Pneumatic And Hydraulic Equipment Page 946

Model CDT4 NFPA Hydraulic Cylinder Standards: Meets or exceeds all J.I.C. and NFPA requirements. Nominal pressure: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3,000 psi Static proof pressure: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5,000 psi With extreme shock loads the mounting styles and piston rod threads have to be considered, taking the fatigue limits into account. Maximum operating pressure up to: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3,000 psi Static non-shock: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5,000 psi Installation position: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Various Pressure fluid: Mineral oils (HL, HLP) Phosphate ester (HFD-R) (-4F to +300F) HFA (41F to 131F) Water glycol HFC (-4F to 140F) Hydraulic fluid temperature range: . . . . . . . . . . . . . . . . . . . . . . . . . . (-4F to 176F) Viscosity range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 to 1760 ssu Degree of contamination: Max. permissible degree of contamination of the pressure fluid is to NAS 1638 class 10. We therefore recommend a filter with a minium retention rate of 10 75. Stroke speed: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 in/sec (dependent on the connection port) Air bleed standard: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Secured against removal Acceptance: Each cylinder is tested to Bosch Rexroth standards. Cylinders, outside the above parameters are also available. Consult JHF. For applications above 230F specify a non studded piston rod end and advise operating temperature before ordering. Technical Data (for applications outside these parameters, please consult JHF) Operating Pressures (PSI) by Cylinder Bore Sizes* *1) Exceptions to 5,000 psi non-shock rating: a) 1-1/2" bore with 5/8" rod, all mounts. b) All bore sizes using the following mounts: MT1, MT2, MT4, MF1, MF2, ME5, ME6, MS7 c) The following mounts for bore sizes listed: MP1: 2-1/2" MP5: 2-1/2", 3-1/4" MF5 & MF6: 6" thru 8" Features Cylinder Standard Non- Bore Rod Nominal Shock 1-1/2 5/8 2 1 2-1/2 1 3-1/4 1-3/8 4 1-3/4 3,000 psi 5,000 psi 5 2 6 2-1/2 7 3 8 3-1/2 Duty, nominal 3,000 psi hydraulic, non-shock 5,000 psi Standards, meets or exceeds all JIC and NFPA requirements Bore Sizes, 1-1/2"-8" (CDT4/CGT4) Piston Rods, 5/8"-5-1/2" (CDT4/CGT4) Mountings, 19 standard NFPA mountings (CDT4/CGT4) Ports, SAE o-ring straight thread ports Stroke, standard strokes furnished in 1/8" increments. Normal stroke tolerance +1/16" / -0". Closer stroke tolerances available; consult factory. Rod End Threads, standard KK1 male and female threads plus KK2 oversize male thread. Other rod end styles optional. Cushions, available for all bore sizes, at either or both ends. Rexroth hydraulics (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com JHF Catalog [ Volume 7 ] 946 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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