Pneumatic And Hydraulic Equipment Page 1062

A SERIES-CONSTRUCTION 3 17 13 6 7 1 12 4 25 14 8 16 10 23 21 19 2 24 9 18 23 15 20 22 5 11 PARTS LIST ITEM QUANTITY NUMBER DESCRIPTION REQUIRED 1 HEAD 1 2 CAP 1 3 PISTON ROD 1 4 TUBE 1 5 TIE ROD 4 6 CARTRIDGE RETAINER 1 7 CARTRIDGE BUSHING 1 8 PISTON 1 9 CARTRIDGE RETAINER SCREW 4 * 10 TIE ROD NUT 4 11 PISTON ROD NUT 1 12 TUBE SEAL 2 13 CARTRIDGE BUSHING O-RING 1 14 PISTON PACKING 2 15 CUSHION PACKING - FRONT 1 16 CUSHION PACKING - REAR 1 17 ROD PACKING 1 18 ROD WIPER 1 19 CUSHION PACKING WASHER - REAR 1 20 CUSHION PACKING WASHER - FRONT 1 21 CUSHION PACKING RET. RING - REAR 1 22 CUSHION PACKING RET. RING - FRONT 1 23 CUSHION ADJUSTING SCREW 2 24 CUSHION ADJUSTING SCREW SEAL 2 25 CUSHION PISTON 1 Recommended Spare Parts *On 7" bore and up with 3" rod diameter and up, 8 cartridge retainer cap screws are used. TIE ROD TORQUE CHART TORQUE IN BORE FOOT POUNDS 1-1/8 8 1-1/2 8 2 15 2-1/2 15 3-1/4 25 4 25 5 50 6 50 7 110 8 110 10 200 12 200 14 300 1, 2 Heads, 6 Retainers, and 43 Mountings - The heads, retainers and mountings are machined from steel. The trunnion head, flanges and foot bracket mounts are bolted. Pivot and clevis mounts on 1-1/8" bore only, aIso are bolted. Side lugs, centerline lugs, and clevis (except 1-1/8" bore), are welded. Trunnions between heads, front head, and rear head mounts are machined from solid stock. All mounting holes are accurately machined for socket head cap screws. 3 Piston Rods - Piston Rods are high tensile steel, and hard chrome plated. Rods with piston rod diameters through 4" have a minimum expected yield of 100,000 psi and are case hardened to 50 Rockwell C. Rod diameters of 4-1/2" and larger have an expected yield of 50,000 to 60,000 psi depending on diameter. All rods are hard chrome plated for wear and corrosion resistance. Style 2 rod ends thru 2-1/2" rod diameter are high tensile studs. 4 Cylinder Tubes - Tubes are high tensile aluminum alloy tubing, hard anodized finish. The tube used on 10" and larger bore sizes is honed steel with hard chrome plated I.D. The tubes are mirror finished and sealed with static O-rings placed to completely eliminate extrusion. 5 Tie Rod Construction - For maximum strength tie rods are made of high tensile steel rods and prestressed to eliminate tube seal extrusion. 7 Rod Cartridges - Rod cartridges are long wearing and easily maintained. They are made of bearing bronze for long life and low friction. The cartridge is easily removed for replacement or maintenance of rod packing or rod wiper. In most cases the cylinder does not need to be dismounted, and rarely needs to be disassembled. Groove provided for ease of removal. Dual purpose O-Ring seals and maintains tension to prevent longitudinal cartridge motion. 8 Pistons - Pistons are made from fine grain alloy cast iron in a one piece piston design secured with self-locking nut. Piston faces are drilled and grooved and relieved for fast air flow to packings to eliminate blow-by and minimize break away. 14 Piston Packings - Piston packings are made of standard commercial Buna-N compound, in modified U-Cup shape for low friction. They are self adjusting and long wearing. 15, 16, 24, 25 Cushions - Cushions are positive sealing. The cushion pistons are hard chrome plated steel. Cushion pack- ings are Buna-N modified U-Cup which gives positive sealing during cushioning and free flow of air for rapid acceleration. No check valve is needed. Adjusting screw is O-Ring sealed with prevailing torque type of locking action. 17 Rod Packings - Low friction, long life. Rod packings are also made of standard commercial Buna-N compound, with modified U-Cup design that offers minimum friction and long life. It is self-adjusting to wear and pressure. 18 Rod Wipers - Rod wipers are efficient, and long wearing. They are furnished in commercial polyurethane compound as they are designed to wipe piston rod clean and dry in both directions, prevent foreign matter from entering cylinder and insure long life for piston rod, rod bearing and packing under all normal conditions. Ports - The ports are amply sized for most applications. SMALL CARTRIDGE RETAINER AS SHOWN IS STANDARD ABOVE 6 INCH BORE NFPA INTERCHANGEABLE STEEL HEAD PNEUMATIC CYLINDERS Sheffer cylinders (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com JHF Catalog [ Volume 7 ] 1062 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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