keene pumps for gold dredges
Keene 4" Suction Gold Dredge . Keene 4" gold dredges are the workhorses of the industry. A 3" dredge can be expected to process up to 2 yards of gold bearing gravel per hour* but a 4" dredge can be expected to process up to 3 yards per hour*, an increase of 50% to in your ability to process and recover gold.