asked the all knowing one for “cannabis grinder”: essentially all that gave me were the little hand held devices for grinding enough for a joint or too.
so I tried “hemp grinder”.
…and got what looks like a giant version of the same critter:
$12k is a non-trivial sum for a grinder, but the fact that this thing looks so much like the devices we are all familiar with suggests there is a decent probability that it will work…maybe 
Did you end up using the Pulverisette 19? It looks a little small for a commercial operation. Only a 3" or so opening. Any feedback would be appreciated.
It’s a nice looking unit, but hard to justify for the price if you’re not a research lab. I think it would do something like 100#/hr at most? Or maybe that’s the bigger one, I can’t remember for sure.
For the same price, you can get about 4000#/hr of high quality milling capacity if you’re actually working at scale.
Fritsch is a 100 year old manufacturer of quality engineering and design for particle size reductions of all materials. The history in food, pharma, and agriculture have contributed advancements in milling of hemp and cannabis. Check out cannabis-milling dot com for more info. If we can help, please let us know.
This is used for pre-processing for extraction, pre-rolls. Published data shows extraction efficiency and yield increases with the use of this instrument and the precision output. Your can process 1-5lbs per minute on average and gain consistent and homogeneous particle size in a controlled method that can be used to establish SOP’s and validations for GLP and GMP processes.
There is an alternate feeding method using the cyclone action airflow that will allow up to/about 5lbs/min of dried whole flower and loose leafy materials to be fed. It is used successfully for many commercial operations, but scale must be considered. In some instances, more than one instrument is put into processing for various materials or production suites. The consistency and homogeneous particles that are the end result of the P19 milling effort provide significant product integrity and overall quality for extraction and pre-rolls. The material output is not dependent upon or altered by the device or the user in this method and can be used for GLP and GMP SOP environments.
Heat mitigation and lack of cell wall damage resulting in chlorophyll contamination is another important aspect of product quality that is gained with this method versus closed batch and mechanical grinding processes.
Is there certain blades and speeds needed? Or does any shredder work?
What do you guys think about this
We use an old industrial plastic granulator to grind all our biomass, we have a cheap dust collector attached to the bottom pan so it gets fed into a large plastic bag. its a clean affordable option at about $1500-4000 depending on the deal you find and the size needed. We can go through about 500 pounds in a couple hours.
Anybody here have any experience with one of these?
Franklin makes a delumper that has been an outstanding fit for the hydrocarbon system. I went with a hammermill to match the decanter as powder tends to give up a better yield on etoh.
can you define “better”?
my experience with hammer milled biomass suggests that one gets more, but calling it “better” is not the first place I’d go.
We have multiple filterpresses each designated for specific purposes. Pulling out the undesirables is worth it is you can average a 20% yield increase at scale. Not to mention pump-ability. Clogged lines suck.
@cyclopath
Have you or anyone tried using something like a feed grinder?
https://www.tractorsupply.com/tsc/product/ama-usa-electric-grain-grinder-13-gal
Guess you’ve got to slurry if you’s in a hurry…
But my thought with this is that it can make particle sizes as large as 7mm. I checked out some videos of it being used on corn and other grain and it looks pretty solid, not much powder comes out.
Give it a shot. All sorts of innovative dohickery gets its start at the tractor supply store.
Rather disappointed that neither of the ones near me carry dairy land vacuum pump oil…
Can confirm that the tractor supply grinder does not work. I tried slowing it down with a variac and also build a new blade. Eventually burned the motor up after turning most of it to dust.
This https://www.amazon.com/Earthwise-GS70015-Electric-Shredder-Collection/dp/B00W874Y46/ref=mp_s_a_1_5?keywords=electric+wood+chipper&qid=1575239534&sprefix=elextric+wood&sr=8-5 does work great however. With the bin and the feeding tray. Does about 1lbs a minute.
I have a Fristch 19 Pulverisette Rotor-Knife mill.
It works well but only when the material has perfect moisture content. Too much moisture and it is incredibly frustrating because the weed will clump up on the rotor and sieve casette and the friction will create hash pucks which wont mill. You’ll have to keep opening the damn thing to clean it. I dont know if I would recommend the fritsch unless you have solid control on your moisture level in your biomass.
Thats a bummer considering the price tag for it.
