Linear Motion andAssembly Technologies ServicePneumaticsHydraulics

Electric Drives and Controls

Axial Piston Variable Pump A10VSO

Data sheet

Series 32 Size 45 to 180Nominal pressure 280 barMaximum pressure 350 barOpen circuit

FeaturesVariable axial piston pump in swash plate design for hydro- static drives in open circuit systems

The flow is proportional to the drive speed and the displace- ment

The flow can be steplessly varied by adjustment of the swash plate angle.

Hydrostatic unloading of the cradle bearings

Port for pressure transducer in pump outlet

Low noise level

Low pressure pulstation

High efficiency

Highly resistant against cavitation, sudden drop in suction pressure and housing pressure spikes

Universal through drive

RE 92714/07.10 1/40 Replaces: 09.07

ContentsType code for standard program 2

Technical data 4

Technical data Standard rotary group Version E 6

Technical data High Speed rotary group Version S 7

Technical data 8

DG Two point control, directly operated 10

DR Pressure control 11

DRG Pressure control remotely operated 12

DRF/DRS Druck-Frderstromregler 13

LA... Pressure, flow and power control 14

Dimensions size 45 up to 180 15

Dimensions through drive 30

Summary mounting options 35

Combination pumps A10VSO + A10VSO 36

Installation notes 38

General information 40

2/40 Bosch Rexroth AG A10VSO Series 32 | RE 92714/07.10

Type code for standard program

A10VS O / 32 V B01 02 03 04 05 06 07 08 09 10 11 12

Axial piston unit01 Swash plate design, variable, nominal pressure 280 bar, maximum pressure 350 bar A10VS

Type of operation02 Pump, open circuit O

Size (NG)03 Theoretical displacement Vg max in cm3 (see table of values page 6) 045 071 100 140 180

Control device 045 071 100 140 180

04

Two point control, directly controlled DG

Pressure control DR

with flow control, hydraulic X-T open DRF

X-T closed DRS

with flow control, electric DFE11)

with pressure control, remotely operated hydraulic DRG

electric ED.2)

Power control with pressure cut off

Control begin to 50 bar LA5D

from 51 to 90 bar LA6D

91 to 160 bar LA7D

160 to 240 bar LA8D

over 240 bar LA9D

with pressure cut off remotely operated

Control begin see above LA.DG

with pressure cut off, flow control, X-T closed

Control begin see above LA.DS

with separate flow control, X-T closed

Control begin see above LA.S

Series05 Series 3, Index 2 32

Direction of rotation

06With view on drive shaft clockwise R

counter clockwise L

Seals

07FKM (Fluoro-rubber) V

for HFA, HFB and HFC-fluids (except Skydrol) C3)

See RE 30030, or http://www.boschrexroth.de/sydfe (not for HFx-fluids)1) See RE 927072) See RE 902233)

= available = on request = not available

RE 92714/07.10 | A10VSO Series 32 Bosch Rexroth AG 3/40

Type code for standard program

A10VS O / 32 V B01 02 03 04 05 06 07 08 09 10 11 12

Drive shaft 045 071 100 140 180

08

Parallel keyed shaft to DIN 6885 P

Splined shaft to ISO 3019-1 (SAE J744) S

Splined shaft for higher torques to ISO 3019-1 (SAE J744) R

Mounting flange09 ISO 3019-2 - 4-bolt B

Ports for service lines1)

10

SAE-flange on top and at the bottom , opposite sides, Metric fixing thread, with universal through drive 22U

Like 22U, with pulsation damping, not for High Speed 32U

Through drive

11

Without through drive, with through drive shaft, without shaft coupler, without adapter flange, with cover properly closed

99

Without through drive, with through drive shaft, without shaft coupler, without adapter flange with cover properly closed ( for new applications) 00

Flange ISO 3019-22) Coupler for splined shaft3)

ISO 80, 2-bolt 3/4 in 11T 16/32DP B2

ISO 100, 2-bolt 7/8 in 13T 16/32DP B3

ISO 100, 2-bolt 1 in 15T 16/32DP B4

ISO 125, 4-bolt 1 in 15T 16/32DP E1

ISO 160, 4-bolt 1 1/4 in 14T 12/24DP B8

ISO 180, 4-bolt 1 1/2 in 17T 24/24DP B9

ISO 180, 4-bolt 1 3/4 in 13T 8/16DP B7

Flange ISO 3019-12)

