We use the "resinizer" from aqualabs, it cost about 300 bucks but we made that back on the first batch of hash we made at the shop.
Its probably bigger then you would need but its good for us to hash out ~10-15 lbs of frozen trim at a time.
We generally put the trim into the bag it comes with. let it soak for 10-15 minutes then run for about ten minutes, let sit again for ten then start draining.
we use the 220 bag to catch junk, 125 and 75 for main bulk of hash then finally the 25 but very rarely see any substantial hash in the 25 micron bags.
if you want exact details PM me and I can give them to ya. (i also saw a pretty good video on here once that explained step by step how to do it)