Description
Freedom Hydraulics S51 – 5 Ton Single Acting Cylinder
The Freedom Hydraulics S51 is a compact single acting cylinder built to deliver 5 tons of hydraulic force with a 1.05″ stroke. Slightly taller than the S50, it provides increased lifting range while maintaining a small footprint—ideal for industrial maintenance, alignment, and pressing applications where both power and precision are critical.
Key Features
- Compact with Extra Stroke: Offers a full 1.05″ stroke while remaining portable and space-efficient.
- Industrial Steel Construction: Built for high-pressure use with a rugged steel body and chrome-plated piston rod.
- Bronze Bearings: Upper and lower bronze bushings minimize wear and extend cylinder life.
- Wiper Seal Protection: Keeps internal components clean and free of contamination.
- Spring Return: Single acting operation with an internal spring for automatic retraction.
- Threaded Saddle and Mounting: Includes internal piston threads and base mounting options for added versatility.
- Pre-Installed Port: 3/8”-18 NPTF female port for compatibility with standard hydraulic fittings.
Specifications
- Capacity: 5 Ton
- Stroke: 1.05 inches
- Collapsed Height: 4.35 inches
- Extended Height: 5.40 inches
- Effective Area: 1.1 in²
- Oil Capacity: 1.2 in³
- Outside Diameter: 1.5 inches
- Bore Diameter: 1.18 inches
- Plunger Diameter: 1.00 inch
- Base to Coupler Port: 0.79 inches
- Internal Piston Thread: 3/4″-16 UNF
- Piston Thread Length: 0.57 inches
- Base Mounting Holes: 1 hole, 1/4″-20 UNC thread, 0.51″ depth
- Collar Thread: 1-1/2″-16 UN, 1.1″ thread length
- Saddle Diameter: 1.0 inch
- Weight: 2.31 lbs
- Port Size: 3/8″-18 NPTF (inferred from model family)
Note: Cylinder only. Pump, couplers, and hydraulic accessories sold separately.






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