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

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Page 1 of 2: 12

First Fluid Bed Attempt
wbbh	#21 Posted on 06/12/2021 2:53 PM
Newbie Posts: 23 Joined: February 21, 2009	Quote allenb wrote: Please shoot us the temp readings for both sensors at start of roast, mid point and during 1st crack. Looking real good! I think you've got this roaster working for you now. 1.5 pounds of Brazil Cerado Natural Time Lower Temp Upper Temp 1 210 254 2 245 317 3 259 335 4 279 369 4 43 286 398 First Crack 6 304 446 7 325 421 8 331 433 Second Crack 9 338 450 10 40 End Then, unfortunately, I discovered the blower has ample power to eject beans out of the RC and onto the ground.


wbbh	#22 Posted on 12/05/2021 9:19 AM
Newbie Posts: 23 Joined: February 21, 2009	This is a partial list of parts used to build he roaster: Blower: https://www.amazo...B009Z0PDPI Blower speed controller: Yeeco AC 110V 4000W SCR Voltage Regulator Speed Control Driver Dimming Dimmer Thermostat Governing Temperature Governor Fan Motor Controller https://www.amazo...op?ie=UTF8 Sight Glass for Chamber: https://www.amazo...&psc=1 8 in spool: https://www.amazo...&psc=1 Connection to air box: https://www.amazo...&psc=1 Clamps for connections: https://www.amazo...&psc=1 Filter plate, bottom of the roast chamber: https://www.amazo...&psc=1 It isn�t required but I bought a 4� to 3� reducer and two 90 degree elbows to carry the chaff to the side and possibly a cyclone separator later. Burners: This is a similar burner: https://www.ebay....BMosSX-71h The mushroom from this burner: https://www.amazo...&psc=1 Igniter: https://www.amazo...&psc=1 Needle valve: https://www.amazo...&psc=1 Propane regulator assembly: https://www.amazo...&psc=1 Long Roasting Chamber: https://www.aliex...4c4dT9qUzi Philmore S38 Vernier Control Knob https://www.amazo...&psc=1 Edited by wbbh on 01/26/2023 2:11 PM


Bullrocky	#23 Posted on 01/23/2023 11:55 AM
Newbie Posts: 1 Joined: January 23, 2023	I'd like to know what burner you used. The link is not showing the burner now. can you show which one it is? also was wondering how you connected your blower to your roaster.


wbbh	#24 Posted on 01/26/2023 2:45 PM
Newbie Posts: 23 Joined: February 21, 2009	Quote Bullrocky wrote: I'd like to know what burner you used. The link is not showing the burner now. can you show which one it is? also was wondering how you connected your blower to your roaster. The burner is from a typical lightweight propane camping stove. I did drill out the jet to get more gas flow. I updated the link to a similar burner. The blower nozzle was a slip fit into a 1.5" PVC coupling glued into the air plenum box and sealed with some silicone sealant. This is a closeup of how I plumbed the burner by silver soldering a tube fitting to the burner. The burners do vary so you will likely have to adapt the burner you buy. I have seen others use a propane torch burner. wbbh attached the following image: Edited by wbbh on 01/26/2023 2:50 PM


BadHabitRoasters	#25 Posted on 01/26/2023 7:13 PM
Newbie Posts: 32 Joined: March 18, 2013	very cool! I see 2 roast cambers. Do you change out the size depending on roast load?


wbbh	#26 Posted on 01/27/2023 8:57 AM
Newbie Posts: 23 Joined: February 21, 2009	Quote BadHabitRoasters wrote: very cool! I see 2 roast cambers. Do you change out the size depending on roast load? Just one, I tried different screen configurations to prevent getting beans stuck.

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