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Custom Hydraulic Variable Displacement Pump A10VO 53 Series
Custom Hydraulic Variable Displacement Pump A10VO 53 Series
Custom Hydraulic Variable Displacement Pump A10VO 53 Series
Custom Hydraulic Variable Displacement Pump A10VO 53 Series
Custom Hydraulic Variable Displacement Pump A10VO 53 Series
Custom Hydraulic Variable Displacement Pump A10VO 53 Series
  1. Custom Hydraulic Variable Displacement Pump A10VO 53 Series
  2. Custom Hydraulic Variable Displacement Pump A10VO 53 Series
  3. Custom Hydraulic Variable Displacement Pump A10VO 53 Series
  4. Custom Hydraulic Variable Displacement Pump A10VO 53 Series
  5. Custom Hydraulic Variable Displacement Pump A10VO 53 Series
  6. Custom Hydraulic Variable Displacement Pump A10VO 53 Series

Custom Hydraulic Variable Displacement Pump A10VO 53 Series

1.Variable pump with axial piston rotary group in swashplate design for hydrostatic drives in open circuit.

2.High permissible drive speed

3.Favorable power-to-weight ratio – compact dimensions

4.Excellent suction characteristics

5.Electro-hydraulic pressure control

6.Power control

Detailed description

This axial piston variable pump adopts a swashplate rotary group structure, professionally designed for open-circuit hydrostatic drive systems and suitable for various industrial hydraulic operation scenarios. It supports a high permissible drive speed, enabling efficient and high-speed operation of the whole equipment to meet high-frequency working demands. Featuring an optimized power-to-weight ratio, the pump boasts compact overall dimensions and lightweight construction, which facilitates flexible installation and equipment integration while saving layout space. It delivers excellent suction performance with low suction resistance and stable oil filling capacity, effectively preventing cavitation and air suction issues to ensure continuous and reliable hydraulic system operation. Equipped with electro-hydraulic pressure control and independent power control functions, the pump can precisely adjust system pressure and output power according to actual load changes, realizing stable operation, reasonable power matching and effective energy consumption reduction.

Technical data

Size NG 10 18 28 45 60 63 72 85 100
Displacement, geometric, per revolution Vg max cm3 10.5 18 28 45 60 63 72 85 100
Rotational speed

maximum1)

 at Vg max nnom rpm 3600 3300 3000 26004) 2700 2600 2600 2500 2300
at Vg <Vg max 2) nmax adm. rpm 4320 3960 3600 3120 3140 3140 3140 3000 2500
Flow at nnom and Vg max qv I/min 37 59 84 117 162 163 187 212 230
at nE = 1500 rpm qvE I/min 15 27 42 68 90 95 108 128 150
Power With Nnom, Vg max

and Δp = 250 bar

 P kW 16 25 35 49 65 68 77 89 96
at nE= 1500 rpm PE kW 7 11 18 28 37 39 45 53 62
Torque at Vg max

and Δp = 250 bar

 M Nm 42 71 111 179 238 250 286 338 398
at Vg max

and Δp = 100 bar

 M Nm 17 29 45 72 95 100 114 135 159
Rotary stiffness  Drive shaft S c Nm/rad 9200 11000 22300 37500 65500 65500 65500 143000 143000
R c Nm/rad - 14800 26300 41000 69400 69400 69400 152900 152900
U c Nm/rad 6800 8000 16700 30000 49200 49200 49200 102900 102900
W c Nm/rad - - 19900 34400 54000 54000 54000 117900 117900
P c Nm/rad 10700 - - - - - - - -
Moment of inertia of the rotary group JTW Kgm2 0.0006 0.0009 0.0017 0.003 0.0056 0.0056 0.0056 0.012 0.012
Maximum angular acceleration3) α rad/s2 8000 6800 5500 4000 3300 3300 3300 2700 2700
Case volume V L 0.2 0.25 0.3 0.5 0.8 0.8 0.8 1 1
Weight without through drive (approx.)

Weight with through drive (approx.)

 m kg 8 11.5 15 18 22 22 22 36 36
- 13 18 24 28 28 28 45 45

Determining the operating characteristics

Flow qv=(Vg ∙ n ∙ ηv) / 1000 I/min
Torque M=(Vg ∙ Δp) /(20 ∙ π ∙ ηhm) Nm
Power P=(2π ∙ M ∙ n)/60000=(qv ∙ Δp)/(600 ∙ ηt)  kW

Key

Vg  Displacement per revolution in [cm3]

Δp  Differential pressure [bar]

n   Rotational speed [rpm]

ηv   Volumetric efficiency

ηhm  Hydraulic-mechanical efficiency

ηt   Total efficiency (ηt= ηv*ηhm)

1) The values are applicable:

- At an abs. pressure pabs = 1 bar at the suction port S

- for the optimum viscosity range from Vopt = 36 to 16 mm2/s

- with hydraulic fluid on the basis of mineral oils

2)See diagram on page 9 at speed increase up to nmax adm.

3)The data are valid for values between the minimum required and maximum permissible rotational speed. It applies for external stimuli (e.g. diesel engine 2 to 8 times rotary frequency, cardan shaft twice the rotary frequency). The limit value is only valid fora single pump. The load capacity of the connection parts must be considered.

Permissible radial and axial forces on the drive shaft

Size NG 10 18 28 45 60/63 72 85 100
Maximum radial force at a/2

radial force

 Fq max N 250 350 1200 1500 1700 1500 2000 2000
Maximum axial force

axial force

 ±Fax max N 400 700 1000 1500 2000 1500 3000 3000

Permissible input and through-drive torques

Size 10 18 28 45 60/63 72 85 100
Torque at Vg max and Δp = 250 bar1) Mmax Nm 42 71 111 179 250 321 338 398
Maximum input torque on drive shaft2)
S ME max Nm 126 124 198 319 630 630 1157 1157
∅ in 3/4 3/4 7/8 1 1 1/4 1 1/4 1 1/2 1 1/2
R ME max Nm - 160 250 400 650 650 1215 1215
∅ in - 3/4 7/8 1 1 1/4 1 1/4 1 1/2 1 1/2
U ME max Nm 60 59 105 188 306 306 628 628
∅ in 5/8 5/8 3/4 7/8 1 1 1 1/4 1 1/4
W ME max Nm - - 140 220 396 383 650 650
∅ in - - 3/4 7/8 1 1 1 1/4 1 1/4
P ME max Nm 90 - - - - - - -
∅ mm 18 - - - - - - -
Maximum through-drive torque
S MD max Nm - 108 160 319 484 484 698 698
R MD max Nm - 120 176 365 484 484 698 -
U MD max Nm - 59 105 188 306 306 628 628
W MD max Nm - - 140 220 396 383 650 650

Distribution of torques

 

Torque at 1st pump M1
Torque at 2nd pump M2
Torque at 3rd pump M3
Input torque ME=M1+M2+M3
ME < ME max
Through∙drive torque MD=M2+M3
MD < MD max

1)Efficiency not considered

2) For drive shafts with no radial force

Custom Hydraulic Variable Displacement Pump A10VO 53 Series

A10VO 53 Series