Servo control of hydraulics hasn't quite lived up to its promise in terms of widespread use of the technology. One big limitation: Its cost. In a recent Design News survey of users of hydraulics, 68% of respondents say that they would use servo if they could buy it for the same price as proportional control. Some other reasons for not servo'ing: Maintenance considerations (52%); complexity (26%); installation difficulties (19%); and filtration considerations (13%).
Linear guides are one of the most important components required for the development of automated or computer-controlled equipment. Aluminum profile extrusions, used for these guides in machine design, can enable designed-in functional features.
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