- Ideal for push/pull applications found in off-highway, construction, mining, and other industries where heavy equipment is maintained.
- Center hole permits extending screws, cables, etc., straight through the ram for versatility of application.
- Rams withstand full deadend loads.
- Chrome-plated piston rods resist wear, and superior packings and seals provide high cycle life without leakage.
- Piston head inserts are interchangeable for versatility, and tapped base mounting holes provide easy installation in fixed applications.
- Threaded Insert Number: 38904 (1-1/4"-7 Internal Thread Size)
Specifications:
- Cylinder capacity: 30 tons
- Stroke: 2 1/2 inches
- Retracted height: 6 1/4 inches
- Extended height: 8 3/4 inches
- Outside diameter: 4 3/4 inches
- Piston rod diameter: 3 1/4 inches
- Center hole diameter: 1 19/64 inches
- Inches between base holes: 3 5/8 inches
- Insert Thread Size: 2 3/4-12 inches
- Collar thread: 4 3/4 inches-12
- Thread length: 1 1/2 inches
- Oil capacity: 15.85 cubic inches
- Internal pressure at cap: 9,457 cubic inches
- Tons at 10,000 PSI: 31.7
- Base to inlet port: 1 5/32 inches
- Base mounting holes: 7/16 inch-20
- Cycle effective area: 6.34 square inches
- Weight: 25.6 pounds
- Non-stock item, available for manufacturer drop-ship.
OTC 4139 30 Ton Spring-Return Hollow Center Hydraulic Ram - 2-1/2" Stroke
