C20 SERIES. Cast Iron Pneumatic Cylinders Pressure Rating 200 PSI

Transcription

1 20 SRIS ast Iron Pneumatic ylinders Pressure Rating 200 PSI

2 onstruction BOR SIZS / 2 " THRU 0",2 Head and ap Fine grain, high tensile cast iron heads and caps are the finest that modern foundry skill can produce. They are machined to exacting standards. 3 Piston Rod Piston rods have a minimum expected yield of 00,000 psi. They are ground, polished, and hard chrome plated for wear and corrosion resistance. Four wrench flats are standard. 4 Tube The tube is a high tensile, special Aluminum alloy with a hard anodized finish. The file-hard finish offers long life and amazing lubrication holding properties. Also available in steel and fiberglass. 5 Tie Rods Maximum strength is obtained through a prestressed tie rod assembly. 9 Piston Pistons are machined from a fine grain alloy cast iron. They are of one piece design to give full thickness bearing and engineered for fast, positive inflation of seals. 6A ushion Insert Seals ushion insert sandwiched between the tube and head (or cap) is sealed with a pressure-activated O-RING (6A). 6B Tube nd Seals Static seals at tube ends are confined, precision cut gaskets. 8 Piston Seals Modified U-cup seals are Buna-N compound. They are self-adjusting to pressure and wear and their design permits simple replacement no need to disassemble the piston from the piston rod. 2 Rod Bearing The replaceable rod bearing is made of oil impregnated sintered bronze for lubricated long life. 24 Rod Wiper Synthetic wiper, steel encased, is designed to wipe off abrasive dust and contaminates on the retract stroke to insure long life for packings, rod bearing, and piston rod. This type of wiper is efficient, has low friction, and can be replaced without disassembly of the cylinder. 25 Rod Seal Modified U-cup design offers long life with minimum friction. It is self-adjusting to pressure and wear. Seal material is a standard Buna-N compound. The rod seal can be replaced without disassembly of the cylinder. 30 ushion Adjusting Screw Is O-Ring sealed and can be rotated to any position for easy accessibility. When shipped, cushion adjusting screws will be in positions and 5 (see PORT POSITIONS in Rod nds and Porting Page 7. A modified U-cup gives positive 33 sealing during cushioning and free flow of air for rapid acceleration out of cushion. No check valve is needed. 7, 72 ushions 20 Series cylinders can be ordered with no cushions, cushioned front, cushioned rear, or cushioned both ends B A

3 Parts List Parts List ITM QUANTIT NUMBR DSRIPTION RQUIRD HAD 2 AP 3 PISTON ROD 4 TUB 5 TI ROD 4, 6, 8 9 PISTON 3 TI ROD NUT 4 PISTON ROD NUT 6 A TUB SAL O-RING 2 6 B TUB SAL GASKT 2 8 PISTON SAL 2 2 ROD BARING 24 ROD WIPR 25 ROD PAKING 27 ROD PAKING SUPPORT WASHR 28 ROD PAKING RTAINING RING 29 USHION PISTON ** 30 USHION ADJ. SRW * 3 SAL USHION ADJ. * 33 USHION SAL FRONT * 43 USHION SAL RAR * 7 USHION INSRT FRONT * 72 USHION INSRT RAR * 2 LVIS PIN AND RTAINRS 7 INTRMDIAT TRUNNION Recommended Spare Parts *As required: specify if cushioned front, cushioned rear or cushioned both ends. **Used on all cushioned front cylinders. Used on cushioned rear cylinders bore sizes /2" and 2" only. As required depends on bore size and mounting. LVIS MOUNT 2 TRUNNION MOUNT 7 Theoretical Force in Pounds at Various Pressures (In PSI) FF- FF- TIV TIV ROD ARA ARA 50 PSI 80 PSI 90 PSI 00 PSI 50 PSI BOR DIA. PUSH PULL PUSH PULL PUSH PULL PUSH PULL PUSH PULL PUSH PULL /2 / / /2 5/ / /2 3/ / / / FOR DVLOPD ON PUSH STROK FOR DVLOPD ON PULL STROK F=AP F=(Ap-Ar) P Force (in lbs.) = Area of Piston (in sq. inches) times Pressure (in psi). Force (in lbs.) = Area of Piston (in sq. inches) less Area of Rod (in sq. inches) times Pressure (in psi). 20-2

