HEWITT, 2020-7-20 · Browse our inventory of new and used HEWITT-ROBINS Aggregate Equipment For Sale near you at MachineryTrader.com. Models include 8x20, 6x16, 5x32, 6x13, 6x20, 6x30, 12x48, 15x36, 48x17, and 48x20. Page 1 of 1..auctiontime.com, 2020-2-10 · Sorry, your search resulted in no matches. Try changing the content of a search field. You might also try leaving one or more of the search fields blank..