Enerpac RACH-series hollow plunger aluminum cylinders are single-acting hydraulic cylinders built with a through-hole bore that lets a tension rod, cable, or stud pass directly through the plunger center. That hollow design makes them the working tool behind tensioning, pulling, and stud-removal jobs where a solid-plunger ram cannot reach. Enerpac, a Milwaukee-based maker of high-pressure equipment since 1910, rates its hollow plunger cylinders to 10,000 PSI alongside its broader RCH single-acting and RRH double-acting hollow plunger families. If you are matching a discontinued part number or an aging RACH/RCH unit on the floor, we cross-reference Enerpac hollow plunger cylinders to current-production equivalents.
Selection comes down to capacity (tonnage), stroke, and whether the application needs the cylinder to return hydraulically or by spring/load. For a fuller picture of the cylinder range, compare against the broader Enerpac hydraulic cylinders catalog, which spans solid-plunger RC and RR families as well as hollow plunger variants. Pair the cylinder with a matched power source from Enerpac hydraulic pumps and rated Enerpac hydraulic hoses so the system holds the full 10,000 PSI working pressure. For lifting-only tasks that do not need a through-hole, review Enerpac hydraulic jacks; for accessories, gauges, and setup gear, see Enerpac hydraulic tools and the wider Enerpac hydraulic tools listings. Browse the full Enerpac brand page to confirm series and fit.
The fastest way to replace a hollow plunger cylinder is by exact tonnage, stroke, and collapsed height rather than the legacy part number alone, because Enerpac has consolidated older hollow plunger designations into the current RCH single-acting and RRH double-acting series. Send us the number stamped on the cylinder, a hand sketch with bore and stroke, or a photo of the nameplate, and we will identify a current-production Enerpac equivalent or a compatible alternative across our roughly 25 listings in this category. This is the same workflow we use for any obsolete or hard-to-source Enerpac line item. Request an Enerpac hollow plunger cross-reference to get a matched replacement.
25 Enerpac RACH-Series Hollow Plunger Aluminum Cylinders models · from $3,003.90 · all in stock
Browse all Enerpac High Pressure 10,000 PSI Cylinders →
Yes. Every Enerpac product we list is factory-new and genuine — not aftermarket or remanufactured. Item SKUs match the manufacturer part numbers, so you can verify any model directly against Enerpac documentation.
Yes — Northern Hydraulics has supplied hydraulic equipment since 1963. Call (800) 823-4937 with your application details, or send a quote request with the model you are replacing and we will cross-reference it to the right Enerpac part.
Yes. For multi-unit or recurring orders, use the Request a Quote button — volume pricing on Enerpac equipment is quoted case by case, usually within one business day.