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Homeroasters - Home Roasting Coffee Community » BUILDING A ROASTER » Fluidbed Roaster

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Air blower vs vaccum cleaner pump
vihitk	#1 Posted on 08/09/2023 8:00 AM
Newbie Posts: 1 Joined: August 03, 2023	I'm thinking about building a new fluid bed roaster. But I can't find a vaccum cleaner motor, like this one https://www.amazo...B07MVNWHF2 which are one of most suggested air source option in these forum, in my locality with ease. I wanted to ask if someone has used an air blower like this one https://amzn.eu/d... with any success? I'm using a square base with for heating chamber and a borosilicate glass tube of 5" diameter and 14" height, target weight of my roast is 300 grams. Can I used the air blower option or are there any downsides in using it? Edited by renatoa on 08/09/2023 8:55 AM


renatoa	#2 Posted on 08/09/2023 9:05 AM
Administrator Posts: 2744 Joined: September 30, 2016	The second is much better, the first is way too powerful. Even 800W are too much for 300 grams, imo. You should reduce motor thrust/rpm to such a degree that risk reaching the area of unsafe usage, where you can experience thrust variations and risk of rotation stop. I have such leaf blower featuring a 400W motor, that was capable of exhausting quite violently half pound of roasted beans. At full power, connected directly to mains, no speed variator...


renatoa	#3 Posted on 08/09/2023 9:09 AM
Administrator Posts: 2744 Joined: September 30, 2016	For URLs to work, check to not be surrounded by any white spaces, nor leading, nor trailing. Like... Code Download source [url]https://www.amazon... not [url]<blanc space>https://www.amazon... Same for the link ending, no space before the closing tag [/url]


progen	#4 Posted on 08/21/2023 10:52 AM
1/4 Pounder Posts: 82 Joined: December 17, 2019	Vihitk, too bad you're not staying in the same country as me. I have 2 new 1500w ceramic heating elements. Bought in end 2019 to build a hot air roaster but got more and more ambitious until it became a 8000+ watt one. Looking for someone to give the elements to.

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