Posted 11/17/2012 21:48 (#2702987 - in reply to #2702917) Subject: Re: dairy parlour door openers
Faunsdale, AL
If you have air in the parlor for gates etc, use air. If you have an old hydraulic cylinder around, you can use that or purchase one. Can use a system of cables and pullies or levers and links to multiply the motion of the cylinder if need be. Needs to be a double acting cylinder and have a 4 way valve to control it.