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Slow 3100rpm Portable maximum table saw

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  • Doug G
    replied
    Originally posted by Byacey View Post

    Essentially a skilsaw strapped to the bottom of a TV tray.
    Does it come with a remote?

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  • Byacey
    replied
    Originally posted by stevem View Post
    it does have a universal motor, probably with a gear reduction same as circular saw, thats what makes them so loud
    Essentially a skilsaw strapped to the bottom of a TV tray.

    Leave a comment:


  • guylavoie
    replied
    Originally posted by Doug G View Post

    Another example of sloppy spec writing is they state it is a stationary machine, odd for a jobsite saw.
    Well that's probably stationary as opposed to being a power tool that you hold in your hand.

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  • stevem
    replied
    it does have a universal motor, probably with a gear reduction same as circular saw, thats what makes them so loud

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  • Doug G
    replied
    Originally posted by drzaius View Post

    Frequency doesn't matter to a universal motor, which I bet that saw has.
    Correct, I misread an article that limited speed to 3600rpm. It was referring to a synchronous motor.

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  • drzaius
    replied
    Originally posted by Leo Van Der Loo View Post

    The motor speed is probably for 50 and 60 cycle electricity, as that would normally be 1440 or 2880 for 50 cycles and 1725 or 3450 for 60 cycles, depending if it is a 2 or 4 pole motor.
    Frequency doesn't matter to a universal motor, which I bet that saw has.

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  • Doug G
    replied
    Originally posted by Leo Van Der Loo View Post

    The motor speed is probably for 50 and 60 cycle electricity, as that would normally be 1440 or 2880 for 50 cycles and 1725 or 3450 for 60 cycles, depending if it is a 2 or 4 pole motor.

    I'd guess a 2.5" output or 63.5 mm for the diameter of the outlet, as they use imperial measurements for the USA and Metric for the rest of the world.
    Probably right, the specs likely come from the manufacturer who may sell the saw somewhere in Europe, doubt Canadian Tire is selling many saws overseas I think it is just sloppy spec writing. The correct way to state it would have been to include the power supply frequency as you did and to state speed for each frequency not a range.I agree the correct diameter is likely 2.5". Another example of sloppy spec writing is they state it is a stationary machine, odd for a jobsite saw.

    Getting back to the speed issue, not sure if 3450 rpm is a problem. My Rockwell Delta 34090A table saw is direct drive(the blade mounts directly on the motor shaft) so it must be around 3450 rpm. It's the only table saw I have any experience with so don't know if a higher speed would make a difference. I checked but the manual doesn't state the speed. I see the Dewalt DW745 states the no load speed as 3850 rpm, so presumably it is not direct drive? I assume it has a gearbox?

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  • Leo Van Der Loo
    replied
    Originally posted by Doug G View Post
    Found the motor speed on the website under Specifications, No load speed range 2790 - 3410 RPM, not sure how you get a range of no load speeds but also doubt that the dust collector output diameter is 25 in? They seem to think it's important as they state it three times, 63.50 cm, 25 in and 635.00 mm. At least they got the imperial/metric conversion correct
    https://www.canadiantire.ca/en/pdp/m...?rrec=true#spc
    The motor speed is probably for 50 and 60 cycle electricity, as that would normally be 1440 or 2880 for 50 cycles and 1725 or 3450 for 60 cycles, depending if it is a 2 or 4 pole motor.

    I'd guess a 2.5" output or 63.5 mm for the diameter of the outlet, as they use imperial measurements for the USA and Metric for the rest of the world.

    Leave a comment:


  • Morningwood_01
    replied
    Originally posted by Doug G View Post
    Found the motor speed on the website under Specifications, No load speed range 2790 - 3410 RPM, not sure how you get a range of no load speeds but also doubt that the dust collector output diameter is 25 in? They seem to think it's important as they state it three times, 63.50 cm, 25 in and 635.00 mm. At least they got the imperial/metric conversion correct
    https://www.canadiantire.ca/en/pdp/m...?rrec=true#spc
    Lol didn’t even notice that!

    Leave a comment:


  • Doug G
    replied
    Found the motor speed on the website under Specifications, No load speed range 2790 - 3410 RPM, not sure how you get a range of no load speeds but also doubt that the dust collector output diameter is 25 in? They seem to think it's important as they state it three times, 63.50 cm, 25 in and 635.00 mm. At least they got the imperial/metric conversion correct
    https://www.canadiantire.ca/en/pdp/m...?rrec=true#spc

    Leave a comment:


  • Morningwood_01
    replied
    Originally posted by John Bartley View Post

    Ok, just to clarify ..... "direct drive" only means that there is no belt. With most of these saws, there is a gear reduction between the motor and the blade. Depending on the gearing between the motor armature and the blade mandrel, you can have more or less RPM at the motor and the same RPM at the blade.

    Just as an example ... the very similar looking Hitachi jobsite saw shows a motor rpm of 4500.

    Direct drive means direct drive anything but directly driven is indirect. A geared reduction would be indirect by nature of one gear driving another. You wouldn’t call a worm drive saw direct drive. I don’t believe any saws in the job site category are driven in the way you suggest. I have looked at every current one (Bosch dewalt metabo ridged skil kobalt and maximum) on the market now and with the exception of the skil every one is directly driven by the motor. Meaning the blade arbour is actually the motor shaft.

    back on topic. With the odd speed of the maximum I’ve decided against it. I would commend the appearance of the build quality though. The fit and finish and smoothness function (as much as you can tell in the store) is flawless.
    Again from in store viewing I would say the dewalt presents as the best. Kind of in its own category of feel, all the others seem to be basically the same with slight differences. But because of the cost I’ve decided on the metabo. Its just a newly branded hitachi, it’s on sale this week, and i really like all my other old hitachi tools.

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  • John Bartley
    replied
    Originally posted by Morningwood_01 View Post

    I had considered that, but since it appears to be direct drive like most saws in that portable catagory rpm for both would be the same.
    Ok, just to clarify ..... "direct drive" only means that there is no belt. With most of these saws, there is a gear reduction between the motor and the blade. Depending on the gearing between the motor armature and the blade mandrel, you can have more or less RPM at the motor and the same RPM at the blade.

    Just as an example ... the very similar looking Hitachi jobsite saw shows a motor rpm of 4500.

    Leave a comment:


  • Morningwood_01
    replied
    Originally posted by John Bartley View Post

    Thank you. I ask because they might have quoted "motor" rpm, not blade rpm and with the motor to blade gearing it may spin the blade faster or slower than the motor. It's hared to tell without seeing a parts list or the actual gearing unit.
    I had considered that, but since it appears to be direct drive like most saws in that portable catagory rpm for both would be the same.

    Leave a comment:


  • John Bartley
    replied
    Originally posted by Morningwood_01 View Post

    The first time I looked at the say I read the 3100 right on the box, it was a strange rpm and I started to doubt that I actually read it myself. So I hunted on the website and came up dry. So I actually went back to Canadian tire to look at it and it is for sure printed on the box 3100
    Thank you. I ask because they might have quoted "motor" rpm, not blade rpm and with the motor to blade gearing it may spin the blade faster or slower than the motor. It's hared to tell without seeing a parts list or the actual gearing unit.

    Leave a comment:


  • ZeroCool248
    replied
    I Have been using the Ridgid 10" Job site Table saw with the mobile stand now for about 8 months and it has done well. It has a 5000 rpm motor and the folding stand is sturdy.

    Leave a comment:

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