Reply by crank49

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Posted on Help me with my dust collection dilemma

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4030 posts in 2969 days

#1 posted 11-22-2011 12:48 AM

The HF dust collector will suck the chrome off your bumper.
Well, maybe not completely.

Seriously, if you are not able to get this collector to work just as well with a 20ft duct as anyone elses 2 hp collector I would be suspicious of the pipe size and number of elbows and their location. Not the collector.

And a blanket statement of 2 hp can’t handle more than 20ft of duct is just not based on objective engineering data.

The HF 2 hp collector with its stock, 5 micron dust bag will have all the power required to fully utilize a 4” duct and a 2-1/2” duct, both open and working at the same time with 25ft runs. I do it every day. No problem. Wouldn’t bother me if the ducts were 40 ft long.

Now, put a 6” duct on there and the velocity will go down an you could have a problem. Same thing with running two 4” ducts at the same time.

You know, a tight radius 4” elbow has the same flow resistance as 10 ft of 4” straight pipe. Using the right size duct, long radius sweep ells and a minimum of flex duct is key to making these systems work.

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