Editing Machine press (section)

==An example of peculiar press control: servo-press==
A [[servomechanism]] press, also known as a ''servo press'' or an '''electro-press'', is a press driven by an [[alternating current|AC]] servo motor. The [[torque]] produced is converted to a linear [[force]] via a [[ball screw]]. Pressure and position are controlled through a [[load cell]] and an [[encoder (position)|encoder]]. The main advantage of a servo press is its low energy consumption; its only 10-20% of other press machines.

When stamping, it is really about maximizing energy as opposed to how the machine can deliver tonnage. Up until recently, the way to increase tonnage between the die and work-piece on a mechanical press was through bigger machines with bigger motors.<ref>{{Cite web|title = The science behind the servo press|url = http://www.thefabricator.com/article/stamping/the-science-behind-the-servo-press|website = www.thefabricator.com|date = 2008-01-15|access-date = 2016-02-03}}</ref>