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Bent Axis Variable Piston Pump A7VO
Bent Axis Variable Piston Pump A7VO
Bent Axis Variable Piston Pump A7VO
Bent Axis Variable Piston Pump A7VO
Bent Axis Variable Piston Pump A7VO
Bent Axis Variable Piston Pump A7VO
  1. Bent Axis Variable Piston Pump A7VO
  2. Bent Axis Variable Piston Pump A7VO
  3. Bent Axis Variable Piston Pump A7VO
  4. Bent Axis Variable Piston Pump A7VO
  5. Bent Axis Variable Piston Pump A7VO
  6. Bent Axis Variable Piston Pump A7VO

Bent Axis Variable Piston Pump A7VO

1.Variable pump with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in open circuit

2.For use in mobile and stationary applications

3.Flow is proportional to the drive speed and displacement.

4.The flow can be steplessly changed by adjusting the bent axis.

5.Wide selection of control devices

6.Compact, robust pump with a long service life

Detaillierte Beschreibung

This is a variable pump equipped with an axial tapered piston rotary group of bent-axis design, specifically developed for hydrostatic drives in open-circuit systems. It ensures efficient power transmission and stable oil flow output, which is essential for the reliable operation of open-circuit hydrostatic drive systems. The pump is suitable for both mobile and stationary applications, such as construction machinery, agricultural equipment, and industrial hydraulic stations, adapting to different working environments and load requirements. Its flow rate is proportional to the drive speed and displacement, meaning the output flow can be flexibly adjusted with the changes of these two parameters to match actual working demands. The flow can be steplessly changed by adjusting the bent axis, enabling precise and smooth flow regulation without obvious pressure fluctuations. It offers a wide selection of control devices, including manual, hydraulic, and electric controls, to meet diverse system control needs. With a compact and robust structure, the pump has strong resistance to wear and impact, ensuring a long service life and reducing maintenance frequency and costs.

Auswahl und Preisanfrage

Diese Produktreihe sollte anhand des freigegebenen Hydraulikkreises ausgewählt werden. Bestätigen Sie vor der endgültigen Auswahl den erforderlichen Volumenstrom oder das Verdrängungsvolumen, den Dauer- und Spitzendruck, die Antriebsdrehzahl, die Steuerungsart, das Fluid und die Einbauschnittstelle.

Angaben für Ihre Angebotsanfrage

  • Erforderliches Verdrängungsvolumen oder Förderstrom bei Betriebsdrehzahl
  • Dauerdruck und Spitzendruck des Systems
  • Antriebsgeschwindigkeit, Steuerungsanforderung und Schaltungsart
  • Montageflansch, Welle, Anschlüsse, Fluid- und Filtrationsanforderung

Verwandte Ressourcen

Angebot anfordern · Download-Center · OEM / ODM

Bestellcode

01 02 03 04 05 06 07 08 09 10 11 12 13
A7V ○ / 63 - V B 01

Axialkolbeneinheit

01 Bent-axis design, variable, nominal pressure 350 bar, maximum pressure 400 bar A7V

Betriebsart

02 Pumpe, offener Kreisklauf ○

Größe (NG)

03 Geometric displacement V2 (cm 3), see "Technical data" on page 7 28 55 80 107 160
For sizes 250, 355 and 500, see data sheet 92203

Steuergerät

28 55 80 107 160
04 Power controller without power override ● ● ● ● ● LR
mit Abschaltvorrichtung ● ● ● ● ● LRD
mit Hubbegrenzung Negativkontrolle Δp = 25 bar - ● ● ● ● LRH1
with pressure cut-o ffand stroke limiter Negativkontrolle Δp = 25 bar - ● ● ● ● LRDH1
with pressure cut-o ffand load sensing - ● ● ● ● LRDS
Power controller with hydraulically proportional power override

