I recently purchased an AiXun automatic soldering tip cleaner.
It has a couple of spinning brushes inside, a bit like an automated car wash but for soldering tips.
Here's a five-minute video demonstration and review:
So, what's the verdict?
I'd suggest it's an alright product; it certainly works, but notice in the video that for super-fine tips, you may need to move around the tip to brush all around it.
However, the product could have been much better with slightly more effort from the manufacturer. Also, I think it's slightly pricey for what it is. A fairer price would be close to half of what it currently retails at. I didn't like that spares seem very hard to locate.
If it ever goes on sale, and if you're interested in upgrading from wet-sponge tip cleaning for hobby/DIY use, it may be worthwhile. If you're already using metal wool (brass or steel) for soldering tip cleaning, it's harder to justify purchasing the CM30.
If you're using a soldering iron for work purposes and want an automatic tip cleaner, then you may as well pay the extra for one with spares so that it is serviceable. The Weller WATC100M looks interesting, it may be worth considering; I've not tried it. If you have any suggestions, it would be great to hear them.
Thanks for watching / reading!