Feed and grain mixers for sale. Including roller mills and hammers .12 items . Benmic Roller Mill (complete milling system). Miles, 4415 | Used. Machinery; Feed Mixing & Milling. We have a complete system for sale all designed and manufactured by Benmic Industries including: Switchboard and PC designed for up to 4 silos with controllers and sequential shut down, thermal overloads etc.benmic roller mills,benmic roller mills,Apollo Machine and Products Ltd.: Roller Mills | Saskatchewan .Apollo Machine and Products Ltd. is the leader in the manufacture of roller mills destined to the microbrewery industry.