Enerpac SJ1512 Screw Jack 9.75 Inch Stroke Manual

Product Description

The ENERPAC SJ1512 is a manual screw jack designed for heavy-duty lifting and positioning applications. It operates on a mechanical screw-and-ratchet principle, requiring no hydraulic fluid or external power source. The SJ1512 delivers a 9.75-inch piston stroke, making it suitable for tasks that require extended vertical reach. With a plunger diameter of 2.875 inches and a screw diameter of 2.25 inches, this jack is built for stability under load. At 16 pounds, it is portable enough for field use while remaining robust enough for shop and industrial environments. Licensed tradespeople and maintenance professionals working in HVAC, mechanical, and industrial service settings rely on screw jacks like this for controlled, incremental lifting.

The SJ1512 is used in applications where precise mechanical lifting or load positioning is required. Common scenarios include equipment alignment, machinery installation, structural support during maintenance, and pipe or component positioning. The manual ratchet mechanism allows controlled advancement without power tools. This jack is appropriate for residential, commercial, and light industrial jobsites where portability and simplicity are priorities. Mechanical contractors, millwrights, pipefitters, and maintenance technicians are the primary users.

Key Features

• 9.75-inch piston stroke for extended vertical reach
• Manual screw-and-ratchet operation requires no hydraulic fluid or power source
• 2.875-inch plunger diameter provides a stable load-bearing surface
• 2.25-inch screw diameter supports load control and structural rigidity
• Compact footprint at 6.25 inches length and 2.88 inches width for confined-space access
• Portable at 16 pounds for field and shop use

Compatibility

Designed as a manual screw jack for general-purpose mechanical lifting and positioning tasks. Confirm load capacity and stroke requirements against the specific application before installation.

Installation Notes

Screw jacks must be placed on a flat, stable surface capable of supporting the intended load. Always ensure the base is fully seated and the load is centered on the plunger before advancing the screw. Mechanical contractors and maintenance technicians should follow applicable ASME and OSHA guidelines for lifting operations. Never exceed the rated capacity of the jack, and never use a jack as a permanent support without supplemental blocking or stands.