Description All-purpose high pressure pump Size 5 … 32, 160 … 1000 Nominal pressure up to 400 bar Maximum pressure up to 450 bar Open circuit Features Robust pump with long service life Very high total efficiency High power density Large variety of available nominal sizes allows exact adjustment to the application Optional with long-life bearings for the nominal sizes 250 to 1000 Bent-axis design Type code 1) Tapered shaft with threaded pin and woodruff key (DIN 6888). The torque must be transmitted via the tapered press fit. Technical data Table of values Size 5 10 12 16 23 28 32 160 180 200 250 355 500 710 1000 Displacement geometric, per revolution Vg cm³ 4.93 10.3 12 16 22.9 28.1 32 160.4 180 200 250 355 500 710 1000 Nominal pressure pnom bar 315 400 400 400 400 400 400 400 400 400 350 350 350 350 350 Maximum pressure pmax bar 350 450 450 450 450 450 450 450 450 450 400 400 400 400 400 Maximum speed nnom 1) rpm 5600 3150 3150 3150 2500 2500 2500 1450 1450 1550 1500 1320 1200 1200 950 nmax 2) rpm 8000 6000 6000 6000 4750 4750 4750 2650 2650 2750 1800 1600 1500 1500 1200 Flow at nnom qV l/min 27.6 32 38 50 57 70 80 233 261 310 375 469 600 852 950 Power at nnom and pnom P kW 14.5 22 25 34 38 47 53 155 174 207 219 273 350 497 554 Torque 3) at pnom M Nm 24.7 66 76 102 146 179 204 1021 1146 1273 1393 1978 2785 3955 5570 Rotary stiffness c kNm/rad 0.63 0.92 1.25 1.59 2.56 2.93 3.12 17.4 18.2 57.3 73.1 96.1 144 270 324 Moment of inertia for rotary group JTW kg·m² 0006 004 004 004 012 012 012 0.022 0.022 0.0353 0.061 0.102 0.178 0.55 0.55 Case volume V l 0.17 0.17 0.17 0.2 0.2 0.2 1.1 1.1 2.7 2.5 3.5 4.2 8 8 Weight (approx.) m kg 2.5 6 6 6 9.5 9.5 9.5 45 45 66 73 110 155 325 336 1) The values are applicable: – at an abs. pressure pabs = 1 bar at the suction port S – for the optimum viscosity range of vopt = 36 to 16 mm2/s - with hydraulic fluid on the basis of mineral oils 2) Maximum speed (limiting speed) with increased inlet pressure pabs at suction port S , see the following diagram. 3) Torque without radial force, with radial force see table "Permissible radial and axial forces of the drive shafts" Maximum speed 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. Other permissible limit values, such as speed variation, reduced angular acceleration as a function of the frequency and the permissible angular acceleration at start (lower than the maximum angular acceleration) can be found in data sheet 90261. Determining the operating characteristics Flow [l/min] 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 fl
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