term 'one-sided hung up fork head', but this seems pointless as the double-sided mounting has been the the distinctive feature of other heads.


Construction wise fork heads are always more difficult than comparably one-sidedly hung heads. The dynamics is therefore lower. The space requirement is significantly higher, which is why the processing area is limited.

See also:


5-Achs-Spindel, Gabelkopf für robuste Zerspanung
Gabel-Revolverkopf auf Clipper
PADE, 2006
Gängige Anordnung der Drehachsen
PADE, 2006
Cardan joint