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    Discussion in 'Calculations' started by walker, Mar 16, 2015.

    1. walker

      walker New Member

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    3. Lochnagar

      Lochnagar Well-Known Member

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      Hi Walker,

      In the absence of having literature on this subject, you could take your office shredder, and measure the current draw to the motor as you put the maximum number of sheets through - and so you would get the input power. You could measure the speed of the paper going through the rollers - and / or - you could count the revolutions of the shredding drums - and from the radius of the drums you could compute the force and torque - now that you know the shaft power (allowing for some motor inefficiency). You could repeat this test for a smaller number of sheets, to get more graph points.
      So you have now got some relation between total paper thickness and power and torque and speed.
      Hope this helps.
       
    4. mymachineinfo

      mymachineinfo Member

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