DIY Metal Cyclone Chaff Collector - Page 2

Discuss roast levels and profiles for espresso, equipment for roasting coffee.
edschlukebir

#11: Post by edschlukebir »

that's nice. I cobbled something together on my roaster, but I've never been very happy with it. Keep us posted on how well it works.

dtrevino15

#12: Post by dtrevino15 »

Nice job. Jealous... wish I could have done this

bigianyan

#13: Post by bigianyan »

Fantastic job!
May I just ask as i'm contemplating with my own collector, however im lost with what kind of fan i could use with high temperature. i could get my hands on blower fan mostly found on cars but those are made of plastic. my cyclone would be based same as on this post

DanoM

#14: Post by DanoM » replying to bigianyan »

You should stay away from plastic fans in my opinion.

For my own chaff collector I purchased a DC blower from Aliexpress:
https://www.aliexpress.com/item/32367788851.html
It works great for my Kaldi Fortis roaster with great flow control with a DC PWM controller.

Documented here: "Homemade" Small roaster cyclone
LMWDP #445

Capuchin Monk (original poster)

#15: Post by Capuchin Monk (original poster) »

bigianyan wrote:Fantastic job!
May I just ask as i'm contemplating with my own collector, however im lost with what kind of fan i could use with high temperature. i could get my hands on blower fan mostly found on cars but those are made of plastic. my cyclone would be based same as on this post
Thank you.
As DanoM posted, you want the metal version because of the heat. I've been using the DC blower purchased from eBay and it's been good especially because of the speed variability of DC motor via PWM controller.

As for my metal cyclone, it's been working without a problem but due to the small pipe diameter, it doesn't produce as much suction as I want. Because of it, I'm in a process of building another one with this larger cone I already purchased, 2" diameter inlet pipe and 2.75" diameter center pipe. The construction method will be the same and I expect this one to be little easier since that cone is thinner gauge metal.

Capuchin Monk (original poster)

#16: Post by Capuchin Monk (original poster) »

Image of parts gathered.