To surely recover waste materials, such as chips, and to separate and recollect these waste materials by respective kinds by disposing a deburring device, a sprue cutting device and waste material conveyors for ejecting the chips, cut pieces and molding sand respectively discharged below a handling device to the waste material separating and integrating equipment.

The chips C and cut pieces D formed by processing in the deburring device 1b and the sprue cutting device 1c are respectively discharged from chutes 3b, 3d onto the waste material conveyor 8. The molding sand B, chips C, etc., adhered to a work 1e and the handling device 1d splash to the entire part of a post-casting finishing system 1. Since the system is installed on a grating-shaped floor plate 2, the molding sand B and the chips c pass the grating-shaped floor plate 2 and are discharged onto the waste material conveyor 8 via an under-the-floor chute 7. The molding sand B, the chips C and the cut pieces D are transported to the waste material separating and recollecting device 9 and are collected respectively into a molding sand recovering can 24, a chip recovering can 25 and cut piece recovering can 26.