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Does anyone have this specific Cyclone? Tempest 2 HP Portable Cyclone (not the 2.5 HP)

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Forum topic by RonGoldberg posted 307 days ago 987 views 0 times favorited 10 replies Add to Favorites Watch
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RonGoldberg

31 posts in 956 days


307 days ago

Topic tags/keywords: question

Almost ready to pull the trigger on a dust collection system. After months and months of reading, talking to people, etc—-and yes I have visited Bill Penz’s web site and actually exchanged a couple emails with him. Very nice, polite, knowledgeable and helpful guy.

I am considering the Tempest 2 HP portable Cyclone.

My shop is pretty small (only 170 square feet). I am running only one tool at a time and I have all my duct work planned out and everything is gonna work fine. Now I just would like to see if any of you have the actual Cyclone I am considering and what your thoughts are on it.

http://www.pennstateind.com/store/TEMP2PCX.html?concept=1

Thanks,
Ron


10 replies so far

View Shawn Masterson's profile

Shawn Masterson

1242 posts in 547 days


#1 posted 306 days ago

build more shop.

View Manitario's profile

Manitario

2259 posts in 1481 days


#2 posted 306 days ago

If you have a small shop and you plan on putting in duct rather than rolling the cyclone from machine to machine you may actually save space by getting a DC that you can mount on the wall, eg. the 2.5 HP Tempest. As well, you’ll notice from Bill Pentz’s website and his static pressure calculator that the majority of the resistance in your system will come from the bends in your ducts and duct size rather than length of duct. I found when I had a smaller shop that I had to have a lot more bends in my duct and use more flex hose than with a larger shop. Anyways, this is just to say that you may want to consider the 2.5hp tempest with a starting point of 1400 CFM and an impressive fan curve rather than the 1000CFM 2hp Tempest.

-- Sometimes the creative process requires foul language. -- Charles Neil

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RonGoldberg

31 posts in 956 days


#3 posted 306 days ago

Manitario,
I agree the Tempest 2.5 is better and was originally considering that one too. It just is to tall for my shop (max ceiling height is 84”). That is why I was looking for a cyclone that was shorter. I understand my choices are limited. I can’t find the fan curve for the 2hp tempest.
Here is my ducting diagram. Remember, I only will use ONE tool at a time. Based on the drawing below, do you think the 2hp at 1024 CFM will be adequate?

!https://s3.amazonaws.com/lumberjocks.com/mtjimv6.jpg!

Let me know your thoughts. Thanks,
Ron

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RonGoldberg

31 posts in 956 days


#4 posted 306 days ago

oops, here is the second pic.

View Fred Hargis's profile

Fred Hargis

1644 posts in 1092 days


#5 posted 306 days ago

Ron, what’s the diameter for those ducts? (If it’s noted on the pic, my eyes can’t make it out.)

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

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Manitario

2259 posts in 1481 days


#6 posted 305 days ago

Using Bill’s static pressure calculator on average your duct runs have about 8” of static pressure, assuming that your pipe is 6” and the flex hose is 4”. On the 2.5 HP Tempest, that would get you about 900CFM, I’m not sure how the 2 hp Tempest would perform. Depending on your ceiling height, you can go with a shorter length of flex hose b/t the cyclone body and the dust bin, this can save you some height and possibly allow it to fit in your space.

-- Sometimes the creative process requires foul language. -- Charles Neil

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RonGoldberg

31 posts in 956 days


#7 posted 305 days ago

Manitario,
Ah, great points. The trunk line is 6 inch. The drop are 5” and the flex hose is 4”. PSI designed the plan for duct work. I repeatedly asked them – “aren’t I supposed to use 6” trunk, drop and then at the very end use the 4” flex” and they said, with the size of my shop (10’ x 17’) that 6” ducts throughout would not be correct.
I did not realize I could cut the flex between the cyclone and the dust bin. That might be able to help with the ceiling height issue.

If the 2.5 Tempest has a CFM of 1450 and you calculated a loss of 550 cfm from static pressure and ductwork to come up with about a final CFM of 900 then If I choose the 2 hp unit with a CFM of 1045 and subtract the 550, I get a final CFM of 495 which is still about the 350-450 needed for each machine, right?

Thoughts?

View Manitario's profile

Manitario

2259 posts in 1481 days


#8 posted 305 days ago

depends what your goal is; the fact that you’ve read Bill Pentz’s site and even contacted him(!) tells me that you’re interested in more than just chip collection. I know that some of the guys on LJ’s disagree with Bill’s CFM targets but they are a good starting place and have some solid science behind them. Therefore…you should probably target 800 CFM if you want good fine dust collection, not just chip collection. Only 350-450 cfm/machine is pretty low…

-- Sometimes the creative process requires foul language. -- Charles Neil

View Fred Hargis's profile

Fred Hargis

1644 posts in 1092 days


#9 posted 305 days ago

I had to shorten the flex between my DC and the drum in the last house, you need some length there but not as much as most of them have. Your CFM goal is way too low, though. Try getting upwards of 800 CFM at the machine for best dust collection. Even then, the machine hooding/ports may reduce that, but you’ll still get better performance. With enough DC, I’ve run 6” all the way to the machine everywhere I can.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View RonGoldberg's profile

RonGoldberg

31 posts in 956 days


#10 posted 304 days ago

Fred,
Great idea of shortening the hose bw the cyclone and the drum. Turns out many have done that and the folks form PSI also recommend it for ceiling height “challenged” workshops. Now I can upgrade to the 2.5 hp unit which way outperforms the 2 hp portable unit. Thanks.
Ron

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