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  1. fareast

    Designing a rotating heated disc

    Why not use induction heating ?
  2. fareast

    Rotating Vacuum Manifold

    I used to work on high speed tobacco production machinery , and we used to use Carbon valves and transfers for the same job . These things are capable of working at high speeds and depression .Will advise when I recall the name of the manufacturer .
  3. fareast

    Switching motor from vfd to contactor while running.

    Without shunting , just try and stick a contactor on the output of a VFD and see how long it lasts . From my ltd experience , I have found that VFD's don't like their output disconnected whilst running , and if you try to do a controlled stop with ramp down and then change over to DOL , you will...
  4. fareast

    properties of air under pressure.... question

    I thought that boyles/charles law applied in these cases (there are one or two exceptions) Simply P1V1T1=P2V2T2 therefore if the change in volume is slow enough to allow the heat liberated to dissipate then you can apply boyles law and state that should the volume be reduced by half then the...
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