Description Medium pressure motor for integration in mechanical gearboxes Size 10 … 63 Nominal pressure 280 bar Maximum pressure 350 bar Open and closed circuits Features Space-saving construction due to recessed mounting flange Approved for high speeds Long service life High power density Low operating noise Optional with integrated anti-cavitation valve, e.g. for fan drives Optional with speed sensor Swashplate design Type code 1) Only necessary in conjunction with valve configuration "2" (integrated anti cavitation valve) 2) Drive shaft R with flange C on sizes 10 … 18 in preparation Technical data Table of values Size 10 11 14 16 18 23 28 37 45 58 63 Displacement geometric, per revolution Vg cm³ 10.6 11.5 14.1 16.1 18 23.5 28.5 36.7 44.5 58 63.1 Nominal pressure pnom bar 280 280 280 280 280 280 280 280 280 280 280 Maximum pressure pmax bar 350 350 350 350 350 350 350 350 350 350 350 Maximum speed 1) nnom rpm 5000 4200 4200 4200 4200 4900 4700 4200 4000 3600 3400 Inlet flow at nnom qV l/min 53 48 59 68 76 115 134 154 178 209 215 Power at nnom and pnom P kW 24.7 22.5 27.6 31.6 35.3 53.6 62.5 71.8 83.1 97.4 100.1 Starting torque at nnom and pnom M0 Nm 37.5 30 45 53 67.5 75 105 125 170 205 230 Torque at pnom M Nm 47 51 63 72 80 105 127 163 198 258 281 Rotary stiffness Drive shaft R c kNm/rad 14.835 28.478 28.478 46.859 46.859 80.59 80.59 Drive shaft W c kNm/rad 38.489 34.489 60.907 60.907 Drive shaft C c kNm/rad 15.084 18.662 18.662 18.662 18.662 30.017 30.017 46.546 46.546 87.667 87.667 Moment of inertia for rotary group JTW kg·m² 006 0093 0093 0093 0093 017 017 033 033 056 056 Maximum angular acceleration ɑ rad/s² 8000 6800 6800 6800 6800 5500 5500 4000 4000 3300 3300 Case volume V l 0.1 0.15 0.15 0.15 0.15 0.6 0.6 0.7 0.7 0.8 0.8 Weight (approx.) m kg 5 6.5 6.5 6.5 6.5 12 12 17 17 22 22 1) At least 18 bar required at low pressure side Note The values in the table are theoretical values, without consideration of efficiencies and tolerances. The values are rounded. Exceeding the maximum or falling below the minimum permissible values can lead to a loss of function, a reduction in operational service life or total destruction of the axial piston unit. We recommend testing the loads by means of experiment or calculation / simulation and comparison with the permissible values. Determining the operating characteristics Inlet flow [l/min] Rotational speed [rpm] Torque [Nm] Power [kW] Key Vg Displacement per revolution [cm3] Δp Differential pressure [bar] n Rotational speed [rpm] ηv Volumetric efficiency ηhm Hydraulic-mechanical efficiency ηt Total efficiency (ηt = ηv • ηhm) Hydraulic fluids The axial piston unit is designed for operation with mineral oil HLP according to DIN 51524. Application instructions and requirements for hydraulic fluids should be taken from the following data sheets before the start of project planning: 90220: Hydraulic fluids based on mineral oils and related hydrocarbons 90221: Environmentally acceptable hydraulic fluids For
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