HHD Series Heavy Duty Hydraulic Cylinders

4 SERIES HHD • PRESSURE RATINGS CYLINDER CODE # (BORE INCHES) PISTON ROD DIAMETER (INCHES) PRESSURE RATINGS (PSI) FOR HIGHER PRESSURES CONSULT FACTORY STANDARD OVERSIZE 2:1 HEAVY-DUTY SERVICE 4:1 SAFETY FACTOR 15 (1 1/2) 5/8 1 3000 * 2000 20 (2) 1 1 3/8 3000 * 2000 25 (2 1/2) 1 1 3/8 1 3/4 3000 * 1950 32 (3 1/4) 1 3/8 1 3/4 2 3000 * 2100 40 (4) 1 3/4 2 2 1/2 3000 * 1900 50 (5) 2 2 1/2, 3 3 1/2 3000 * 1900 60 (6) 2 1/2 3, 3 1/2 4 3000 * 2000 70 (7) 3 3 1/2, 4, 4 1/2 5 3000 * 1850 80 (8) 3 1/2 4, 4 1/2, 5 5 1/2 3000 * 1900 100 (10) 4 1/2 5, 5 1/2 7 3000 * PRESSURE FOR F1 AND F2 MOUNTS (SEE PAGE 21) AND “PU3” MOUNTS (SEE PAGE 11) IS LOWER Φ 4:1 SAFETY FACTOR BASED ON FAILURE PRESSURES OF WEAKEST COMPONENT AND STANDARD ROD SIZE 120 (12) 5 1/2 7 8 3000 140 (14) 7 8, 9 10 3000 160 (16) 8 9, 10 3000 180 (18) 9 10 3000 200 (20) 10 3000 240 (24) 11 3000 ROD DIA. RB RR RM 5/8 – 3/8 2 3/8 1 1/4 3/8 2 1/2 1 3/8 5/16 5/16 3 7/32 1 3/4 5/16 5/16 3 7/8 2 5/16 5/16 4 BORE RA RB RC RD TIE ROD 10 5.291 3.775 NA NA 1 1/8-12 12 6.27 4.555 NA NA 1 1/4-12 14 7.485 6.143 4.409 NA 1 1/4-12 16 8.086 6.093 NA NA 1 1/2-12 18 9.589 7.910 5.761 NA 1 1/2-12 20 10.437 8.750 6.649 NA 1 1/2-12 24 13.589 11.722 9.158 6.050 2-12 Specifications and prices are subject to change without notice or incurring obligations. FABCO-AIR, Inc., 3716 N.E. 49th Avenue, Gainesville, FL 32609 • www.fabco-air.com LARGE BORE TIE ROD INFORMATION On large bore cylinders, two, three or four tie rods are used at each corner of the 10, 12, 14, 16, 18, 20 and 24 inch bore sizes. This reduces flexing of head and cap under pressure. HHD RETAINER INFORMATION HHD cylinders with the following bore and rod combinations use circular retain- ers which permit removal of rod cartridge without disassembling cylinder: 2 ½” bore with 1” rod 3 ¼” bore with 1 3/8” rod 4” thru 20” bores with all rod diameters HHD cylinders with the following bore and rod combinations use full plate retainer construction: 1 1/2” bore with 5/8" and 1” rods 2” bore with 1” and 1 3/8” rods 2 1/2" bore with 1 3/8" and 1 3/4" rods 3 1/4” bore with 1 3/4" and 2” rods Note: Certain small bore cylinders have full plate retainers which means the RR is not applicable. Use "F" dimension instead of "RR" Note: 2 1/2" and larger rod retainer rings are counter-bored so the socket head cap screws are not exposed. 12-7-16

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