Parker Heavy Duty Hydraulic Cylinders

1 CylinderFor cylinder Division Plant Locations See Page DutyHydraulic CylindersSeries 2 HExclusive with the Parker Stepped Cushion forincreased performance and productivity Faster cycle time Reduced Hydraulic shock Reduced machine noise Lower machine maintenance Heavy duty Service Industrial Tie-RodConstruction Nominal Pressure 3000 PSI Standard Bore Sizes 1-1/2" through 6" Piston Rod Diameters 5/8" through 4" 18 Standard Mounting StylesFor additional information call your local Parker cylinder Heavy - duty hydrauliccylinder with featuresonly Parker can promise and deliver!Series 2H Cylinders keep on performing like youexpect from Parker producing more power perpound, more power per dollar over millions oftrouble-free cycles.

2 Everything you need for reliable3,000 psi performance. Patented Jewel rod glandfor longer life and lower operating costs. Chrome-plated, case hardened piston rods. Rod end studs ofhigh yield-strength steel, with rolled threads for addedstrength. Tie rods with rolled threads and steel cushions with float-check action and positivemetal-to-metal seal. And every Parker cylinder isindividually tested before it leaves our cylinder Division Plant Locations See Page 2 HHeavy duty Hydraulic CylindersSpecifications/MountingsStandar d Specifications Heavy duty Service NFPA specifications andANSI mounting dimension standards Standard Construction Square Head Tie Rod Design Nominal Pressure 3000 * Standard Fluid Hydraulic Oil Standard Temperature -10 deg F to +165 deg F** Bore Sizes 11/2" through 6" (Larger sizes available)Tie Rods Extended Both EndsHead Rectangular FlangeHead Square FlangeHead RectangularCap Rectangular FlangeCap Square Flange(NFPA ME5)Style JJ11/2 -6"Page 46(NFPA MF2)Style H11/2 -6"Page 48(NFPA MF6)

3 Style HB11/2 -6"Page 48(NFPA MF5)Style JB11/2 -6"Page 46(NFPA MX3)(NFPA MX2)Style TC11/2 -6"Page 44(NFPA MX1)Style TD11/2 -6"Page 44(NFPA MF1)Style J11/2 -6"Page 46 Cap RectangularSide LugCenterline LugsSide Tapped(NFPA MS2)Style C11/2 -6"Page 50(NFPA MS3)Style E11/2 -6"Page 50(NFPA MS4)Style F11/2 -6"Page 50(NFPA ME6)Style HH11/2 -6"Page 48 Side End AnglesSide End LugsCap Fixed Clevis(NFPA MS7)Style G11/2 -6"Page 52(NFPA MP1)Style BB11/2 -6"Page 52(NFPA MT1)Style D11/2 -6"Page 54(NFPA MS1)Style CB11/2 -6"Page 52 Double Rod CylindersMost of the aboveillustrated mountingstyles are available indouble rod Cylinders . See Catalog Page TrunnionStyle KT Shown11/2 -6"Cap TrunnionIntermediate Fixed TrunnionSpherical Bearing(NFPA MT4)Style DD11/2 -6"Page 54 Style SB11/2 -6"Page 56(NFPA MT2)Style DB11/2 -6"Page 54 Available Mounting StylesNote: Series 2H Hydraulic Cylinders fully meet Standards and ANSI Standard for Mounting Dimensions for Square Head Industrial Fluid Power Rods Extended Head EndStyle TB11/2 -6"Page 44 Tie Rods Extended Cap End Piston Rod Diameter 5/8" through 4" Mounting Styles 18 standard styles at various application ratings Strokes Available in any practical stroke length Cushions Optional at either end or both ends of stroke.

4 Float Check at cap end. Rod Ends Three Standard Choices Specials to Order*If Hydraulic operating pressure exceeds 3000 , send application data for engineeringevaluation and recommendation. See section C, page 84 for actual design factors.** See section C, page 83 for higher temperature line with our policy of continuing product improvement, specifications in this catalogare subject to additional information call your local Parker cylinder PRESSURECUSHION POSITIONIDEAL CUSHION TYPICAL STEPPED CUSHION TYPICAL STRAIGHT CUSHION CUSHION PERFORMANCE The inside story on whyseries 2H is your best choice inheavy duty Hydraulic cylindersParker's New, ExclusiveStepped floating cushionscombine the best features ofknown cushion devices or built-in cushions are optional and can besupplied at head end, cap end, or both ends without change inenvelope or mounting dimensions.

