Reply by papadan

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Posted on Which is better? Aluminum alloy impeller or steel impeller in a dust collector.

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3584 posts in 3786 days

#1 posted 02-19-2017 06:47 AM

Doc, I don’t know about all the things others are talking about, but I do know your question. Your DC was designed and built with a steel impellor. Changing to an aluminum will not give any advantages to your machine as far as performance is concerned. The biggest difference is when that little chunk gets past the separator and does go through the impellor. The damage to the aluminum could be total lose. I had a 2 hp grizzly for about 10 years. It was under a shed roof beside my shop/garage. the whole time. I had one 4” hose that went throught the wall and hooked to the dc. no seperators or anything. When I had to move and couldn’t use it at my new home, I sold it on craigs list for almost as much as I paid for it new, No damage anywhere other than the paint wore off the impellor and the inside of the case. I say stick with the steel, cost less and hold up longer.

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