PURPOSE: To surely separate a casting from a die by dividing plural ejector pins into two working groups, separating between the casting and a second working group by ejecting a first working group and next, executing ejection of the second working group and retreat of the first working group.

CONSTITUTION: The ejector pins for ejecting the casting 7 are constituted of two kinds of working groups of the first working pins 11a and the second working pins 11b. The working pins 11a are connected with an ejector plate 12 and the working pins 11b are connected with an oil hydraulic cylinder 13. After opening the dies, the casting 7 is separated from the pins 11b by ejecting the pins 11a with a pushing cylinder 15 through the plate 12. Next, the pins 11b are ejected with the cylinder 13 and also, the pins 11a are retreated with the cylinder 15. By this method, as the pins 11a, 11b and the casting 7 are perfectly separated, the separation of the casting 7 from the die is surely executed.