Design Essentials: Synchronize Position and Force with an Electro-Hydraulic Motion Controller (.PDF Download)

Hydraulics is great for lifting heavy loads and applying large amounts of force, but the same power that is required to exert a large amount of lifting or compression force can also do damage or produce waste if not controlled. A sawmill in British Columbia used a pair of 31-ft.-long hydraulic cylinders to operate a carriage that lifts log bundles into the mill, but the lifting carriage occasionally sustained damage by the hydraulic cylinders moving at different rates of speed.

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