Proline versus Keene | Gold Dredging Forum
Jun 30, 2009· Back in the late 80s (or maybe the early 90s) McCracken designed an 8inch triple sluice dredge that was a brilliant design for fine gold recovery which I think Keene sold under their own brand and which was a massive design improvement over the previous triples sold by Keene. But the dredge was an enormous size (relatively speaking) and its ...