5 Parker cylinder cushions are astepped design and combine the best features of known straight or tapered cushions have been used in industrialcylinders over a very broad range of applications. Parker researchhas found that both designs have their a result, Parker has taken a new approach in cushioning ofindustrial Hydraulic Cylinders and for specific load and velocityconditions have been able to obtain deceleration curves that comevery close to the ideal. The success lies in a stepped sleeve orspear concept where the steps are calculated to approximatetheoretical orifice areas the cushion performance chart, pressure traces show theresults of typical orifice flow conditions. Tests of a three-stepsleeve or spear show three pressure pulses coinciding with thesteps.

6 The deceleration cushion plunger curves shape comes veryclose to being theoretical, with the exception of the last 1/2 inch ofPiston Rod Stud Furnished on 2" diameter rodsand smaller when standardstyle #4 rod end threads arerequired or on 13/8" diameterrods and smaller when style#8 threads are required. Alsoavailable in 2 times thecatalog A dimension have rolled threads andare made from high strengthsteel. Anaerobic adhesive isused to permanently lock thestud to the piston rod. Jewel Rod GlandAssembly Externally removablewithout cylinderdisassembly. Longbearing surface isinboard of the seals,assuring positivelubrication fromwithin the O ring is usedas a seal betweengland and head,and also serves asa prevailing torque-type Strength TieRods Made from100,000 psi minimumyield steel with rolledthreads for Floating Stepped Cushions For maximumperformance economical and flexible for even the most demandingapplications provides superior performance in reducing are optional and can be supplied at head end, cap end, orboth ends without change in envelope or mounting cylinder Body Heavy -wall steeltubing.

7 Honed to amicro finish Head Bored andgrooved to provide concentricityfor mating O ring portsare Seals Pressure-actuatedcylinder body-to-head and cap O This is a constant shape in order to have some flexibility inapplication. The stepped cushion design shows reduced pressurepeaks for most load and speed conditions, with comparablereduction of objectionable stopping forces being transmitted to theload and the support Parker Hannifincushions Series 2 Hcylinder designincorporates thelongest cushionsleeve and cushionspear that can beprovided in thestandard envelopewithout decreasing therod bearing and pistonbearing strengths.(1) When a cushion isspecified at the headend:a. A self-centering stepped sleeve is furnished on the pistonrod A needle valve is provided that is flush with the side of thePrimary Seal New TS-2000 Rod Seal is aproven leakproof design completely self-compensating and self-relieving to withstandvariations and conform to mechanical deflec-tion that may occur.

8 Secondary Seal Double-Service Wiperseal (Hannifin Patent #2907596) wipes clean any oil filmadhering to the rod on theextend stroke and cleansthe rod on the return CushionsSleeve Design Spear DesignCylinderFor cylinder Division Plant Locations See Page *15/1615/16113/16111/1621/16115/16 Head*11/811/811/811/811/811/813/811/1613 /811/1611/1611/16 Piston Rod Medium carbon steel, induction case-hardened to 54 Rc,hard chrome-plated and polished to 10 RMS finish. Piston rods aremade from 90,000 to 100,000 psi minimum yield material in 5/8"through 4" diameters. Larger diameters vary between 57,000 and90,000 psi minimum material, depending on rod diameter. The pistonthread equals the catalog style #4 rod end thread for each roddiameter to assure proper piston-to-rod thread strength.

9 Two wrenchflats are provided for rod end O ring portsare Cap Bored and groovedto provide concentricity for mat-ing PortsPorts ports are optionalat no extra charge. and ports areavailable at extra Buna-N (Nitrile) seals Seals Optional atextra Cut IronPiston Rings Fine Grained Cast Iron Piston The wide piston surface contacting cylinderbore reduces bearing loads, and a long threadengagement with rod provides greater shockabsorption. Anaerobic adhesive is used topermanently lock and seal the piston tothe (Patent #3043639) A 3/16" widesurface machined at each end ofthe cylinder body. Makes precisemounting quick and Steel Tie Rod NutsCushion Length Length Length*Head end cushions for rod diameters notlisted have cushion lengths with the even when wide open.

10 It may be identified by the factthat it is socket-keyed. It is located on side number 2, in allmounting styles except D, DB, DD, JJ, HH and E. In thesestyles it is located on side number On 5" bore and larger Cylinders (except for 21/2" bore withcode 2 rod), a springless check valve is provided that is alsoflush with the side of the head and is mounted adjacent tothe needle valve except on mounting style C, where it ismounted opposite the needle valve. It may be identified bythe fact that it is On 11/2" - 4" bore Cylinders a slotted sleeve design is used inplace of the check 11/2" - 2" bore Cylinders use a cartridge style needle valve(see Figure A).(2) When a cushion is specified at the cap end:a.