Question regarding Linear actuator

Discussion in 'The Projects Forum' started by davis103, Jun 24, 2008.

  1. davis103

    Thread Starter Member

    Jun 9, 2008
    27
    0
    Hey everybody:

    I am planning to buy a linear actuator. I am not familiar with them. My question is: If i apply voltage to it and extended to a desired position and then remove to supplied voltage, does it lock in that position even if i try to contracted?

    Second question is i want to make sure this actuator when one polarity is applied then it extends and if i apply the reverse polarity then it contracts.
    Am i correct?

    I appreciate all your information.
     
  2. davis103

    Thread Starter Member

    Jun 9, 2008
    27
    0
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    I used one from Saginaw with a 40" stroke. It stopped moving, but had no brake applied with power off.

    Find out who makes it and get the specs from the manufacturer.
     
  4. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    10:1 gear ratio suggest the actuator would at least be difficult to move when the power was off, but is no guarantee of "locking in place."
     
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