Peanut butter grinders are sometimes used as pre-grinders.
Also, you might take a look at using a 2-roll mill that uses stone rollers. Although they sound expensive, they can be purchased new for as little as €5000 from the factory. They can also be used for processing nut butters.
thanks clay... may I ask what factory you are talking about?
Italian company. Pietroberto. I am trying to arrange a special pricing deal for ChocolateLife members.
I use a simple grain grinder that you can buy easily for about 50USD, and it does a great job for a couple of kilos of nibs (Picture attached). If you talk about larger quantities, you can motorize it or get a larger capacity one, that attaches to your planetary mixer.
Thanks but I kind of need to do 30 - 60kg batches
This one may be closer to what you're looking for. They will have to customize with a 50Hz motor.
The throughput is actually much higher than you need, but there are not many options between something that will do a couple of kilos an hour and what you say you need. So - going big may be the only option. That said, the machine is about the same price as one of the peanut butter grinders but is a lot more versatile and has much greater throughput.
The description says it can handle flax seeds and sunflower seeds. I would ask them specifically if it can handle peanuts and if the answer is yes then it should be able to handle nib.
That might work. The question I would have to ask is how is the mill kept cool? Milling cocoa generates a lot of heat - enough to burn the beans/liquor if one is milling quite a bit. Most ball mills, and stone mills are water jacketed and keep the grinding area below that threshold.
I'm saying this because earlier in my chocolate journey I found I could easily burn the liquor even with a Champion juicer. Not fun at all.
Is that for cracking the beans or grinding into liquor? Are the rollers from your Crankandstein? They look bigger.
just for cracking the beans and the guys remade the rollers bigger...