RR-Series Ultra-Precision Double-Acting High-Tonnage Hydraulic Cylinders

Why the RR Series is the Industry Gold Standard
Double-Circuit Efficiency
Experience the speed of Forced Hydraulic Return. By using a double-loop hydraulic design, these cylinders eliminate "hang-ups" and significantly reduce cycle times. Whether you are lifting a 10-ton machine or a 500-ton bridge section, you get smooth, synchronized motion in both directions.
Superior Long-Stroke Reach
Stop wasting time with constant resets. With strokes ranging from 50mm to a massive 400mm, the RR series provides the high-elevation reach required for major construction and deep-insertion tasks. It’s the perfect balance of "compact start" and "maximum finish."
Heavy-Duty "Barrier-Free" Construction
Anti-Jam Technology: Precision-ground piston surfaces and high-performance damping ensure the cylinder operates at full tonnage without sticking or stuttering.
Mechanical Safety Lock (RSC Models): Features a reinforced lock nut that allows you to mechanically secure the load once lifted—providing peace of mind for long-term support during maintenance.
Extreme Corrosion Resistance: Finished with a premium baked enamel coating, these jacks are built to withstand the salt air of shipyards and the harsh chemicals of industrial plants.
Professional-Grade Details
Dual ZG3/8" Fast Connectors: Equipped with threaded locking quick-couplers and heavy-duty dust caps to keep your hydraulic lines pristine and your connections leak-proof.
Green Dust-Ring Protection: A high-end sealing system that actively blocks grit and debris from entering the cylinder, drastically extending the tool's lifespan in dirty environments.
Hollow Plunger Versatility: The specialized hollow design allows for both push and pull forces, making it ideal for cable tensioning and bolt-pulling applications.
Built for the World's Toughest Jobsites
From Power Plants and Chemical Industry maintenance to Steel Mills and Construction Sites, the RR Series is the backbone of heavy lifting. With a capacity range covering 10T, 20T, 30T, 50T, and beyond, there is a specialized model for every high-stakes project.
Pro-Operation Insight
To unlock the full potential of these double-circuit powerhouses, always pair them with a Double-Circuit Electric Hydraulic Pump. This ensures the precise flow and pressure needed to manage the bidirectional movement of these professional-grade cylinders.