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Parallel type electro-hydraulic actuator
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Beijing, China
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Hydraulic actuators convert hydraulic fluid pressure into linear or rotary motion, powering attachments and movements on crawler loaders, excavators, and industrial machines. They include cylinders, hydraulic motors and integrated valve assemblies in various sizes and stroke lengths. Buyers look at rated pressure, flow compatibility, mounting style, seal materials and service history. Used actuators can save money if inspected for leaks, corrosion and rod or port wear.
Match rated pressure, maximum flow, stroke length, mounting points and rod diameter to your loader’s specs. Check OEM part numbers and application loads (force/speed). Material and seal type matter for environment and duty cycle.
Look for external leaks, pitted or scored rods, bent rods, corrosion, smooth piston movement, intact ports and seals, and any weld repairs. Ask for pressure/test records and service history.
Drain and cap ports, protect and lock rods to prevent extension, pack on pallets or in crates, brace against movement, and use a carrier experienced with heavy hydraulic components. Insure the shipment and include condition photos.
Maintain clean hydraulic fluid and filters, monitor seals, replace worn seals and bearings, and cycle-test under pressure. Life varies by duty and maintenance—properly cared-for units may last many years, while neglected ones fail quickly.