Modified portable band saw?

It seems I'm often stuck looking for unique tools, for situations I
come across in my business. Long story short, I've been trying to find
a way to have a quiet and very portable, small metal band saw, that
can also hold up to some pretty long running periods. Basically the
size of the average portable band saw is fine. But I'm wondering if it
would be possible to modify one and have it powered by a quiet AC
induction motor. I've seen people modify portable band-saws into stand-
up models, but I've never seen anybody change the motor. I've searched
all over and apparently nobody makes such a thing. JET has some that
are very close, but they still use the typical noisy portable motor.
Just wondering if anybody has ideas for doing this.
Thanks,
Reply to
Dave99
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"Dave99" wrote: (clip) But I'm wondering if it
^^^^^^^^^^^^^^^^^^^^^^^ Induction motors are heavier and larger for the same horsepower, compared to AC/DC brush type motors that are used on hand held tools. Pistol drills, portable circular saws, weed cutters, portable grinders all get their power at small size and weight by spinning really fast. The crossover comes with table saws--the small contractor saws that are moved from job to job use high speed brush-type motors. Cabinet saws such as used in a fixed location generally have induction motors.
The Portaband and Milwaukee hand-held metal-cutting bandsaws are extremely useful and versatile, but their size and weight would jump way up if induction motors were used.
Reply to
Leo Lichtman
I used a noisy motor from a vacuum cleaner beater bar on my Sherline mill as a spindle motor. It was very loud. I used a router speed controller from Harbor Freight for speed control and was pleasantly surprised by a significant noise reduction at less the wide open throttle. Maybe this could work for you? I doubt full power is needed in every cut. If you try this, let us know how it turns out.
Reply to
Ronald Thompson
Thanks guys... Leo, you're right... Adding an induction motor would make it less portable, but still a heck of a lot more portable than bringing a full size band saw. I should have included that I would also fix it to some sort of stand, so hand holding would not be needed. It would basically be like a mini horizontal or vertical band- saw. Ronald... Slowing the motor would probably help some.
Reply to
Dave99
Milwaukee makes a table/vise for their portable band saws. They make about a half dozen variations of the band saws, and they have various speeds, 200, 250, 350 and 0-350 fps. I'm not sure if the variable speed versions can be locked on at lower speeds.
I bet a slower speed model with the optional table would fill the bill, albeit not too cheap.
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Dennis
Reply to
DT
This one from Penn Tools looks better than some:
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Seeing it has variable speed though I would strongly suspect it has a universal motor with brushes...
Reply to
Leon Fisk
The Penn Tools one looks pretty good. It looks similar to the smaller JET ones. I ordered a fairly cheap portable that comes with a chop stand, plus I'll try the speed control idea. At any rate, I know it will be more quiet than a chop saw for sure. I still think I might try adapting an induction motor to one at some point, but I didn't want to deal with it now. Kama makes one that does both vertical and horizontal, which is cool. But still the AC/DC motor though. Thanks for the ideas.
Reply to
Dave99
I guess there is a reason you are shunning the HF H/V band saw, but it seems to fit your criteria. It's on a stand, is fairly quiet, and turns itself off after the cut, to boot.
Reply to
Ronald Thompson
Thanks Ron... I actually did consider the horizontal. You're right, it does meet the quiet criteria. But it's not very portable. Plus, it's kind of overkill for most of the material we cut. Most of it is pretty light gauge stuff.
Reply to
Dave99
Well, the portable band saw/speed control idea didn't work too well. The saw itself was almost as noisy as a chop saw and on top of that, didn't cut straight worth a darn. The speed control works with other motors, but for some reason it didn't work well with the saw. It had to be turned almost all the way up, otherwise it would just stall and hum. Back to the drawing board.
Reply to
Dave99
How would it work if you got one of the HF 4x6 Band Saws and a Hand Truck. Leave the legs off the band saw and mount it to the hand truck. If you put the motor end towards the wheel side the center of gravity would be pretty low when moving it about. Just put the saw in the down position for transport and place a big rubber strap over it to keep it there.
You might have to do a bit of work/thinking to clear the motor housing when the saw is in the up position, but I think this would work. It would be relatively cheap and pretty portable with its own hand truck.
Reply to
Leon Fisk

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