[TheForge] Hydraulic Press Control

[Larry]

I don't know if they have anything that will help here, but, Omega
(www.omega.com ) makes a wide variety of data acquisition systems including
flow and pressure transducers, along with controllers to use with the data.

Larry

Ed Fasula wrote:

> We had a thread going here about building a hydraulic press.  I'm getting
> materials together to build it, but I also want to use electronic
> controls.  In the UMBA tape mentioned Keith Johnson demonstrates an
> automatic control setup to repeatedly stroke the cylinder.
>
> To set the force, I think Keith used an adjustable pressure relief
> valve.  He didn't detail how he controlled the repeat cycle.  I would guess
> that he had a flow sensor on the relief valve outlet which worked with a
> solenoid valve and an adjustable timer.
>
> I was thinking that the same could be achieved with a pressure sensor
> replacing the relief valve and flow sensor.
>
> Also, I don't know why he doesn't use an electric switch to control his
> solenoid valve when in manual mode instead of the mechanical valver.
>
> Has anyone got advice on how to do this and where to get the stuff?  I have
> a spring center open solenoid valve already.
>
> Thanks,
> Ed