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