I am building several press, for sheet metal forming and trimming, we use a gear rack on each side with a set of gears on each side mounted on a shaft, turning on pillow blocks, that are bolted on your top plate, so it prevent the cylinders, from overridding each side, I have done it, by copying, someone else who is in the press building for 30 years, was a good challenge to understand, because my presses are running in the 20 to 40 tn range, which can be instant destuction on the first tryout.
Ironmann
