Here are the Small Trommels.
Four very different trommels, two gas powered and two battery powered.
This is the first one we built and it worked very well , it has a small
Keene A51A sluice under it. It is
powered by a small chain saw engine with plenty of gear reduction to get the slow 20-30 RPM.
Then came the twin engine model, that didn't double our gold production ;-) so we dropped back to....
The new Weedeater powered version. The internal gear reduction of this
motor eliminated lots of parts.
This cost less to build, improved realibility, has less mainenance, it used the A51A sluice too.
Weedeater Gas Powered Trommel
To enhance fine gold recovery on this trommel I put a Keene A51 sluice
under it, it is much wider than
the A51A and it recovers fines and small nuggets very well. The orginal 3/8 trommel screen has a 1/4
inch screen inserted in it for just fine and minus 1/4 in material. Note the metal cover over the rear sprocket
and one over the rear of hopper to protect barrel sprocket from rocks/dirt which can cause lockups.
.Great Saftey addition too. These larger Trommels weigh in at around 90 lbs are 5 ft. long and 3 ft. high.
Battery Powered Trommel
Then I wanted to see if I could build a battery powered trommel with accompaning
water pump. Here is my 8 in bat powered trommel, very quiet in operation, and it exceeded all my
expectations on my field test. It uses a Keene A51A sluice, here it is running a recirculating test in the yard
for over an hour with no problems. They pulled 10 amps total, trommel 1.5 amps and pump 8.5 amps,
the pump is a Rule 2000. This trommel is 36 inches long and 24 inches high and weighs in at 30 lbs.
Our New Baby
Now the latest member to the trommel family is this little 6 inch barrel,
battery powered unit. My Gold Gal
wanted a tiny trommel to use at camp for those buckets of dirt we bring back. This little baby comes in at
23 lbs, and is 26 inches long and 22 inches high.
Mini Trommel Changes/Modifications
The New Battery powered Trommel
Field testing the Battery powered Trommel
Bill and Linda's Prospecting Page
Bills Trommel Plans
Trommel Plans - Copyright 2003 William Fletcher