4 Mountings LVIS FOOT AND FLANG MOUNTINGS LVIS MOUNT STL P D DIA. NPT NPT LR MIN. LAR B L MR X FOOT MOUNT STL F P NPT NPT A UL B BOLT XS GH T S Z O AJ FRONT FLANG MOUNT STL FF P NPT NPT F FB BOLT R BF ZB TF UF RAR FLANG MOUNT STL RF FB BOLT P NPT NPT R BF TF UF F ZF These dimensions are affected by addition of cushion. See hart on page

5 Mountings TRUNNION AND DOUBL ROD MOUNTINGS INTRMDIAT TRUNNION MOUNT STL T P NPT NPT UM * TA TB TD ZB T T XI MIN. XI MAX. TM TL DOUBL ROD ND LINDR FOOT MOUNT STL F SUFFIX D ZM + (2 X STROK) P NPT NPT A UL B BOLT XS GH T S Z O AJ DOUBL ROD ND LINDR FRONT FLANG MOUNT STL FF SUFFIX D ZM + (2 X STROK) P NPT NPT F FB BOLT R BF ZL TF UF DOUBL ROD ND LINDR INTRMDIAT TRUNNION MOUNT STL T SUFFIX D ZM + (2 X STROK) P NPT NPT UM * TA TB TD ZL T T XI MIN. XI MAX. TM TL These dimensions are affected by addition of cushion. See hart on page * For 4" and 5" Bores use BF dimension. 20-4

