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Hi Does anyone know of a source of expertise in seed size separation? e.g books, websites etc I want to separate large volumes of spherical macadamia nuts on their diameter some possibilities are; trommel - fast V sluice (dry) - slow vibrating table - inefficient for round...

I'm not sure we are heading this way at all With fossil fuels becoming ever more expensive we will I think downsize tractors as the emphasis will be placed on no-till. I'm moving that way and saving money already. The other changes in future will be more sun-migration and more people growing...