Enerpac SJ156 Screw Jack 3.75 Inch Stroke

Product Description

The ENERPAC SJ156 is a manual screw jack designed for controlled lifting, positioning, and load-holding applications in industrial and mechanical service environments. Operating on a mechanical screw thread rather than hydraulic fluid, it delivers precise vertical travel without a pump or hose connections. The SJ156 provides 3.75 inches of piston stroke with a plunger diameter of 2.875 inches and a screw diameter of 2.25 inches. At 10 pounds, it is compact enough for field use while offering the rigid load control that screw jacks are known for in maintenance and assembly work. Licensed mechanics, millwrights, and industrial maintenance technicians are the primary installers and operators of this tool.

The SJ156 is suited for shop floor maintenance, machinery alignment, structural support, and controlled lifting tasks where incremental height adjustment is required. Its bottle jack form factor fits standard positioning scenarios on flat surfaces. The mechanical screw design makes it appropriate for sustained load-holding without pressure loss, a common requirement in machinery installation and leveling work. It is used across manufacturing facilities, construction sites, and heavy equipment service operations.

Key Features

• 3.75 inch piston stroke for extended vertical travel range
• 2.875 inch plunger diameter provides a stable bearing surface under load
• 2.25 inch screw diameter supports consistent thread engagement throughout stroke
• Mechanical screw design holds load position without hydraulic pressure decay
• Compact bottle jack form factor at 10 pounds for portability in field service

Compatibility

Designed as an OEM-style replacement or direct-use screw jack for industrial lifting and positioning applications requiring a manual bottle-type screw jack configuration.

Installation Notes

Screw jacks should be installed and operated by qualified mechanics or millwrights familiar with safe lifting practices. Always verify the load rating before use and ensure the jack base is seated on a firm, level surface. Never exceed the rated capacity or work under an unsupported load. Applicable workplace safety standards and ASME B30 rigging guidelines should be followed during any lifting operation.