Self-synchronization of two inertia vibroexciters installed on inertia cone crusher body is studied. Loss of power in crushing is taken into account approximately by installing a special malleable damper between crushing cone and crusher's body. It is shown that prior to resonance crusher may operate in the range between partial and natural vibration frequency. In above resonance range a stable synchronously co-phasal regime exists only as a subject to certain inequality relating crusher's inertia and geometrical characteristics.
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