I'm currently working on a machine that will use 2 hydraulic cylinders. The machine has to automatically cycle (out then in) cylinder 1, then cycle cylinder 2, for as long as hydraulic power is applied.
I have been thinking about how to do this, but the only method I can think off would use 3 individual spool valves, but would require complex mechanisms to operate the spool valves.
I have tried searching the internet for suitable systems but have so far drawn a blank.
Ideally I want a system with a valve for each cylinder direction (ie. 4 valves), and each valve is triggered when the cylinder reaches the end of it's travel, which activates the next valve, for the next cylinder movement, and so on.
Is there a proper name for this kind of hydraulic circuit? I have tried searching for sequential and cascade circuits, but I don't know if these are the correct names.
Any help/suggestions would be gratefully recieved,
Moray