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Posted on calling all Harbor Freighters - dust collector stock question

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HackFabrication

135 posts in 101 days


#1 posted 03-21-2019 08:24 AM

I would also like to know if anyone has done an actual airflow test to verify that the Rikon impeller develops more cfm when installed in a HF DC?
- Phsntdawg70

When I was researching this, there are a number of internet posts, on various forums and YouTube showing the increase. Didn’t save any of the links, but a simple search will pop up a lot.

The Rikon impeller has the vanes angled in the reverse direction of the HF’s. And it’s 1” larger in diameter: 10 7/8” vs 9 7/8”. Check my thread https://www.lumberjocks.com/topics/303647 for pics of the two.

According to my research, and if IIRC, this reverse vane design, helps maintain airflow volume as static pressure increases. Where as the HF’s design provides a lot of airflow, but diminishes as SP increases. I’m certain someone with a better memory than me, will chime in and correct this if wrong. But yes, the numbers are out there.

I didn’t check the airflow at the impeller housing before installing the Rikon impeller. But my simple ‘hand’ check told me that there was a lot more air getting sucked through the housing.

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