Abstract: A method and apparatus for feeding material intermittently discharged from one machine, primarily an injection molding machine, to another machine, primarily a granulator mill. The feeding-in operation offers low energy consumption, great flexibility as regards material particle size and discharge rate for the grinding material, as well as minimal hazard risk. A predetermined amount of material is collected in a receiving compartment whereafter the collected material amount is moved along a supply path into the granulator mill by means of one or more currents of driving gas which flow through the receiving compartment and are led off from the supply path before reaching the granulator mill itself. The driving gas which is discharged intermittently only during the actual feeding cycle also opens a pivotal flap disposed in the supply path and preventing goods being subjected to grinding from being flung out of the granulator mill.