That’s a heckuva setup you have there with the mixer.
Thanks. It's a great system for processing a lot of compost. For years I just used a 2X4 frame with hardware cloth, placed on a wheelbarrow, to sift my compost. That works great for small amounts of sifting. But it took me a very long time to sift out compost with that system. Now, I can use the cement mixer compost sifter and sift out 7 cubic feet of compost in less than 15 minutes whereas it used to take me almost 2 hours with the manual system.
I also use the compost sifter to mix my topsoil with compost when I fill up new hügelkultur beds for the first time. My initial fill is topsoil and chicken run compost mixed 1:1. The yearly top offs in the beds can be straight compost. But I was told to start off the beds with the mix of topsoil and compost. It works for me. I just put in a couple of shovels of topsoil followed by a couple shovels of compost and it gets mixed all together when it falls down into the wagon. Easy. Already mixed and ready to use.
I also have various inserts for the sifter barrel. I mainly use a 1/2 inch X 1/2 inch hardware cloth insert for my raised bed compost. But I also have 1/4 inch X 1/4 inch hardware cloth insert for really finely sifted compost for potting mixes. Or, I can take out the inserts and just use the 1 inch X 1/2 inch wire on the barrel for a coarser sift.
How often do you clean the run out? It’s amazing how fast that stuff can accumulate in the run.
My chicken run never gets completely cleaned out. It is truly a chicken run composting system that never stops. I took out about 21 cubic feet of finished compost this past spring and estimate that I used maybe only 10% of the chicken run compost.
I am OK with that, because the compost just seems to get better over time. It can sit there in the chicken run until I need it.
My run is just a touch over 6 feet tall and I’m 5-10, so when the run has been emptied of all the soil an chicken manure, up I can stand upright in it without having to tilt my head. However, that doesn’t typically last too long because I only really empty it out maybe 4x a year. I clean the coop much more often but not the run.
Yeah, that has become a small problem for me. My run fencing is also 6 foot high, and I'm 5-9. When I first converted the chicken run into a composting system, I could stand upright without a problem. However, with about 4 years of accumulated leaves, grass clippings, old coop litter, etc... the chicken run compost litter gets up to about 18 inches deep in the fall, it compacts and composts over the winter, but in the spring time it is still about 12 inches deep. So, I have to bend slightly in the chicken run because I have bird netting at 6 feet high.

One of my future goals it to add center supports in the run to lift the bird netting to about 7 feet 6 inches high. Then I could stand upright in the run even with a good 12 inches of compost under foot. I typically only work in the run early in the spring to harvest some compost, and then maybe later in the fall. So, 2X per year is all I really go inside the chicken run to harvest compost. It's not too bad to have to bend over a little for the short time I am actually inside the run.
Didn’t know if you used any of your chicken run compost in regular compost piles or not?
I have a nice series of 5 pallet wood compost bins under a bunch of trees, out of sight. But I don't use it much anymore. All my composting is done in the chicken run for the past 2+ years.
That’s some good stuff for sure and kudos to you on your sifter system, that’s pretty clever.
I got the idea for the cement mixer compost sifter from some YouTube videos. What I did was to make some modifications to the setup so that a person does not have to drill any holes in the cement mixer drum. That way, if you ever want to use it as a cement mixer again, you don't have holes in it.
I did a thread about the whole project and my modifications a few years ago here on the BYC forums. It got some good positive feedback. I realize that most people are happy with a simple 2X4 wood frame with hardware cloth for sifting compost. That's OK. It you really want to step up the composting game, then something like my cement mixer compost sifter is the way to go.

I had to buy a brand new cement mixer because I could not find a used one for sale. That was the main cost, of course. All in all, at that time, I spent around $240.00 on the cement mixer compost sifter project. But I ran the numbers on how much compost I could sift in one hour ($60 per hour at that time), so my cost was covered in the first 4 hours of use. Since then, it's all been pure profit. It's one of my few investments that paid for itself in just one day!