The fruit is filled into the feeding funnel manually or with a Kreuzmayr washing elevator (KWE 1000 or 3000). Via the driven intake screw or the two metered addition screws (KEP 1500) the fruit is continuously conveyed into the rotor chamber. The specially aligned rotor blades hurl the fruit against the internal wall of the sieve, while an ideal conversation of the cores is guaranteed. The flesh of the fruit is pressed against the holes of the sieve. The core remains in the rotor chamber and is tangentially discharged at the rear end wall of the machine, after all fruit flesh has been removed thoroughly.