Ann: Bonanza Gold Grades Continue at Cascavel, page-102

If hammer mill number 4 is a twin for number 3, they will have everything ready to go when it arrives next month. Two mills running two shifts, all be it two 6 hour shifts, one on fresh and one on tailings, if the fresh is what I expect, 15 to 20 gt, we will see some gold then.
Very very confident this will work, looks like they have simply up-sized exactly what they are doing with the little mills. Bash it, run it over a mat and then the table and smelt it. Very simple process, not much can go wrong if the grind size is right, and I am sure they are onto that... If we get an update by the end of the week on hammer mill 3, it will be a pearlier IMHO.