axial piston variable pump a10vo series 52 and 53 · pdf filebosch rexroth ag, re...

RE 92703/10.2014, Bosch Rexroth AG

A10VO 63DRS/53...

Features ▶ Variable axial piston pump of swashplate design for

hydrostatic drives in open circuit. ▶ The flow is proportional to the drive speed and the

displacement. ▶ The flow can be infinitely varied by adjusting the swash-

plate angle. ▶ Stable storage for long service life ▶ High permissible drive speed ▶ Favorable power-to-weight ratio – compact dimensions ▶ Low noise ▶ Excellent suction characteristics ▶ Electro-hydraulic pressure control ▶ Power control ▶ Electro-proportional swivel angle control ▶ Short response times

▶ Sizes 10 to 100 ▶ Nominal pressure 250 bar ▶ Maximum pressure 315 bar ▶ Open circuit

Axial piston variable pumpA10VO series 52 and 53

RE 92703Edition: 10.2014Replaces: 08.2011

ContentsOrdering code 2Hydraulic fluids 5Operating pressure range 7Technical data 8DR – Pressure control 10DRG – Pressure control remotely operated 11DRF (DFR) / DRS (DFR1) / DRSC Pressure and flow control 12LA... – Pressure, flow and power control 14LA... – Variations 15ED – Electro-hydraulic pressure control 16ER – Electro-hydraulic pressure control 17EP – Electro-proportional control 18EK – Electro-proportional control with controller cut-off 19EP(K).DF / EP(K).DS / EP(K) with pressure and flow control 20EP.ED / EK.ED with electro-hydraulic pressure control 21Dimensions, size 10 to 100 22Dimensions through drive 54Overview of attachment options 58Combination pumps A10VO + A10VO 59Connector for solenoids 60Installation instructions 61Project planning notes 64Safety instructions 64

Bosch Rexroth AG, RE 92703/10.2014

2 A10VO series 52 and 53 | Axial piston variable pumpOrdering code

Ordering code

01 02 03 04 05 06 07 08 09 10 11 12

A10V(S) O / 5x – V

Axial piston unit 10 18 28 45 601) 63 72 85 10001 Swashplate design, variable, nominal pressure 250 bar, maximum pressure 315 bar ● – – – – – – – – A10VS

– ● ● ● ● ● ● ● ● A10V

Operation mode02 Pump, open circuit O

Size (NG)03 Geometric displacement, see table of values on page 6 10 18 28 45 60 63 72 85 100

Control devices04 Pressure control hydraulic ● ● ● ● ● ● ● ● ● DR

with flow control hydraulic X-T open ● – ● ● ● – – ●3) – DFR

– ● – – – ● ● ●2) ● DRF

X-T plugged ● – ● ● ● – – ●3) – DFR1

with flushing function – ● – – – ● ● ●2) ● DRS

without flushing function ● ● ● ● ● ● ● ● ● DRSC

electrically overridden (negative control) – ○ ○ ○ – ● ● ● ○ EF.D.4)

pressure cut-off hydraulic remotely operated ● ● ● ● ● ● ● ● ● DRG

electric negative control U = 12 V – ● ● ● ● ● ● ● ● ED71

U = 24 V – ● ● ● ● ● ● ● ● ED72

electric positive control U = 12 V – ● ● ● ● ● ● ● ● ER715)

U = 24 V – ● ● ● ● ● ● ● ● ER725)

Power control with pres-sure cut-off

hydraulic start of control from 10 to 35 bar – ● ● ● – ● ● ● ● LA5D

36 to 70 bar – ● ● ● – ● ● ● ● LA6D

71 to 105 bar – ● ● ● – ● ● ● ● LA7D

106 to 140 bar – ● ● ● – ● ● ● ● LA8D

141 to 230 bar – ● ● ● – ● ● ● ● LA9D

remotely operated hydraulic start of control see LA.D – ● ● ● – ● ● ● ● LA.DG

flow control, X-T plugged

hydraulic start of control see LA.D – ● ● ● – ● ● ● ● LA.DS

electrically overridable (negative control)

start of control see LA.D

– ● ● ● – ● ● ● ● LA.S

Proportional control electric positive control

with pressure control U = 12 V – ● ● ● – ● ● ● ● EP1D

U = 24 V – ● ● ● – ● ● ● ● EP2D

with pressure and flow control (load sensing)

X-T open U = 12 V – ● ● ● – ● ● ● ● EP1DF

U = 24 V – ● ● ● – ● ● ● ● EP2DF

with pressure and flow control (load sensing)

X-T plugged U = 12 V – ● ● ● – ● ● ● ● EP1DS

U = 24 V – ● ● ● – ● ● ● ● EP2DS

with electro-hydraulic pressure control

U = 12 V – ● ● ● – ● ● ● ● EP1ED

U = 24 V – ● ● ● – ● ● ● ● EP2ED1) Series 52 units are delivered as standard with 60 cm3. Higher

values on request2) Series 53 only with D flange3) Series 52 only with C flange4) See data sheet 92709

5) The following must be taken into account during project planning: Excessive current levels (I > 1,200 mA with 12 V or I > 600 mA with 24 V) to the ER solenoid can result in undesired increase of pressure which can lead to pump or system damage: - Use Imax current limiter solenoids. - An intermediate-plate pressure controller can be used to protect the pump in the event of overflow. An accessory kit with intermediate plate pressure controller can be ordered from Bosch Rexroth under part number R902490825.


