A cutting apparatus for ductile materials comprises a nozzle having a
number of outlet openings separated from each other by separator webs.
Next to the nozzle, a rotating cutting tool is provided, having a
plurality of cutting knives for cutting off the strands of material
discharged through the outlet openings of the nozzle. Each separator web
is at least as wide as a cutting knife. For performing a cutting
operation, the cutting tool is intermittently rotated. Between two
cutting operations, the cutting tool is stopped, whereby its knives
remain in a rest position behind the separator webs. For the next cutting
operation, the cutting tool is rotated by such an amount that its cutting
knives move from a position behind a first separator web to the next
adjacent separator web.