Small Trommel Build

[Gelmac]

I 've been building this small trommel for a while. It took me long time , because I work at weekends.

I gleaned ideas from various sources online. I have two motors to test/run it , one is a 12v windshield wiper motor the other one is an old Battery powered hand drill. I also have a 120 Watt solar system to run it. Water is provided with a 1200 GPH Bilge pump, I have another one just in case it doesn't provide the necessary flow.

I will update as I go.

The trommel measurements as follows:

The barrel/drum is 34" Long, 11" Wide.

Frame is 16" Wide front and back sides, 27" high from sides, and 48" Long.

Also the height of the end (where there is a tough type wheel is welded to support the barrel from jumping off the end) is 31" high.

The Frame is made of square tubing.

First a few pictures of the frame:

 

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[DizzyDigger]

OV: Built one of those a few years back, and it does a hellofa
job with dry material. It'll classify a 5 gal. bucket of aggregate
in just a few seconds.

Unless you are adding a good spray bar it's not much for classifying
wet material.

They work very well, and I've got 1/2", 1/4" and 1/8" screens
for mine. Total cost was under $75.

 

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[Gelmac]

I realized that the screen area is too much, needs to be shorter to let the gravel/rocks spend more time to get washed thoroughly. A new mod is scheduled.

 

[Gelmac]

I realize this is a bit different then your build, but have a look.

Mike's Hand Trommel

I also looked at Mike's build. Seems working really good at classifying material. I needed a metal trommel since I will not work with alone, I have other partners who are less informed at using such things, needs to be sturdy and survive rough handling not to say anything wrong about Mike's trommel.