6 Dimensions IMPORTANT Trunnion Mount ylinder When ordering a Trunnion Mount cylinder, the XI dimension must be given to fix the position of the trunnion. The XI minimum is the shortest dimension that can be considered since it positions the trunnion right up against the head. When a cylinder is cushioned front, the trunnion would cover the cushion insert, allowing no access to the adjusting screw if the XI minimum dimension were specified. It is therefore recommended that, in such a case, the trunnion position be specified no closer to the head than the XI minimum plus the cushion insert thickness. The cushion insert thickness is given in the adjacent chart. The XI maximum is a dimension that, when added to the stroke, would place the trunnion tight up against the cap of the cylinder. If a cylinder is cushioned front, the cushion insert thickness should be added to determine that maximum dimension. If the cylinder is cushioned rear or cushioned both ends, it is not recommended that the thickness of the rear cushion insert be added to determine the maximum XI dimension, since that would position the trunnion over the cushion rear insert, and access to the cushion adjusting screw would not be possible. Double Rod nd ylinders When the rod ends of a double rod end cylinder are not to be the same, such as a style 3 on one end and a style 4 on the other, be sure to specify and to identify which end is which in relation to the flange if cylinder is a Front Flange Mount. Sheffer offers an extensive line of accessories to help facilitate mounting cylinders --See separate Accessories Brochure. HAD, AP AND TRUNNION ONFIGURATIONS IN BOR SIZS /2" THRU 0" Non-ushioned ylinder Dimensions BOR /2 2 2 /2 3 3 / AJ /4 5 /8 2 2 /2 2 7 / /4 5 3 / BF /8 2 7 /8 3 3 / /8 5 3 /4 6 5 /6 8 9 /2 /2 /2 /2 /2 /2 /2 /2 5/8 5/8 3/4 B 3 /4 3/4 3/4 /4 /4 /4 /4 /2 /2 /2 2 D /2 /2 /2 3/4 3/4 3/4 3/4 3 /8 L 3 /4 3 /4 3 /4 2 /2 2 /2 2 /2 2 /2 3 3 /4 4 / /8 2 7 /8 3 3 /8 4 4 /2 5 /2 6 5 /6 8 9 /2 A /8 2 7 /8 3 3 /8 4 5 /4 6 /2 6 5 /6 8 9 B /4 /4 5/6 3/8 3/8 3/8 /2 /2 5/8 5/8 3/4 /4 /4 /4 3/8 3/8 3/8 /2 /2 3/4 3/4 H 5 /8 O 3 /32 3/8 7/6 5/32 5/32 /2 9/32 5/8 /6 /6 3/ 6 T 5 /6 3/8 7/6 /2 /2 /2 5/8 5/8 /4 /4 F 3 /8 3/8 7/6 7/6 7/6 7/6 5/8 5/8 7/8 /4 FB /4 /4 5/6 3/8 3/8 3/8 /2 /2 /2 5/8 3/4 GH /2 5 /8 2 /8 2 /4 2 /2 2 7 /8 3 3 /8 3 5 /8 4 /8 4 5 /8 5 7 /8 LR 5 /8 5/8 3/4 /4 /4 /8 /8 3 /8 /4 /2 7 /8 /2 /2 5/8 3/4 3/4 3 /8 3 /8 3 /4 MR /2 /2 5/8 3/4 3/4 3/4 7/8 /8 3 /8 NA± P 5 /8 3 /4 7 / /8 2 /2 2 /2 2 5 /6 2 5 /6 3 3/ 6 R 3 /8 3 /4 2 /8 2 /2 2 7 /8 3 3 /4 4 3 /4 5 7 /8 6 3 / S 2 5 /8 2 3 /4 3 /8 3 /4 3 /2 3 /2 3 /6 3 /6 5 7 /8 5 7 /8 7 7 /6 TA /4 /2 3 /4 2 /8 2 3 /8 2 3 /4 3 /4 4 4 /2 5 TB 2 /2 3 3 /2 4 /4 4 3 /4 5 /2 6 / TD 3 /8 3 /8 3 /8 T 9.40 TF 2 5 / /8 4 /4 4 7 /8 4 /2 5 /2 5 7 /8 6 3 / TL 3 /8 3 /8 3 /8 TM 2 /2 3 3 /2 4 /4 4 3 /4 5 /4 6 /4 7 5 /8 8 3 /4 9 3 /4 TT /4 /2 /2 /2 /2 /2 /2 3 /4 3 /4 3 /4 UF 3 /4 3 5 /8 4 3 /8 5 /8 5 3 /4 5 3 /8 6 /2 6 5 /6 8 9 UL 2 /2 2 3 /6 3 9 /6 3 5 /6 4 /2 5 3 /6 6 /4 7 /8 8 /8 9 /8 UM 4 /2 5 5 /2 6 /4 6 3 /4 7 /4 8 /4 0 3 /8 /2 2 /2 X 3 7 /8 4 4 /6 4 3 /4 4 3 /4 4 3 /6 5 /8 5 /8 6 /8 7 /8 8 7 /8 XI MIN. 2 9 / / / / / /8 2 3 /4 2 7 /8 3 /4 3 /4 XI MAX. 23 /32 9 /32 23 /32 25 /32 25 /32 5 /6 2 /4 2 /8 2 /6 2 /6 XS /6 5/8 /2 /2 3/8 7/32 2/32 2/32 /32 /32 /8 3 /6 /8 /8 /8 /8 7 /32 /4 /4 /2 /2 5 /6 ZB 3 /4 3 3 /8 3 /2 3 /6 3 /6 3 5 /6 4 3 /8 4 3 /8 5 /4 5 /4 6 3 /6 Z 3 23 / /4 4 /6 4 7 /32 4 / / /6 4 3 / / / /8 ZF 3 5 /6 3 7 /6 3 9 /6 3 3 /4 3 3 /4 4 /6 4 7 /6 4 7 /6 5 5 /6 5 5 /6 6 5 /6 ZL 3 /2 3 /2 3 5 /8 3 3 /4 3 3 /4 4 /6 4 /2 4 /2 5 5 /6 5 5 /6 6 5 /6 ZM /8 4 /4 4 /4 4 9 / /6 5 5/ 6 7 /6 Dimensions for ushioned ylinders Adding a cushion or cushions to a cylinder increases overall length. A front cushion or a rear cushion adds " to all plus stroke dimensions for /2", 2", 2 /2", 3", 3 /2" and 4" bore sizes. For 5", 6", 7", 8" bore sizes, /4" is added and 0" bore sizes, /2" is added. The chart below shows dimensions for a cylinder cushioned either front or cushioned rear. See column at left titled IMPORTANT for information on cushioned trunnion cylinders. ushioned ither Front or Rear BOR /2 2 2 /2 3 3 / P 2 5 /8 2 3 /4 2 7 / /8 3 3 /4 3 3 /4 4 3 /6 4 3 /6 5 5 /6 S 3 5 /8 3 3 /4 4 / 8 4 /4 4 /2 4 /2 4 5 /6 4 5 /6 7 /8 7 /8 8 5 /6 X 4 7 /8 5 5 /6 5 3 /4 5 3 /4 5 3 /6 6 3 /8 6 3 /8 7 3 /8 8 3 /8 0 3 /8 ZB 4 /4 4 3 /8 4 /2 4 /6 4 /6 4 5 /6 5 5 /8 5 5 /8 6 /2 6 /2 8 5 /6 Z 3 /4 Z 4 23 / /4 5 /6 5 7 /32 5 / / /6 6 7 / / / /8 ZF 4 5 /6 4 7 /6 4 9 /6 4 3 /4 4 3 /4 5 /6 5 /6 5 /6 6 9 /6 6 9 /6 8 7 /6 ZL 4 /2 4 /2 4 5 /8 4 3 /4 4 3 /4 5 /6 5 3 /4 5 3 /4 6 9 /6 6 9 /6 8 3 /6 ZM /8 5 /4 5 /4 5 9 /6 6 /4 6 /4 7 3 /6 7 3 /6 8 7 /6 ushioning a cylinder on both ends adds 2" to all plus stroke dimensions in /2", 2", 2 /2", 3", 3 /2" and 4" bore sizes. For 5", 6", 7", 8" and 0" bore sizes, 2 /2" is added. See hart below for cushioned both ends dimensions. See column at left for information on cushioned Trunnion Mounts. ushioned Both nds BOR /2 2 2 /2 3 3 / P 3 5 /8 3 3 /4 3 7 / / /6 5 7 /6 6 3 /6 S 4 5 /8 4 3 /4 5 /8 5 /4 5 /2 5 /2 6 3 /6 6 3 /6 8 3 /8 8 3 /8 0 7 /6 X 5 7 /8 6 6 /6 6 3 /4 6 3 /4 6 3 /6 7 5 /8 7 5 /8 8 5 /8 9 5 /8 7 /8 ZB 5 /4 5 3 /8 5 /2 5 /6 5 /6 5 5 /6 6 7 /8 6 7 /8 7 3 /4 7 3 /4 9 3 /6 Z 5 23 / /4 6 /6 6 7 /32 6 / / /6 7 5 / / /32 3 /8 ZF 5 5 /6 5 7 /6 5 9 /6 5 3 /4 5 3 /4 6 /6 6 5 /6 6 5 /6 7 3 /6 7 3 /6 9 5 /6 ZL 5 /2 5 /2 5 5 /8 5 3 /4 5 3 /4 6 / /6 7 3 /6 9 7 /6 ZM /8 6 /4 6 /4 6 9 /6 7 /2 7 /2 8 7 /6 8 7 /6 0 3 /6 20-5

