The Enerpac RACH cylinder features a lightweight yet durable design which makes it easy to transport from one project to another.

Enerpac RACH and RARH Hydraulic Cylinders Aid Maintenance, Lifting and More

Aug. 14, 2023
The RACH and RARH Series aluminum hollow plunger cylinders feature a lightweight and portable design to aid with various lifting, tensioning and maintenance projects.

The RACH and RARH Series aluminum hollow plunger cylinders from Enerpac, also called hydraulic cylinders or center-hole cylinders, provide engineers with a lightweight, portable tool for lifting, tensioning and other applications. 

Features of the hollow plunger cylinders include: 

  • up to 150-ton capacity 
  • lightweight but durable design
  • hollow shafts for pulling and tensioning
  • compatible with a broad range of pumps.

Hydraulic Power Aids Range of Applications

The RACH and RARH Series aluminum hollow plunger cylinders provide engineers with a portable tool they can use for lifting, tensioning, pulling and pull testing, maintenance and other use cases. A tough aluminum construction provides a durable yet lightweight design which makes it easy to transport the hydraulic cylinders from one project to the next in construction, manufacturing and other applications.

The RACH model is a single-acting cylinder while the RARH is a double-acting model. Both hydraulic cylinders have the same features, though the RARH model provides quicker and more controlled contraction and is lighter in weight as it has a lower collapsed height. 

READ MORE: Hydraulic Cylinders Provide Muscle for Pipelaying

Each cylinder model features a threaded collar inside the plunger, allowing for attachments or threaded rods to be easily connected. Capacities range from 20 to 150 tons and 2-10 in. strokes. The cylinders are rated for up to 10,000 psi. 

A high-strength return spring in the hydraulic cylinders provides rapid retraction. 

These hydraulic cylinders can be used for rod and cable pulling and tensioning; rock-bolt testing; shaft removal and more. Both cylinder models are compatible with various pump types such as hand pumps and split flow pumps as well as Enerpac's EVO-Series synchronized lifting systems.  

About the Author

Sara Jensen | Technical Editor, Power & Motion

Sara Jensen is technical editor of Power & Motion, directing expanded coverage into the modern fluid power space, as well as mechatronic and smart technologies. She has over 15 years of publishing experience. Prior to Power & Motion she spent 11 years with a trade publication for engineers of heavy-duty equipment, the last 3 of which were as the editor and brand lead. Over the course of her time in the B2B industry, Sara has gained an extensive knowledge of various heavy-duty equipment industries — including construction, agriculture, mining and on-road trucks —along with the systems and market trends which impact them such as fluid power and electronic motion control technologies. 

You can follow Sara and Power & Motion via the following social media handles:

X (formerly Twitter): @TechnlgyEditor and @PowerMotionTech

LinkedIn: @SaraJensen and @Power&Motion

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