82-2 (A) 5/8 in 9T 16/32DP 01

82-2 (A) 3/4 in 11T 16/32DP 52

101-2 (B) 7/8 in 13T 16/32DP 68

101-2 (B) 1 in 15T 16/32DP 04

127-4 (C) 1 in 15T 16/32DP E2

127-4 (C) 1 1/4 in 14T 12/24DP 15

127-2 (C) 1 1/2 in 17T 12/24DP 24

152-4 (D) 1 1/2 in 17T 12/24DP 96

152-4 (D) 1 3/4 in 13T 8/16DP 17

Rotary group version

12Standard-rotary group (noise-optimized for n = 1500/1800 rpm) E

High Speed (only with port plate 22U) S

= available = on request = not for new applications = not available

See RE 95581 universal through drive1) 2-bolt: mounting pump series 31; 4-bolt: mounting pump series 32. See page 35 Summary mouting options2) Coupler for splined shaft to ANSI B92.1a (drive shaft allocation to SAE J744)3)

4/40 Bosch Rexroth AG A10VSO Series 32 | RE 92714/07.10

Technical dataFluidsPrior to project design, please see our technical data sheets RE 90220 (mineral oil) and RE 90221 (environmentally ac-ceptable fluids) for detailed information on fluids and operating conditions.

When using HF- or environmentally acceptable fluids please-contact us. (when ordering , please state in clear text the fluid to be used ). Operation on Skydrol fluid is only possible after consultation with us.

Operating viscosity rangeFor optimum efficiency and service life we recommend that the operating viscosity (at operating temperature) be selected the range

opt = optimum operating viscosity 16 ... 36 mm2/s

referred to tank temperature (open circuit).

Limit of viscosity rangeFor critical operating conditions the following values apply:

min = 10 mm2/s for short periods (t 1 min) at max. perm. fluid temperature of 90 C.

Please note that the max. leakage fluid temperature of 90 C is also not exceeded in certain areas (for instance bearing area).The fluid temperature in the bearing area is approx. 5 K higher than the average leakage fluid temperature

max = 1000 mm2/s for short periods (t 1 min) on cold start (p 30 bar, n 1500 rpm, tmin = -25 C)

At temperatures between -40 C and -25 C special measures are required, please consult us for further information.

For detailed information on operation with low temperatures see data sheet RE 90300-03-B.

Selection diagram

Notes on the selection of the hydraulic fluidIn order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuit) in relation to the ambient temperature.

The fluid should be selected so that witin the operating tempe-rature range, the viscosity lies within the optimum range (opt), see shaded section of the selection diagram. We recommend to select the higher viscosity grade in each case.

Example: at an ambient temperature of X C the operating tem-perature in the tank is 60 C . in the optimum viscosity range (opt; shaded area) this corresponds to viscosity grades VG 46 resp. VG 68; VG 68 should be selected.

Important: The leakage oil (case drain oil) temperature is influ-enced by pressure and input speed and is always higher than the tank temperature. However, at no point in the component may the temperature exceed 90 C.

If the above conditions cannot be met, due to extreme opera-ting pameters please consult us.

Filtration of the fluidThe finer the filtration the better the fluid cleanliness class ,and the longer the service life of the axial piston pump.

In order to guarantee the functional reliability of the axial piston unit it is necessary to carry out a gravimetric evaluation of the fluid to determine the particle contamination and the cleanli-ness class acc. to ISO 4406. A cleanliness class of at least is necessary 20/18/15. At very high fluid temperatures (90 C to max. 115 C) a clean-liness class of at least 19/17/14 nach ISO 4406 is necessary.

If above classes cannot be maintained, please consult us.

tmin = -40 C

t in C

tmax = +90 C

5

10

4060

20

100

200

400600

100016002500 0 20 40 60 80 100-40 -20

opt.

16

36

5

1600

-40 -25 -10 10 30 50 90700

VG 22

VG 32

VG 46

VG 68

VG 100

Temperature t in CFluid temperature range

Visc

osity

[

mm

2 /s]

RE 92714/07.10 | A10VSO Series 32 Bosch Rexroth AG 5/40

Technical dataOperating pressure rangePressure at outlet port (pressure port) B

Nominal pressure pnom _________________ 280 bar absolute

Maximum pressure pmax _______________ 350 bar absolute Individual operating period ________________________ 2.5 ms Total operating period _____________________________ 300 h Minimum pressure(high pressure side) __________ 10 bar2)

Rate of pressure change RA max _____________ 16000 bar/s

pnom

t

p

Time t

Pre

ssur

e p

To safeguard against over pressure pump safety blocks to RE 25880 and RE 25890 for direct mounting onto the SAE flange ports can be ordered separately.

Pressure at suction port S (inlet)

Inlet pressure

Size 45 to100 at 1800 rpm Minimum suction pressure pabs min ___________ 0.8 bar absolute

Size 140 to180 at 1800 min-1 Minimum suction pressure pabs min _____________ 1 bar absolute

Maximum suction pressure pabs max __________10 bar1) absolute

Case drain pressure

Maximum permissible case drain pre