Need help choosing valves

[J_J]

You could take a hyd solenoid valve and add some trip switches, and do what you want.

A push button to start and lock the solenoid until the shaft pushed on an unlock switch.

Push the retract button to retract and get to the end and another switch to stop or cut voltage.

A couple of solenoid relays and a solenoid hyd valve and I believe this could be done.

The hyd circuit will need a relief valve to protect the hyd system.

A hyd pressure switch could cut the voltage.

A set of cyl in sequence would compress and then eject the bulk material.

 

[Downwesttexasway]

Made sense to me (I think :=) - basically, your eject cylinder is the "anchor point" for your compression cylinder - so after compression, the eject cylinder pushes on the compression cylinder's body and out comes the "brick" - then both collapse, and start a new cycle.

At least, I THINK that's what you described... Steve

You got it!

 

[Downwesttexasway]

You could take a hyd solenoid valve and add some trip switches, and do what you want.

A push button to start and lock the solenoid until the shaft pushed on an unlock switch.

Push the retract button to retract and get to the end and another switch to stop or cut voltage.

A couple of solenoid relays and a solenoid hyd valve and I believe this could be done.

The hyd circuit will need a relief valve to protect the hyd system.

A hyd pressure switch could cut the voltage.

A set of cyl in sequence would compress and then eject the bulk material.

That's pretty much what I had/have using the closed center valves, but working with dirt and having all of the sensors/switches that would be required it just seems easier to go to manual valves.

The way it is now, if I had my power pack, I'd load, flip a switch to compress, open lid and flip a switch to eject, flip a third switch to reset. With the power pack it was easy as it was a closed center system, it didn't care if flow was blocked as it would just bypass. Now using the tractor's hydraulics it gets much more complicated.