7 Model Number OMPOSITION FF 25 W Bore ylinder Series Mounting Stroke ushion Modification As Required Use Fractions Where Required A AA LA LH 20 HH MA MH Heavy Duty Pneumatic 200 PSI Pneumatic Heavy Duty Pneumatic Heavy Duty, 250 Pneumatic/ 500 Hydraulic Heavy Duty Pneumatic, ast Iron Heavy Duty Hydraulic Medium Duty Pneumatic Medium Pressure Hydraulic Listed Below As Required Use Fractions Where Required Shown as Gross Stroke Including Dual Piston or Stop Tube Length F -- ushion Front R -- ushion Rear -- ushion Both nds A -- Variation in Ports D -- Double Rod xtension K -- Any Variation in Rod from Standard. Any Variation from Standard Style 2 Rod nd. M -- Variation in Mounting P -- NPT Ports S -- Spring Return V -- Viton Seals W-- Water Fitted -- Variation in onstruction BX -- Basic ylinder, Tie Rods xtended, Both nds -- levis L -- enter Line Lug L -- nd Lug FB -- Foot Bracket FF -- Front Flange FFX -- Front Flange, xtra Size FH -- Front Head (7" thru 4" A and MH - 6" thru 24" HH) FHF -- FX -- NX -- P -- RF -- RFX -- RH -- Mounting Styles Front Head Flange Basic ylinder, Tie Rods xtended, Front nd Basic ylinder, No Tie Rod xtension Pivot Rear Flange Rear Flange, xtra Size Rear Head (7" thru 4" A and MH - 6" thru 24" HH) RHF -- RX -- SF -- SL -- SP -- T -- TF -- TR -- Rear Head Flange Basic ylinder, Tie Rods xtended, Rear nd Side Flush Side Lug Sub Plate Trunnion, Between Heads Trunnion, Front Trunnion, Rear Order Information To insure prompt delivery, please B SUR TO INLUD THIS INFORMATION WHN ORDRING:. Quantity 2. Series 3. Bore 4. Stroke - Gross Stroke always shown in Model Number 5. Dual Piston or Stop Tube when necessary - always give Gross and Net Strokes 6. Mounting Style 7. ushion (front, rear, both or none) 8. Rod nd Style (if other than Style 2 standard) 9. Rod Size (standard, oversize or 2:) 0. xtra Rod xtension (where required). Port Size (if other than standard) 2. Port Positions other than standard positions and ushion check, adjusting screw, and bleed positions (when required) if other than standard positions. 4. Medium (air, oil, water or other) 5. Type of fluid 6. Operating Pressure and Maximum Shock Pressure 7. Temperature 8. Double rod extension (when required) 9. XI dimension on all Trunnion (between head) cylinders 20. Delivery required, or scheduling omplete and correct ordering information will eliminate untimely delays. When in doubt, always contact local distributor or factory. ontact distributor for helpful order or inquiry form. Policy: The policy of the Sheffer orporation is one of continual improvement in design and manufacture to assure still finer products, hence, specifications are subject to change without notice. Limited Warranty: Sheffer warrants its products to be free from defects in material and workmanship for a period of one year from the date of shipment. This warranty does not cover field labor charges for parts removal and replacement, adjustments, repairs or other work, corrosion, electrolysis, mineral deposits or normal deterioration, misapplication, modification, or change in original operating conditions; components supplied by others; defects in parts resulting from abuse, negligence, neglect, accident, fire or explosion, or seals and other components subject to normal wear. The sole and exclusive remedy against Sheffer shall be for the repair or replacement of parts returned transportation prepaid to Sheffer s factory and found by Sheffer to be defective. Replacement parts provided shall not extend the warranty period for said parts or for the total unit. IN ONSIDRATION OF THIS XPRSS WARRANT NO OTHR RMD (INLUDING BUT NOT LIMITD TO INIDNTAL OR ONSQUNTIAL DAMAGS) SHALL B AVAILABL. THIS WARRANT SHALL B IN LIU OF AN AND ALL OTHR WARRANTIS, XPRSS OR IMPLID, INLUDING, BUT NOT LIMITD TO, AN IMPLID WARRANT OF MRHANTABILIT OR FITNSS FOR A PARTIULAR PURPOS, AND OF ALL OTHR OBLIGATIONS ON TH PART OF SHFFR. Sheffer neither assumes, nor authorizes any person to assume for it, any other obligation or warranty. 20-6

