How do I calculate the force needed for a press machine?

The easiest answer is to contact a qualified press system manufacturer or engineer to get assistance. It is imperative that press machines are sized appropriately so as not to risk injury to operators or damage to components. Multiple technical factors all compile into a total force value, including material selection, surface friction, interference resistance, temperature, machining tolerances and even the speed of the press. In addition, part of a proper press force calculation relies on experience, such as with surface galling, thermal expansion and stress/strain impacts on the overall part.