30 Ton Spring-Return Hollow Center Hydraulic Ram

• 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