Over the years, press assembly technology has evolved from simple hand-operated presses, which rely on the operator for control, to electro-mechanical presses, which internally control nearly every aspect of the pressing operation. With the advent of the electro-mechanical press (commonly referred to as a servo-press), the level of press control is now virtually unlimited. Electro-mechanical presses can be grouped into three main categories. They range from a basic servo-actuator, used to generate force, to a highly intelligent servo-press system, which provides force/distance feedback and closed-loop force control. To select the best electro-mechanical press for your assembly operation, you need to understand the important differences between the various press categories. Then, by comparing the differences in mechanical design and how the system controls and monitors both position and force during the pressing cycle against your specific needs, you will be able to select the right system.
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