- Introducing the Rocky Tertiary Sand Crusher. Utilizing a dual horizontal shaft, 100% impact crushing process, the Rocky can produce 85-97% usable sand in a single pass. Contact Am Cast, Inc. for more information about machine demonstration dates in your area. Toll Free: 888-993-2772
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Rocky Tertiary Sand Crusher
Innovation in Sand Production. There has never been a crusher with Rocky's capabilities. Turn material from 2mm to 35mm in diameter into 97% usable sand in a single pass. No grinding, no compression, only impact. More...