Enerpac Hydraulic Single Acting Cylinders - High Tonnage
Free Shipping at $199+!Enerpac 79.5 Ton Hydraulic 6.13" Single-Acting General Purpose Cylinder RC756In-Stock Ships Quickly According to Your Carrier SelectionSKU: ENP-RC756$4,81625
Enerpac Hydraulic Single-Acting Cylinders, Spring-Return Rams, & RC Series Jacks
Basing industrial lifting rigs or structural shoring grids on unrated hydraulic knockoffs is an easy way to cause sudden pressure dropouts, ruined tool seals, and severe jobsite safety hazards. When you are lifting massive bridge spans, tensioning steel tendons, or pushing structural foundations into square, you cannot afford to risk mechanical fluid drift under full load constraints. Upgrading to genuine Enerpac hydraulic single-acting cylinders changes your rigging security entirely. Rated for strict 10,000 PSI commercial thresholds, these premium heavy-duty jacks deliver unyielding unidirectional force, rapid spring retractions, and industry-standard reliability across complex industrial tracks.
RC-Series TRIO Design: The Global Baseline for General-Purpose High Force
For everyday field maintenance, factory presses, and heavy construction lifts, the legendary Enerpac RC-series cylinder line remains the unyielding global trade benchmark. Built to withstand punishing, high-cycle workloads, modern RC-series rams are engineered around a specialized internal bearing system. This unique design incorporates hardened composite wear bands and reinforced stop rings to maximize side-load resistance. This added durability ensures the inner solid plunger moves fluidly under uneven weight loads without scuffing the steel cylinder barrel or locking up mid-stroke.
Pre-Tensioned Spring Retraction: Quick Resets with No Fluid Line Clutter
Single-acting hydraulic cylinders utilize a highly efficient fluid layout that maximizes portability while minimizing your setup hardware footprint. Because these tools feature a single high-pressure fluid port, oil is only pumped in to actively drive the extension stroke. To return the cylinder back down, Enerpac embeds a high-strength, pre-tensioned hybrid steel spring network inside the plunger housing. The instant you bleed pressure back into your manual pump reservoir, the internal spring pulls the heavy plunger down smoothly, speeding up your cycle resets without the added clutter of secondary return hoses.
Collar Threads and Modular Fixturing Built for Demanding Industrial Pressing
Matching your specific hydraulic stroke length and tonnage profile directly to your structural layout math is how you protect project margins and guarantee site compliance. Enerpac single-acting cylinders are precision-machined with high-strength collar threads, plunger threads, and base mounting holes across the majority of their catalog. This modular layout allows mechanics, millwrights, and automation technicians to screw the ram directly into heavy workshop H-frame fixtures, custom alignment jigs, or stationary stamping presses with absolute structural control.
Why Source Enerpac High-Pressure Cylinders from Ohio Power Tool?
On a critical plant shutdown or structural heavy lift project, a blown quick-coupler or a scratched plunger rod stops your field team instantly and causes expensive downtime penalties. As an authorized elite distributor for genuine Enerpac tools, Ohio Power Tool carries a comprehensive regional stock of standalone single-acting rams, pre-configured pump-and-cylinder toolsets, braided high-pressure hoses, and replacement couplers. Sourcing through our commercial inventory guarantees your fleet investments are completely authentic and covered by full factory protections. Shop online or visit our Columbus showroom to pick up your gear.
Enerpac Single-Acting Cylinders FAQ
What exactly does single-acting mean when evaluating an Enerpac hydraulic cylinder?
The term single-acting defines how hydraulic fluid is directed inside the tool body to move the plunger piston:
- Extension Stroke: High-pressure hydraulic fluid is pumped into a single internal port, forcing the solid steel plunger outward to exert massive pushing or lifting power.
- Retraction Stroke: The tool features no secondary fluid lines to pull the piston back. Instead, once you open the pump's release valve, a heavy-duty internal spring assembly (or the physical weight of the load itself) forces the fluid back out of the cylinder into the pump reservoir.
How does the Enerpac TRIO bearing system prevent early cylinder failures under uneven loads?
When a heavy load shifts slightly off-center on a jobsite, it exerts an intense sideways twisting force called a side-load. On a standard cylinder, this side-load pushes the metal plunger hard against the interior wall, which quickly scores the steel and tears the main seals. Enerpac's advanced TRIO bearing system utilizes hardened composite wear bands alongside an upgraded stop ring inside the cylinder head. This layout absorbs eccentric side-stresses cleanly, fully preventing metal-on-metal friction and plunger top-end mushrooming.
Can I safely operate a single-acting Enerpac cylinder using a double-acting fluid pump?
Yes, you can run a single-acting cylinder with a double-acting pump, but you must block off the secondary port on the pump valve. A double-acting pump features two active fluid outlets meant to push oil into both sides of a dual-port cylinder alternatingly. To run a single-acting tool safely, you run a single high-pressure hose from the pump's advance port to the cylinder, and install a rated steel pipe plug directly into the pump's unused return port to prevent pressurized oil from spraying out during the cycle.
What is the purpose of the collar threads and plunger threads on an RC-series general-purpose jack?
The high-precision external collar threads and internal plunger threads are designed explicitly to allow for secure, direct mounting into machinery and production fixtures. This allows engineering technicians, fabricators, and millwrights to bolt the cylinder solidly into custom H-frame workshops, mechanical stamping templates, bending tools, and heavy clamping assemblies, ensuring the ram remains perfectly aligned without slipping or twisting loose under full 10,000 PSI pressures.
What is a CR400 high-flow coupler, and is it standard across all Enerpac hydraulic cylinders?
The CR400 coupler is Enerpac's signature high-flow female quick-connect fitting, rated explicitly for extreme 10,000 PSI high-pressure safety thresholds. It comes standard on virtually every single-acting model in their inventory. It features a leak-resistant ball-check design that snaps tight into matching high-pressure braided hoses, and includes an impact-resistant rubber dust cap to block concrete dust, metallic grit, and water from fouling your closed fluid loop when uncoupled.
Why do Enerpac single-acting cylinders feature removable grooved saddles on the plunger tip?
The hardened, grooved steel saddle is an essential wear protection part. As the jack lifts heavy concrete blocks, steel machinery legs, or structural foundations, the grid-like pattern on the grooved saddle prevents the workpiece from sliding off the tip of the tool. Because it is completely removable, if the saddle eventually becomes worn down, nicked, or dented from heavy site work, you can easily pop it off and screw in a brand-new replacement saddle or a specialized tilt saddle without replacing the entire cylinder.
What simple field care keeps a spring-return hydraulic cylinder from retracting sluggishly?
Sluggish retraction is almost always caused by airborne dirt, sand, or concrete slurry settling on the exposed plunger while extended. When you retract the tool, that grit drags past the protective rubber wiper seal and gums up the internal bearing clearances. To prevent this, always wipe the steel plunger completely clean with a soft cloth before retracting it. Additionally, ensure your pump reservoir is fully filled; if a vacuum forms inside the pump container, it will fight against the cylinder's internal spring and slow down the return loop.
Where can I buy certified replacement seals, pre-set pump kits, and multi-cylinder manifolds?
As an authorized stocking commercial trade distributor and certified industrial high-pressure partner, Ohio Power Tool carries a comprehensive portfolio of rigging machinery. We keep deep regional field stock on Enerpac RC-series cylinders from 5-ton to 100-ton capacities, pre-packaged cylinder-and-hand-pump toolsets, high-pressure 10,000 PSI rubber hoses, split-flow manifold control blocks, and genuine factory repair seals to keep your active infrastructure and mechanical crews operating at peak capacity.