Enerpac SJ2012 Screw Jack 7 in Stroke 3.125 in Plunger

Product Description

The ENERPAC SJ2012 is a manual screw jack designed for heavy-duty lifting, positioning, and load-holding applications. Operating as a mechanical screw jack rather than a hydraulic cylinder, it delivers controlled, steady lift through a threaded screw mechanism. The unit features a 7-inch piston stroke and a plunger diameter of 3.125 inches, with a screw diameter of 2.875 inches. At 24 pounds, it is built for jobsite portability without sacrificing the load capacity expected from ENERPAC equipment. Millwrights, industrial maintenance technicians, and heavy-equipment mechanics rely on this type of jack for precise vertical adjustment and sustained load support.

The SJ2012 suits industrial maintenance, construction, and equipment alignment tasks where a controlled, ratchet-assisted or manual screw mechanism is preferred over hydraulic actuation. Typical applications include leveling heavy machinery, supporting structural loads during repair, and positioning large components during assembly or disassembly. It is well-suited for environments where a hydraulic power source is unavailable or impractical, making it a reliable standalone tool on the shop floor or in the field.

Key Features

• Screw jack design provides steady, controlled lift without hydraulic fluid or a pump unit
• 7-inch piston stroke accommodates a wide range of lift heights in a single setup
• Plunger diameter of 3.125 inches for stable load contact and distribution
• Screw diameter of 2.875 inches supports structural integrity under sustained load
• Compact and portable at 24 pounds for jobsite and field use

Compatibility

Designed as a direct-use manual screw jack for industrial lifting and positioning applications. Consult ENERPAC load rating documentation to confirm suitability for a specific application before use.

Installation Notes

Placement and operation should be performed by qualified millwrights or mechanical technicians familiar with load-bearing equipment. Always confirm the jack is positioned on a stable, level surface rated to support the combined load before applying lift. Inspect the screw threads and saddle for wear or damage before each use, and never exceed the rated load capacity of the jack. Applicable workplace safety standards and OSHA load-handling requirements should be observed at all times.