8 Dimensions Head, ap and Trunnion onfigurations Bore Sizes /2", 2", 2 /2", 3", 3 /2", 4" and 5" In bore sizes /2", 2", 2 /2", 3" and 3 /2", all mounts have square heads, caps and trunnions with four tie rods as pictured on Pages 3 and 4. This is also the case with the 4" and 5" bore sizes of the levis Mount. In bore sizes of 4" and 5", all mounts except clevis have hexagon heads with six tie rods as shown below. The intermediate trunnion in 4" and 5" bore sizes is round with milled flats for the trunnion pins. USHIOND AND NON-USHIOND LINDRS IN BOR SIZS /2" THRU 0" Bore Sizes 6", 7", 8" and 0" In bore sizes 6", 7", 8" and 0", all mounts have octagon heads and caps with eight tie rods as shown below. The intermediate trunnion is round with milled flats for the trunnion pins. FLANG MOUNT FLANG MOUNT UF UF BF BF FOOT MOUNT A FOOT MOUNT A UL UL INTRMDIAT TRUNNION MOUNT TM LVIS MOUNT TB 20-7 Tie Rod Torque hart LINDR TI ROD TORQU IN BOR SIZ FOOT LBS. /2 /4 6 2 /4 6 2 /2 5/ /6 5 3 /2 5/ /6 5 (4) 3 /8 25 LVIS 3 /8 25 MOUNT 5 (4) /2 40 MOUNT 6 3 / / / /2 50 INTRMDIAT TRUNNION MOUNT* *Not available on 0" bore size TM TB

