Hey all,
So I have exactly that rock tumbler for my brass cleaning. Got it off Amazon about July 2024. For what it is, it works really well. I think I spent maybe £60ish when I bought it and also bought some steel pins as well, althought I think I got too small/narrow pins which were a pain in the backside. BUT, they do a great job.
It's pretty simply to use. Has a couple speed settings and a timer option, or, you turn the dial in a certain position and it will just keep going until you turn it off. By that I mean it spins in one director for 20-30 seconds, stops, and spins in the opposite direction and will keep doing that until you turn it off.
I use warm water, some citric acid, some dishwashing soap or detergent and let it go for... maybe 2 hours, depending on what I'm doing. Everything comes out clean and shiny. If i don't use the steel pins then the primer pockets aren't as clean, so I'll need to use a tool to given them a clean out if needed.
Everything feels very durable and robust - the main unit is heavy and feels like proper metal construction. My only issue was the fastening lever device on the acrylic drum. When closed, it wasn't as tight as I wanted and felt the water could come out. So I used a bit of kitchen roll and put it under the lever so it was tighter when closed and it's perfect.
I suppose for some people here who do a lot of brass cleaning in a batch, the size and volume of the drum might be an issue as it isn't the biggest. But for me, I don't do huge amounts of brass cleaning in one sitting - I'll usually get stuff prepped over a week or two and then tumble it in batches. I just leave it in the garage to turn, undisturbed. I do have it plugged into a spare wifi power adapater so I can set a timer if I'm going out and don't want it to spin all day/night. Of course I could use the dial on the unit to do that... but why not make it more complicated for myself, right?
Anyhow - I like it. For what it is, what I use it for, and the cost, it works great. And if it breaks, it's only £50-60ish out my pocket, not £250+ for a big expensive brand name.
Any questions, feel free to ask.