Enerpac PR-Series, Electric Pow'r-Riser Lifting Jacks

How to Choose an Enerpac PR-Series Pow'r-Riser Jack

• Tonnage — the maximum rated load the jack will lift; choose a capacity above the heaviest weight bearing on a single point, never at or below it.
• Lowered (closed) height — the collapsed height of the jack; it must fit in the clearance under the load before lifting begins.
• Lift / stroke — how far the ram extends; confirm the stroke raises the load the full distance you need in one pass, or plan to crib and reset.
• Type — PR-Series jacks combine the cylinder and a built-in pump in one housing; the electric version runs off line power for repeated or extended lifts where an air supply is not practical.

Which Pow'r-Riser Is Right for the Job?

The deciding factor across the Pow'r-Riser family is the power source and the lift profile. These electric units suit shops and sites with line power that need controlled, repeatable lifting without dragging an air line; if your work area runs on shop air instead, the Enerpac PR-Series, Pneumatic Pow'r-Riser Lifting Jacks give you the same high-tonnage capability driven by compressed air. For lighter, portable jacking where a self-contained mechanical or hydraulic body is enough, compare the Enerpac GBJ Series Industrial Bottle Jacks or the Enerpac JH-Series, Aluminum and Steel Jacks. For vehicle and equipment support rather than load lifting, see Trailer Jacks, and browse the full Hydraulic Jacks range to weigh every option side by side.

Complete the System

A PR-Series jack carries its own pump, but most lifting jobs are part of a larger hydraulic setup. If you are building or expanding a multi-cylinder lift, pair separate Hydraulic Cylinders with dedicated Hydraulic Pumps rated to the 10,000 PSI Enerpac class, and add a Hydraulic Power Unit when you need to drive several cylinders or run continuous duty cycles. Sizing the pump, power unit, and cylinders to the same pressure class keeps the system safe and consistent under load.

Cross-Referencing an Obsolete Pow'r-Riser Jack

If the PR-Series jack on your equipment is discontinued or the model plate is no longer legible, the equivalent-part value matters more than the original number: we match the rated tonnage, lowered height, and stroke to a current jack that does the same work, so a retired unit does not idle your lift. As a hydraulics distributor and repair shop serving the trade since 1963, we keep cross-reference data on legacy Enerpac jacks and can confirm a current substitute against the dimensions and capacity you actually need. Tell us the model, the tonnage, and the heights you are working with and request a cross-reference.