Rods are loaded or charged into a Rod Mill using a mechanised charger. The rod charger with extendable boom moves rods safely inside the trommel/trunnion before charging with a typical 30 seconds or less cycle time per rod.
How you charging a rod mill is best explained by the video below.
https://heathandsherwood64.com/products/mpe/grinding and https://www.mclellanindustries.com/rodcharger.html sells them.
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