RRH hollow plunger cylinders

RRH Series are double-acting steel cylinders with a hollow plunger. They provide a faster and more controlled plunger return. They are finished with an external enamel coating. Collar threads and base holes are available as standard, making installation easier. Key features:

• Relief valves prevent damage in case of excessive pressure
• Baked enamel finish for increased corrosion resistance
• Threaded collars facilitate installation (except for models RRH-1001 and RRH-1508)
• Nickel-plated finish of the inner slide sleeve ensures greater durability
• Hollow plunger design allows for both pull and push forces
• All models are equipped with CR-400 couplers with dust caps
• Plunger wiper seal reduces contamination and extends cylinder life.

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Enerpac RRH hollow plunger cylinders

Enerpac RRH series cylinders are double-acting steel hydraulic cylinders with a hollow plunger. This design allows for both pushing and pulling forces, making the RRH series ideal for demanding assembly, service, and industrial work. :contentReference[oaicite:0]{index=0 }

RRH cylinders for pulling and pushing

The hollow plunger allows a rod or cable to be passed through the center of the cylinder, increasing the device's application possibilities. Thanks to double-acting operation, plunger return is faster and more controlled than in single-acting designs. :contentReference[oaicite:1]{index=1 }

• series: Enerpac RRH,
• construction: steel,
• operation: double-acting,
• plunger: hollow,
• push and pull force capability,
• application: assembly, service, and industrial work.

Key features of Enerpac RRH cylinders

RRH cylinders are designed for durability and heavy-duty performance. The manufacturer uses, among other things, relief valves to protect against excessive pressure, a baked enamel coating for increased corrosion resistance, and a nickel-plated inner slide sleeve to improve the durability of working components. :contentReference[oaicite:2]{index=2 }

Collar threads and mounting holes in the base facilitate the installation of the cylinder in machines and technological stations. Exceptions are the RRH-1001 and RRH-1508 models specified by the manufacturer. :contentReference[oaicite:3]{index=3 }

What are center hole cylinders used for?

RRH hydraulic cylinders can be used for tensioning, pulling, pressing, extracting, and other tasks requiring high force transfer. The hollow plunger facilitates work with rods, pins, and cables passing through the cylinder axis.

The RRH series is used in heavy machinery service, industrial plants, assembly work, and for handling structural and mechanical components.

Enerpac RRH models available at HYDRON

This category includes models with various capacities and strokes, such as RRH-1006, RRH3010, RRH307, and RRH6010. This allows you to select a cylinder for the required load and range of operation. :contentReference[oaicite:4]{index=4 }

All RRH series models are equipped with CR-400 couplers with dust caps. The wiper seal reduces the ingress of contaminants into the cylinder and helps extend its operational life. :contentReference[oaicite:5]{index=5 }

How to choose an Enerpac RRH cylinder?

When choosing, pay attention to the required force, stroke, installation conditions, and how the center hole will be used. It is also important to match the cylinder with the pump, hoses, and other components of the hydraulic system.

If you need a complete set, also check Enerpac tools and components available in the HYDRON offer.