Rock Crusher Hammer Mill The Rock Crusher Hammer Mill is an extremely durable and affordable rock crusher designed to crush ore into a fine powder to release or release gold (or other valuable minerals). PCX series is an integrated crushing and shaping machine. Through the design of adjustable movable lining plates and material self-flow trough, it can realize impact crushing, impact shaping and self-flowing material, changing the two-stage crushing into one-stage crushing. It can be used as the second-stage crushing in large production lines. Crushing and shaping.