Axial piston fixed pumpA17FO Series 10

1.Bent Axis Design;

2.Optimized for Mobile Drives;

3.Compact and Lightweight Construction;

4.Direct Power Take-Off Installation;

5.Excellent Suction Characteristics;

6.High Overall Efficiency

Detailed description

This product adopts a reliable bent axis design with a rational structural layout, delivering stable and adaptive performance for diverse operating conditions. Optimized exclusively for mobile drive systems, it perfectly accommodates dynamic load changes and complex working scenarios of mobile machinery and vehicle-mounted equipment. Featuring a compact and lightweight construction, it eliminates redundant structural designs, effectively saving installation space and reducing overall equipment load while maintaining structural durability. It supports direct power take-off installation without complicated adapter parts, simplifying assembly procedures and cutting down installation time and costs. Equipped with excellent suction characteristics, the device ensures smooth and stable suction operation, effectively avoiding cavitation and flow interruption during operation to adapt to various medium transmission conditions. With optimized internal transmission and structural design, it achieves high overall efficiency, minimizing energy loss and delivering consistent, long-term operational stability for improved working performance and cost-effectiveness.

Technical Data

Size NG 23 32 45 63 80 107
Displacement, geometric, per revolution Vg cm3 22.9 32 45.6 63 80.4 106.7
Speed maximum1) nnom2) rpm 3050 2750 2650 2200 2150 2000
nmax3) rpm 4300 3900 3800 3200 3100 2800
Flow at nnom qv l/min 70 88 121 139 173 213
Power at nnom and Δp= 350 bar P kW 41 51 71 81 101 124
Torque at Δp = 350 bar T Nm 127 178 254 351 448 594
Rotary stiffness C kNm/rad 2.56 3.12 4.18 6.25 8.73 11.2
Moment of inertia for rotary group JTW kgm2 0.0012 0.0012 0.003 0.0042 0.0072 0.0116
Maximum angular acceleration α rad/s2 6500 6500 14600 7500 6000 4500
Case volume V l 0.25 0.29 0.4 0.5 0.6 0.75
Mass moment TG Nm 4.7 4.7 8.6 9.9 15.3 20
Mass (approx.) m kg 5.9 5.9 8.4 9.3 12.3 15.0

Maximum speed (limiting speed)

Determining the operating characteristics

Flow qv=(Vg×n×ηv)/1000 [l/min]
Torque T=(Vg×Δp)/(20×π×ηhm) [Nm]
Power P=(2π×T×n)/60000=(qv×Δp)/(600×ηt) [kW]

Key

Vg=Displacement per revolution [cm3]

Δp=Differential pressure [bar]

n=Speed [rpm]

ηv=Volumetric efficiency

ηhm=Hydraulic-mechanical efficiency

ηt=Total efficiency ( ηtv × ηhm)

Note

▶Theoretical values, without efficiency and tolerances;values rounded.

▶Operation above the maximum values or below the minimum values may result in a loss of function,a reduced service life or in the 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.

1) The values are applicable:

- for the optimum viscosity range from νopt = 36 bis 16 mm2/s

- for hydraulic fluids based on mineral oils.

2) The values apply at absolute pabs =1 bar at suction port S

3) Maximum speed (speed limit) with increased inlet pressure pabs at suction port S (see diagram).

Permissible axial forces of the drive shaft

Size NG 23 32 45 63 80 107
Maximum axial force, at standstill or pressure-free operation +Fax max N 0 0 0 0 0 0
-Fax max N 24 33 43 53 60 71

Note

▶The values given are maximum values and do not apply

to continuous operation.

▶The permissible axial force in direction -Fax  is to be avoided as the lifetime of the bearing is reduced.

▶Radial forces are not permissible.

A17FO