PURPOSE: To provide a driving system by which normal operation can be continued while applying an engine for a truck for a driving apparatus of a spiralling- type crusher and preventing engine speed from lowering or stopping at the time of over-loading.

CONSTITUTION: A level detector 13 is provided in a crushing chamber of a crusher 4, a slip detector 12 is installed in a driving shaft 112, and a controlling apparatus 14 to send an instruction signal to alter the supply amount of a vibration feeder 2 or a stopping signal of a vibration feeder 2 after receiving a raw material level increase or an over-loading signal of the slip detector 12 is provided, and thus a driving system is composed.