Kufo LS-500E Dust collector

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Forum topic by PropmakerLA posted 08-19-2019 01:09 PM 227 views 0 times favorited 4 replies Add to Favorites Watch
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15 posts in 493 days

08-19-2019 01:09 PM

If anyone here familiar with a Kufo LS-500E dust collector? We recently purchased one as part of a package deal with a CNC and it has very poor suction for a unit this size and cost. I replaced it with a Delta unit from our table saws with a lower CFM and it works much better than the Kufo unit. So far the us dealer has been of no help.

4 replies so far

View DS's profile


3271 posts in 2903 days

#1 posted 08-20-2019 05:45 PM

CFM is not the only important number here.
The velocity at any stage of your collection system will determine how much material will move.
The same CFM in a smaller diameter pipe will have a much higher velocity and will more effectively move material – to a point.

A larger diameter pipe will have a lower resistance, which can move more material, however, it will need a much higher CFM to keep the velocity up where it will have enough force to move the material.

There is a lot of mathematics involved—in the which, I am a novice.
I understand the principles involved, but still hire an expert anytime I need work done on the DC.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

View Toller's profile


40 posts in 2083 days

#2 posted 08-20-2019 06:09 PM

I had a Kufo DC 20 years ago and it was a nice unit. They were helpful when I wanted to change it from 240 to 120. Maybe they have gone to pot. Sorry.

View CaptainKlutz's profile


1779 posts in 1977 days

#3 posted 08-21-2019 05:44 AM

Never used one of the larger Kufo units, only standard bag models.
You posted it was replaced with DC from a Delta table saw, that probably uses a 4” hose?
The specifications on the LS-500E show it’s new tech 5HP collector, with 10” inlet duct, and 2600cfm?
Without blower curves, have no clue how your new LS-500e will perform with static pressure from a single 4” hose?

Kufo Usa is import and sales operation. If they are unable to get the DC fan curves (cfm .vs. static pressure), go directly to the mfg:

FWIW – Have never met a Taiwan equipment manufacturer that didn’t have dozens of staff that can read/write/speak English, when they have an English translated web site. If you get free international calls, pick up phone and call them during Taiwan business hours (evening in most of USA). Remember to speak slowly, one subject/idea per sentence, and do not use contractions or slang. :-0)

Best Luck.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

View PropmakerLA's profile


15 posts in 493 days

#4 posted 08-25-2019 12:42 AM

Thank you all for the comments.

I kept calling and calling and finally the right person answered the phone that was able to help me. They emailed me the manual and that helped with answering a lot of my questions and we got the machine up and running . I still would like to make a few changes as I think it could be better.

The multicam cnc has a 4in hose for the first 3-4 ft then steps up to 6 in. The Kufo starts at 10in and reduces to 6 to connect to the CNC. I may try and reduce the KUFO down to 4in and stay at 4in right to the router inlet and see if that helps. But for right now all is good and machine is running

Thank you

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