coldpress

[fareez]

Dear all
I am developing an old hydraulic cold press machine ( which has a directional valve for pressing and a remote valve ) and I need to inverse the pressing method by inserting the mould above ( over ) the piston instead of under it , so the piston will press the mould while going up instead of pressing it while going down. Is there any problem/ damage that may happen to the piston ?
Thanks a lot
Fareez

[boslab]

You get a little bit less pressure pulling as the piston rod affects the area, other than that no difference
Mark