Enerpac HCG-Series, High-Tonnage Cylinders

How to Choose an Enerpac HCG-Series High-Tonnage Cylinder

• Tonnage / working PSI — HCG cylinders run at the Enerpac high-pressure standard of 10,000 PSI (700 bar); pick a capacity that exceeds your worst-case load with margin, typically 20 percent or more.
• Bore — the effective piston area sets force at a given pressure; a larger bore delivers more tonnage per stroke for the same pump.
• Stroke (retracted / extended) — confirm the collapsed height clears your work envelope and the extended length covers the full travel the job needs.
• Rod (plunger) diameter — governs side-load tolerance and column strength; match it to the load path so the plunger is not pushed off-axis.
• Pin / mount size — verify base mounting holes, tilting saddle, and any clevis or plunger thread match your fixture so the cylinder seats square under load.
• Port (SAE / NPT) — confirm the coupler thread so the cylinder mates to your hose and pump without an adapter.
• Action (single / double) — HCG models are single-acting with spring or load return; double-acting work calls for a different series.

Which High-Tonnage Cylinder Is Right for the Job?

Reach for the HCG-Series when you need straightforward single-acting force for general pressing, lifting, and bending and gravity or the load returns the plunger. If your cycle must pull as well as push, or you need fast powered retraction, step up to the double-acting Enerpac HCR-Series, High-Tonnage Cylinders. For long-duration mechanical load holding where you want a collar to carry the load instead of trapped oil, choose the Enerpac HCL-Series, Lock Nut Cylinders. For lighter, lower-tonnage tasks, a general-purpose Enerpac RC-Series Single Acting Cylinders, 10000 PSI often fits, and where you need to pass a rod or cable through the center, a Enerpac RACH-Series Hollow Plunger Aluminum Cylinders is the right call. Not sure which capacity covers your load? Browse the full Enerpac High Pressure 10,000 PSI Cylinders range or send your numbers.

Complete the System

An HCG cylinder needs a 10,000 PSI power source and matching plumbing to run. Pair it with an Enerpac ZE-Series Electric Pumps sized for the oil volume your bore and stroke require, and connect it with Enerpac Hydraulic Couplers so the cylinder, hose, and pump mate leak-free at full pressure. Add a gauge and high-pressure hose rated to 10,000 PSI to complete a safe, repeatable setup.

Cross-Referencing an Obsolete Enerpac HCG-Series High-Tonnage Cylinder

If your old high-tonnage cylinder is discontinued or the casting number is worn off, the equivalent-part value is in the dimensions: tonnage, bore, stroke, collapsed height, and mounting. Give us the legacy model or those measurements and we will match a current HCG cylinder — or point you to the right HCR or HCL alternative — that drops into your fixture. Request a cross-reference.