My DIY, low-budget, concrete-roller grain mill - Home Brew ForumsThe axles are 1/2" dia. steel cut to length and a roll pin pressed into them (after being drilled) to make sure they don't spin inside the concrete.concrete roller mills plans,Concrete Roller Malt Mill - PSSurvivalJul 24, 2005 . 2) of a concrete roller malt mill which was built in '96. . This is embedded in the concrete and helps bond the concrete roller to the shaft and.
concrete roller mills plans