With an increasing demand for lightweight, more portable tools, Enerpac has developed the RACH- and RARH-series aluminum hollow plunger cylinders.
These up-to-150-ton capacity cylinders provide engineers with a lighter, more portable tool for applications such as tensioning, pulling, and pull testing.
Enerpac is a global market leader in high-pressure hydraulic tools, controlled force products, portable machining, on-site services, and solutions for precise positioning of heavy loads. As a leading innovator with a 110-year legacy, Enerpac has helped move and maintain some of the largest structures on earth.
The RACH-Series Single-Acting Aluminum Hollow Plunger Cylinders (sometimes called center-hole cylinders) have a threaded collar inside the plunger, allowing attachments or threaded rods to be connected to the hydraulic cylinder. They provide a lighter alternative to other tensioning and pulling systems. The RACH-Series includes cylinder capacities ranging from 20 to 150 T and two to 10 inches of stroke. All RACH-Series cylinders are rated for up to 10,000 psi.
RACH-Series cylinders are single-acting and use a high-strength return spring for rapid retraction. All are equipped with bolt-on, hardened steel saddles and a steel base plate for increased durability. Combined with a lightweight Enerpac hand pump, engineers now have a highly portable tension and pulling toolset for remote working.
For an even quicker and more controlled retraction, the RARH double-acting models are available. Featuring the same advantages as the RACH, they are more lightweight due to their lower collapsed height.
“The Enerpac RACH-Series offers outstanding durability; their design enables longer service life and increased push/pull capability,” explained Senthil Vijayakumar, the Cylinder Product Manager at Enerpac. “Hollow shafts offer great versatility in pulling and tensioning applications, which, combined with the lighter weight of aluminum, provides the perfect tool with a longer service life and reduced maintenance. All of which means that users can confidently take on the most demanding tensioning and pulling applications with the RACH- and RARH-series cylinders.”
Typical applications for the RACH- and RARH-Series include rod and cable pulling and tensioning, rock-bolt testing, as well as shaft removal. All the cylinders are compatible with a broad range of pumps, from the economical hand pumps to the most sophisticated split flow pumps and the Enerpac EVO-Series synchronized lifting systems.
For more information on these cool tools, visit www.enerpac.com.
