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No one looking up trommels on KZfaq is interesting in selling rocks, son. There's gold in them thar hills.

Not true bashpr0mpt. Some of us looking to clean our landscape rock.

bashpr0mpt great idea!

+Anne Wright I am working on it, there just doesn't seem to be enough hours in the day.

@@BSpotBuilds can we see it now 5 years later?

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My thoughts too

+Yer Man It always looks like you just shoot a video from start to finish in one day....but they take weeks and slow a project way down.

That’s when I subscribed.

trommel screen machine, China Professional Manufacture , Get trommel screen design drawing and best price, Contact sales manager: Cathy Fan Mob./whatsapp: 0086-18339818180 cnhsmzg@hotmail.com

It was a simple and cheap way to get a positive drive.

It's shale.

Steel drums don't have the thickened rim that the cog gear runs on, and I think it would be very loud as the rocks rolled around in them.

Yes they are a duplicate of each other, and they run independently.

Put it in a tank with water the rocks and metal will sink to the bottom and remove them with a screw. - or - Use an air density separator. Basically blow the lighter material away with an air stream.

Still going I have replaced a couple cogs and I only use occasionally.

+SpicyAl3000 --- The motors a about 1/4 HP and have a 10 to 1 gear head. I used these because I had them larger would be better. I changed the pin drive wheel size to set the speed.

Grand, thank you.

Still rolling along no issues.

It depends on what your putting through, if it contains large rocks the steel drums will dent and distort rapidly. Wall thickness on modern drums isn't what it used to be. Plastic flexes as the aggregate bounces around inside and absorbs the knocks. Also the plastic drums are loud when running, steel would be real loud. As for the frame I used wood because I have lots of it, steel would work well, aluminum will cost a lot to build a structure stiff enough. Again it depends on what you separating, how fast the drums are turning and how much you load the screen.

Wow, great advice, you make a solid point about the noise. I'll be building it for mining on a dry claim. My aggregate and sort is a little smaller than what you have. I just have a lot of throughput. I think what I'll do is go for plastic with holes drilled to the equivalent of a 10 & 20 mesh sort. You've convinced me on plastic drums. The price tag of plastic is nicer than metal too. Thanks again.

Just on the exit of the last barrel because the drums budge in the middle It helps move the rocks out of the last drum.

The chute is just plywood with sheet metal on it. The drums are on a slope, angle is dependent on how fast you want the aggregate to move through.

The metal strip with holes is a common item in the USA, it is called plumbing strap, or Perforated Galvanized Steel Duct Strap

I don't know I have put about 50 yards through them and they still look good.

Wow, that is pretty good. I have used some of your design idea to make a vegetable washer. My next project is to make a soil trammel driven by a treadmill. Will use the wide rubber walker belt to drive the one drum without holes.

Yes I do.

I haven't used it in quite sometime but when I did somewhere around 50-100 yards.

It's shale containing a lot of calcite.

@@BSpotBuilds If it was ground up would it have any usefulness?

My drums are still running, occasionally when I need rock or sand. The holes in the rim area are slightly elongated this could be fixed if it becomes an issue by wrapping it with steel flat bar. I replaced the drive cogs with steel because I needed to go to a smaller wheel to increase the torque. The steel ones are a little worn on one side and can be flipped around to change the drive side of the pins.

around the 22min mark

+Jim Hixson Thanks, I have no idea what a sandhill crane sounds like but I don't think we have them around here.

I am sure it could.

Output shaft is around 30 rpm.

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trommel screen machine, China Professional Manufacture Get trommel screen design drawing and best price, contact sales manager: Cathy Fan Mob./whatsapp: 0086-18339818180 cnhsmzg@hotmail.com

+Tracy Turner The drums are very tough I don't see any wear other than surfaces scratches. I have put about 40 yards through it so far.

thank you

Is it still holding up?

--- It is driven by two 24 volt wheel chair motors. I used them because I had them but a larger motor would be better.

what rpm do the motors run? any additional electrical setup?

@@mrstephenrobb - He answered the Motor RPM question, as 30 RPM, at the Output, as I read it!

Contact, what are you interested in?

I have had to replace some of the wood grizzly bars other than that it still works.

@@BSpotBuilds that's pretty good. Thanks! Great setup.

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+Nathan Dean -- I have a large fines pile I am going to check by panning.

I used two 24 volt wheel chair motors, because I had them a larger motor would be better.

Are you serious? And who cares anyway your screening rock.

Full hole is .25, half the hole offset would be .125

+Kimberly Vanilla --In my design I prescreen out anything >5" with the bars when dumping the load. Then remove fines in the fist section with 1/2 inch holes. The next section has 2 inch holes so I get 1/2 - 2" out of it. The overs that come out the end are 2 - 5". I used three barrels per section so that I can use my back hoe to remove the sized rock from each section and its bucket is just under 8' wide so I needed three to keep the piles separated. You can make a much shorter screen and it will work fine. It all depends how you are feeding and removing the sized material. Shorter also will limit throughput.