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Forum topic by BruceCM posted 05-26-2012 03:51 PM 3233 views 0 times favorited 7 replies Add to Favorites Watch
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BruceCM

11 posts in 1712 days


05-26-2012 03:51 PM

Just put together my Harbor Freight 14” Bandsaw. It has 4 blade speeds: 600, 1140, 1670 and 2670 FPM. The instruction book doesn’t seem to say what these speeds should be used for. Might someone have an idea of examples of what to cut at each speed? And which would be the best general use speed?

Thanks for any assistance

BruceM

-- cut once, measure once and......dam I'm good!


7 replies so far

View Bill White's profile

Bill White

4459 posts in 3428 days


#1 posted 05-26-2012 05:13 PM

http://vintagemachinery.org/math/sfpm.aspx
Check this site. Good info.
Bill

-- bill@magraphics.us

View MrUnix's profile

MrUnix

4247 posts in 1667 days


#2 posted 05-26-2012 05:26 PM

Required speed depends on what you are cutting and what blade you have on the machine. Typically, you will use the fastest speed for wood, and slower speeds for plastics and possibly soft metals like aluminum. The manufacturer of your blade should have a chart showing what speed to use for various materials.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

View AHuxley's profile

AHuxley

493 posts in 2789 days


#3 posted 05-26-2012 06:48 PM

If you are cutting wood just use the fastest speed. Small wheeled bandsaw still run a little slow for many wood cuts but it is a compromise that has to be made.

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longgone

5688 posts in 2776 days


#4 posted 05-26-2012 06:52 PM

The 2670 fpm is usually best for woods..just like a table saw or miter saw cuts best at a higher rpm. The slower speeds are best for metal, meat, plastics, etc.

View SCOTSMAN's profile

SCOTSMAN

5839 posts in 3053 days


#5 posted 05-26-2012 07:39 PM

To tell the truth most people I know including myself never or very seldom change speeds for woodcutting It is imperitive for metal to cut slowly of course but for wood set it to a speed you like then get cracking. have fun Alistair

-- excuse my typing as I have a form of parkinsons disease

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BruceCM

11 posts in 1712 days


#6 posted 05-27-2012 04:22 PM

Thanks for the feedback and link. Sounds like I need to keep in on the highest speed for all woodworking? But might one slow it down for either hardwoods or very thick cutting…or would speed matter based on hardness or thickness of cut?

And the speed link looks very interesting…but this model of HF 14” bandsaw (#67595) has 3 shaft pulleys…the motor, the intermediate (both with 4 different pulley sizes) and the end drive that connects to the lower wheel….so not sure how to convert this into two pulley equivalent.

BruceM

-- cut once, measure once and......dam I'm good!

View Bill White's profile

Bill White

4459 posts in 3428 days


#7 posted 05-27-2012 04:46 PM

Measure each pulley’s OD. then ya can figger the sfpm for each pulley set.
SFPM=surface feet per minute.
Bill

-- bill@magraphics.us

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