Hydraulic cylinders, known for their high force at an affordable cost, have been widely used in automation equipment for decades. Electric rod actuators (cylinders) have become more flexible, precise and reliable with increasing force capacities. Advancements in electric rod actuators have created an ongoing debate over which technology offers the best overall solution for the same application. This paper will consider a variety of factors affecting the performance and cost of each technology including: motion control capabilities, system components, force capabilities, speed capabilities, temperature, life and maintenance of devices, data collection, efficiency/utility costs, leaks and environmental concerns, and more.
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