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Recent content by VPOW

  1. VPOW

    Torsion spring - arm angle ???

    hi there, Thank you for your reply. These are the test result. We used force gauge to determine how much force it required for the clamping jaw to open when clamping a 20mm/43mm object. Hence 9.2, 6.2 ,11 and 11.5 are the force. Both spring are identical ie the OD, the coil and the wire...
  2. VPOW

    Torsion spring - arm angle ???

    Hi there, The specification of both spring are the identical apart from the spring arm. Hence when we conducted spring load test. As shown in the image below. Spring A has more spring clamping force on 20mm object as compare to spring B. Both are installed on the same spring clamp housing...
  3. VPOW

    Torsion spring - arm angle ???

    hi there, I re-post the images.
  4. VPOW

    Torsion spring - arm angle ???

    hi there, I have attached two torsion spring image. My understanding, to get optimum spring force from the torsion spring, the angle between the spring arm is critical. I have spoken to spring a manufacture however not very helpful but i got confused. Apparent, it is not the long arm that...
  5. VPOW

    Torsion spring - force on clamp

    hi there, I am trying to work out the force on a clamp design. The subject is a 20mm cylinder.I have the physical clamp and try physically measure the force by using a gauge. Hence what i measured is different to what i calculated. the gauge reads 10-11kg yet my cal only 5.9kg. The spring...
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