Has anybody made sawdust through 3/8 or smaller screens with a tub grinder?
How about 3/4 screens or smaller?
Why do you want to make sawdust? The dust is like the lowest value of the wood industry. Simply a by product of making usefull stuff outa trees. Besides it seems to me that your going to have to use a pile of fuel to make sawdust with a tub grinder. If you need green sawdust, go to a sawmill, tell them what you want and they will usually either give it ti you, or you might pay a little for a loading fee. If dried sawdust is what your looking for, the mill might have that if they do any finish work, but if they dont cabinet shops, and places that make spindles and stuff usually have a ton of it to get rig of.
You need to check out the latest developments in the wood industry. No one is sawing logs so there is no sawdust. Well there is of course its just really expensive. $15 cu/yd to be exact plus some freight to get it there. I'm contracting a job with a mill right now to turn chips into saw dust. Things are changing quickly.
how much sawdust do you need?
100,000 cu/yds
just curious, are you producing pellets?
That may be what some of the material is used for. I'm not involved with end product.