|Forum topic by Chris||posted 01-19-2013 03:41 AM||1075 views||0 times favorited||3 replies|
01-19-2013 03:41 AM
I have a 12 VDC driven Dayton brand linear actuator that is designed to push a rather significant load. I purchased the linear actuator some time ago and it was purchased new. It has been in storage out of the elements and such for some time. I did notice that when i first tested it out immediately following that purchase that the piston rotated clockwise upon extension and counter-clockwise upon withdrawal of the piston back into the housing. Maybe not in that exact direction I cannot recall, but the fact is that it ‘rotates’ when operated.
I had just retrieved the Dayton actuator from its hiding spot a few weeks ago for I had a gentleman that was interesting in purchasing it. I simply never used it for what it was that I wanted to and never thought much about it. I had assumed since it was new upon purchase that the actuator was designed to do this and would lock up and push in and out -straight when placed under a load or the end of the piston was fixed. Of course, you cannot hold same with the human hand to achieve this.
So it was, the guy thought I was trying to pull the wool over his eyes when I mentioned this aspect. He decided never to purchase it and thus has got me wondering. Is this the typical operation of these actuators, i have dealt with hydraulic and pneumatic pistons quite often, in my time but just never dc voltage driven linear actuators. So I am really unfamiliar with whether or not this is normal for them? I thought he being much more my elder, consolidated with the fact that he portrayed to know so much about linear actuators that he might just know what he was talking about. Thus, i began to doubt my original assumption of its operation.
Can anyone advise?
-- Chris Harrell - custom callmaker "Quacky Calls" Eastern NC. http://www.quackycalls.com