(only available for clockwise rotation and with port plate 02)
mit Lasterfassung - ● ● - - LA1S
with load sensing and hydraulically proportional LS-override - ● ● - - LA1S5
Druckregler ● ● ● ● ● DR
fernbedient ● ● ● ● ● DRG
mit Lasterfassung - ● ● ● ● DRS
Proportional control hydraulic Positive control Δp = 10 bar ● ● ● ● ● HD1
with pressure cut-off, remotely controlled Positive control Δp = 10 bar ● ● ● ● ● HD1G
Proportional control electrical Positive control U=24V ● ● ● ● ● EP2

Serie

05 Series 6, index 3 63

Drehrichtung

28 to 160
06 Auf Antriebswelle betrachtet im Uhrzeigersinn ● R
gegen den Uhrzeigersinn ● L

Dichtungsmaterial

07 FKM (Fluorelastomer) V

Antriebswelle

28 to 160
08 Splined shaft DIN 5480 ● Z
Parallel keyed shaft according to DIN 6885 ● P

Montageflansch

09 ISO 3019-2; 4-hole B

Port plate for working lines

10 SAE flange ports A and S at rear (metric fastening thread) 01
SAE flange ports A and S at side (available for power controllers LA1S and LA1S5 only, metric fastening thread) 02

•= available      -= not available     = bevorzugtes Programm

1 2 3 4 5 6 7 8 9 10 11 12 13
A7V ○ / 63 - V B 1

Magnetstecker1)

11 Without connector (without solenoid, with hydraulic control only; without code)
DEUTSCH Flachsteckergehäuse, 2-polig – ohne Löschdiode P

Standard / special version

12 Standard version (without code)
Special version -S

•= available    -= not available     = bevorzugtes Programm

Notizen

▶Preser vation:

-Up to 12 mont hs as standard

-Up to 24 mont hs long-term

(state in plain text when ordering)

Technische Daten

Größe NG 28 55 80 107 160
Geometrisches Fördervolumen pro Umdrehung Vg max cm3 28.1 54.8 80 107 160
Maximum rotational speed 1) At VG-Max nnom U/min 3150 2500 2240 2150 1900
At Vg<0.74 x Vg Max nmax1 U/min 4250 3400 3000 2900 2560
Maximum rotational speed 2) nmax2 U/min 4750 3750 3350 3200 2850
Fluss At VG-Max and nnom qv l/min 89 137 179 230 304
Macht At VG-Max ,  nnom and Δp =350 bar P kW 52 80 105 134 177
Drehmoment At VG-Max and Δp =350 bar T Machs gut 156 305 446 596 891
Rotary stiffness Vg Max to V g/2 cmin kNm/rad 5 10 16 21 36
Vg/2 to 0 (interpolated) cMax kNm/rad 16 32 49 67 104
Moment of inertia rotary group JTW kgm2 0.0042 0.0042 0.0080 0.0127 0.0253
Maximale Winkelbeschleunigung α rad/s2 35900 31600 24200 19200 15300
Fallzahl V l 0.5 0.75 1.2 1.5 2.4
Weight (approx.) m kg 17 25 40 49 71

Maximum permissible speed (limit speed)

Bestimmung der Betriebskennlinien

Fluss qv=(Vg ∙ n ∙ ηv) / 1000 l/min
Drehmoment T=(Vg ∙ Δp) /(20 ∙ π ∙ ηmh) Machs gut
Macht P=(2π ∙ T ∙ n)/60000=(qv ∙ Δp)/(600 ∙ ηt)  kW

Schlüssel

Vg = Displacement per revolution  [cm3]

Δp = Differential pressure [bar]

n = Rotational speed [rpm]

ηv  = Volumetric efficiency

ηmh = Hydraulic-mechanical efficiency

ηt  = Total efficiency (ηt= ηv*ηmh)

Notizen

▶Theore tical 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 valid:

- At absolute pressure PABS = 1 bar at suction port S

- For the optimal viscosity range of ventscheiden = 36 bis 16 mm2/s

-For hydraulic fluid based on mineral oils.

2) Maximum rotational speed (speed limit) for increased inlet pressure PABS at suction port S and Vg < Vg Max , see diagram.

Variable Displacement Piston pump A7VO