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post #1 of 8 (permalink) Old 10-25-2009, 10:32 AM Thread Starter
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Default RPM Question

Hi Folks,

I've been looking at several portable 10 inch table saws. Some motors are listed at 3600 rpms others at 4000 rpms and another at 5000 rpms. Should I be concerned with this spec? They are all 15 amp 10 inch table saws. Brands like Ridgid, Bosch, Dewalt and Sears.

Thanks in advance.

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post #2 of 8 (permalink) Old 10-25-2009, 11:27 AM
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The Bosch 4100DG-09 is one of the best portables, but is a little pricy for a portable. The Ryobi BTS21 is the best bang for the dollar. I look at power more than the RPM. Time is money, you want a saw that isn't going to bog when ripping a 2x. If you are planing on taking this saw on job sites, you don't want a high end saw. Better to be out $250 than $800. 3600 seems a little slow, but I have never used one that slow so I can't really say.

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post #3 of 8 (permalink) Old 10-25-2009, 11:54 AM
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Welcome to the RouterForums Burt.

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post #4 of 8 (permalink) Old 10-25-2009, 12:18 PM
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The RPM may be related to the motors torque rating, which rarely if ever gets a mention in the specs.

My 10" Delta cab saw is 3400 something rpm where my portable Mak is 4600 something rpm.

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post #5 of 8 (permalink) Old 10-25-2009, 01:59 PM
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The slower the speed, the rougher the cut will look.


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post #6 of 8 (permalink) Old 10-25-2009, 02:48 PM
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Greetings and welcome to the router forum.

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post #7 of 8 (permalink) Old 10-27-2009, 08:14 AM
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Hi Burt. Welcome to the group. RPM ratings are sometimes given for the motor and a separate spec for the blade. The blade speed for many table saws is ~4200RPM. You may be able to download user's manuals for the saws in question from the manufacturers' websites to verify this.
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post #8 of 8 (permalink) Old 10-27-2009, 08:20 AM
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The motor rpm can be anything. Different sized pulleys are used to get the blade speed.

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