How do vertically mounted flat burr grinders work?

Grinders are one of the keys to exceptional espresso. Discuss them here.
Acavia

#1: Post by Acavia »

I do not understand how beans flow into burrs, get ground and flow out. Anyone know of any animation that shows the flow of beans?

Edit: never mind, I figured it out.

splashalot

#2: Post by splashalot »

Please share!

I've been wondering the same.

Acavia

#3: Post by Acavia » replying to splashalot »

My grinder has three fins, on the bottom plate that holds the bottom burr. Centrifugal force push the grinds out on those fins, then when a fin gets to the open shoot, the same force forces the ground beans out the shoot.

Edit: I forgot I asked about vertical. My response in this post was horizontal.

zan

#4: Post by zan »

Acavia wrote:I do not understand how beans flow into burrs, get ground and flow out. Anyone know of any animation that shows the flow of beans?

Edit: never mind, I figured it out.
Santos Broyeur model #1 has a exploded view, at the end of the page:

https://www.santos.fr/en/products/coffe ... der/01BAR/

and from another model:




The key it is in number 18

Regards

Jonk

#5: Post by Jonk »

What I've been wondering is if the whole grinding disc is used evenly, or if more grounds come out of the bottom half.