Details
- Spring-Return Hollow Center Hydraulic RamIdeal 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. Ram withstands full “dead-end” loads. Chrome-plated piston rods resist wear; and superior packings and seals provide high cycle life without leakage. Piston head inserts are inter-changeable for versatility; and tapped base mounting holes provide easy installation in fixed applications.
No. 4139Cylinder Capacity (tons): 30Stroke (in.): 2-1/2Retracted Height (in.): 6-1/4Extended Height (in.): 8-3/4Outside Diameter (in.): 4-3/4Piston Rod Diameter (in.): 3-1/4Center Hole Diameter (in.): 1-19/64Inches Between Base Holes: 3-5/8Insert Thread Size (in.): 2-3/4-12Collar Thread (in.): 4-3/4-12Thread Length (in.): 1-1/2Oil Capacity (cu. in.): 15.85Int. Pressure at Capacity (cu. in.): 9;457Tons at 10;000 PSI: 31.7Base to In
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