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View Thread » BUILDING A ROASTER » Drum Roasters
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Exhaust Airflow
It does not use a squirrel cage fan either, plus there is an outer fan that attaches to the motor shaft (you can see it in the caged area under the motor prior to main fan housing) that keeps that area cool.
"If this is coffee, please bring me some tea but if this is tea, please bring me some coffee." ~Abraham Lincoln
Right, an impeller.

Ok, will look for this motor type for next iteration, we are still in the prototyping phase.
Here’s another photo of what a heat resistant blower for a coffee roaster looks like:
(Sorry photo not uploading)
Edited by hankua on 12-25-2017 13:54
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