Originally Posted by tmaker  I made a 3 ram press to form 5/16 SS wire. I am using prox. switches to sequence them, IE push the button ram 1 goes until it sees the prox. ram 2 goes, than ram 3, than all retract. I have no repeatability, the rams will stop at different places or not stop at all and brake the pin that they are supposed to see, ( my bad 1 hour to repair). I don't know if it is a hydraulics problem or a controller problem? |
The rams will want to go full sroke everytime or until they encounter an opposing force of equal (or greater) force. How are the hoses connected to the Rams? Is there a manifold with 3 seperate valves, one for each ram?
Normally you would want to physically limit the rams travel to stop it exactely at the sametime every cycle. What ever you use to stop the ram has to be greater in force then the ram is capable of making or else it will bend/brake what it is pressing against.