9 Rod nds and Porting 200 PSI Alternate Style Plain male Rod nd with no threads. Used for pushing, holding knockouts, etc /6 8-0 IMPORTANT Style 3 Rod nd is standard and will be furnished unless otherwise specified. Alternate Rod nd Styles, 2, 4 and 6 are available at no extra cost. Special rod end configurations are available for a nominal extra charge. A wide selection of rod end accessories is shown in separate Accessories Brochure. Alternate Style 4 Female thread, used with male accessories for shorter over-all cylinder length. KJ THRAD D WRNH FLATS KL Alternate Style 2 Male thread with adequate shoulder for locking accessory. KK THRAD A D WRNH FLATS STANDARD STL 3 Male thread same diameter as Piston Rod. No shoulder for locking accessories. THRAD A D WRNH FLATS Alternate Style 6 Used with S.A.F.. accessory (see separate Accessories Brochure) for fast, close radial alignment. AF DIA. A AD A Rod nd Dimensions ROD BOR DIA. A A AD A AF D KJ KK KL / 2 /2 /2 3 /6 5 /6 /2 / /6 5 / / /8 2 /2 /2 3 /6 5 /6 /2 / /6 5 / / /8 2 / 2 5 /8 / 8 5 /8 /4 3 /8 /2 5 /8-8 /2 7 /6-20 / /8 3 3 /4 / 8 / 4 /6 5 /6 7 /6 /2 3 /4-6 5 /8 / /8-8 7 /8 3 / 2 3 /4 / 8 / 4 /6 5 /6 7 /6 /2 3 /4-6 5 /8 / /8-8 7 /8 4 / 2 / 2 5 /6 3 /8 /6 /2-4 7 /8 3 /4-6 3 /4-6 5 / 2 / 2 5 /6 3 /8 /6 /2-4 7 /8 3 /4-6 3 /4-6 6 / 2 / 2 5 /6 3 /8 /6 /2-4 7 /8 3 /4-6 3 / / / 4 / 6 3 /8 7 /8 5 /8 / 4-2 / 8 7 / / / / 4 / 6 3 /8 7 /8 5 /8 3 / 8-2 / / / /4 / 2-2 / 2 / 4-2 Port Positions Bore Sizes / 2 ", 2", 2 / 2 ", 3" and 3 / 2 " all mounts. Also 4" and 5" of levis Mount 3 Bore Sizes 4" and 5" all mounts except levis 3 Bore Sizes 6", 7" 8" and 0" all mounts Standard port positions are and 5. Unless otherwise specified, ports will be supplied in those positions. Alternate Port Positions INTR- FRONT RAR MDIAT LVIS FOOT FLANG FLANG TRUNNION MOUNT MOUNT MOUNT MOUNT MOUNT HAD AP HAD AP HAD AP HAD AP HAD AP 2, 3, , 7, 8 2, 3, 4 7 2, 3, 4 6, 7, 8 Optional Port Positions INTR- FRONT RAR MDIAT LVIS FOOT FLANG FLANG TRUNNION MOUNT MOUNT MOUNT MOUNT MOUNT HAD AP HAD AP HAD AP HAD AP HAD AP 6, 8 2, 4 6, 8 2, 4 6, 8 Alternate port positions, are those that can be accomplished by rotating the head and/or the cap. There is no extra charge for these positions but they must be specified on your order. Alternate and Optional positions available are indicated in the charts above. Optional port positions are those that can be accomplished by drilling and tapping auxiliary bosses on the castings. Since heads and caps in stock are already ported in the standard positions, the standard parts must be plugged. There is a small additional charge for plugging and re-porting. In cases of large quantity orders, a special run of castings can be machined with ports in the desired optional positions. Optional positions must be specified on your orders. 20-8

10 The Sheffer orporation 6990 ornell Road incinnati, Ohio (53) Fax: (53) sheffercorp.com