The equipment is mainly used for separating core and pulp of drupe fruits, such as olive, greengage, plum, apricot and peach etc. Through the separating boards of different angles on the rotor, the block pulp of fruit will be achieved, and it will drop into the material discharging hopper from the sieve mesh. The stone will be discharged towards the stone exit through the spiral formed by numerous separating boards. The clearance between the sieve and separating board shall depend on the size of stone.