"Push-type" pneumatic counterbalances are utilized in presses that have up to an 180" R-L bolster area. In these presses, the counterbalances are mounted in the press uprights directly on the right-to-left centerline of the slide. Presses greater than 180" R-L utilize four, crown-mounted counterbalance cylinders to maintain seal alignment and maximize seal life. Neither push-type cylinders, nor crown-mounted cylinders are rigidly attached to the slide. Pressure can be quickly adjusted via the PMC Control to suit the weight of tooling being used.
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