3 Axial piston variable pump | A10VO series 52 and 53 Ordering code

10 18 28 45 601) 63 72 85 10004 Proportional control electric positive control

Pressure and flow control with controller cut-off (load sensing)

X-T open U = 12 V – ● ● ● – ● ● ● ● EK1DF

U = 24 V – ● ● ● – ● ● ● ● EK2DF

Pressure and flow control with controller cut-off (load sensing)

X-T plugged U = 12 V – ● ● ● – ● ● ● ● EK1DS

U = 24 V – ● ● ● – ● ● ● ● EK2DS

Electro-hydraulic pressure control with controller cut-off

U = 12 V – ● ● ● – ● ● ● ● EK1ED

U = 24 V – ● ● ● – ● ● ● ● EK2ED

Series05 Series 5, index 2 ● – ● ● ● – – ● – 526)10)

Series 5, index 3 – ● ● ● – ● ● ● ● 537)8)9)

Direction of rotation06 View on drive shaft clockwise R

counter clockwise L

Sealing material07 FKM (fluor-caoutchouc) V

Drive shaft08 Splined shaft standard shaft ● ● ● ● ● ● ● ● ● S

ANSI B92.1a similar to shaft “S” however for higher input torque – ● ● ● ● ● ● – – R

reduced diameter, limited suitability for through drive ● ● ○ ● ● ● ● ● ● U

similar to shaft “U”, however for higher torque – – ○ ● ● ● ● ● ● W

Parallel keyed shaft DIN 6885 limited suitability for through drive ● ● ○ ○ – – – – ○ P

Mounting flange09 ISO 3019-2 (ISO) 2-hole ● – – – – – – – – A

ISO 3019-1 (SAE) 2-hole ● ● ● ● ● ● ● ● ● C

4-hole – – – – ● ● ● ●11) ● D

Working port10 SAE flange port

metric fastening threadrear not for through drive – ● ● ● ● ● ● ● ● 11

at side, opposite for through drive – ● ● ● ● ● ● ● ● 12

at side, offset 90° not for through drive; available only for counter-clockwise rotation

– – – ● – – – – – 13

Metric threaded port rear not for through drive ● – – – – – – – – 14

01 02 03 04 05 06 07 08 09 10 11 12

A10V(S) O / 5x – V

6) Control DR, DFR, DFR1, DRG, ED and ER: delivery with nominal sizes 10, 28, 45, 60 and 8510) only in series 52

7) Control DR, DRF, DRS, DRG, ED and ER: delivery with nominal sizes 18, 63, 72, 859) and 100 only in series 53

8) Control EF., LA.., EP.. and EK..: delivery with nominal sizes 18 to 100 only in series 53

9) Control DRF and DRS: delivery with nominal size 85 only with D flange in series 53

10) Control DFR, DFR1: delivery with nominal size 85 only with C flange in series 52

11) Only available in series 53. For controller designation and series assignment, please refer to positions 04, 05, including footnotes.



Through drive (for attachment options, see page 37)

11 Flange ISO 3019-1 Hub for splined shaft12)

Diameter Diameter 10 18 28 45 601) 63 72 85 100without through drive – ● ● ● ● ● ● ● ● N00

82-2 (A) 5/8 in 9T 16/32DP – ● ● ● ● ● ● ● ● K01

3/4 in 11T 16/32DP – ● ● ● ● ● ● ● ● K52

101-2 (B) 7/8 in 13T 16/32DP – – ● ● ● ● ● ● ● K68

1 in 15T 16/32DP – – – ● ● ● ● ● ● K04

127-4 (C) 1 1/4 in 14T 12/24DP – – – – ● ● ● ● ● K15

1 1/2 in 17T 12/24DP – – – – – – – ● ● K16

127-2 (C) 1 1/4 in 14T12/24DP – – – – – – – ● ● K07

1 1/2 in 17T 12/24DP – – – – – – ● ● K24

Connector for solenoids12 DEUTSCH – molded connector, 2-pin – without suppressor diode (for electric controls) – ● ● ● ● ● ● ● ● P

● = Available ○ = On request – = Not available

Note ▶ Note the project planning notes on page 64! ▶ Preservation:

– Up to 12 months as standard – Up to 24 months long-term (state in plain text when

ordering)

01 02 03 04 05 06 07 08 09 10 11 12

A10V(S) O / 5x – V

12) According to ANSI B92.1a


Axial piston variable pump | A10VO series 52 and 53 Hydraulic fluids

5

Hydraulic fluids

The A10VO variable pump is designed for operation with HLP mineral oil according to DIN 51524. Application instructions and requirements for hydraulic fluids should be taken from the following data sheets before the start of project planning:

▶ 90220: Hydraulic fluids based on mineral oils and related hydrocarbons

▶ 90221: Environmentally acceptable hydraulic fluids

Notes on selection of hydraulic fluidThe hydraulic fluid should be selected such that the operat-ing viscosity in the operating temperature range is within the optimum range (νopt: see selection diagram).

NoteAt no point of the component may the temperature be higher than 115 °C. The temperature difference specified in the table is to be taken into account when determining the viscosity in the bearing.If the above conditions cannot be maintained due to extreme operating parameters, please contact the respon-sible member of staff at Bosch Rexroth.

Viscosity and temperature of hydraulic fluids

Viscosity Temperature Comment

Cold start νmax ≤ 1600 mm2/s θSt ≥ -40 °C t ≤ 1 min, without load (p ≤ 30 bar), n ≤ 1000 rpm

Permissible temperature difference ΔT ≤ 25 K between axial piston unit and hydraulic fluid

Warm-up phase ν < 1600 to 400 mm2/s θ = -40 °C to -25 °C Note the detailed information on operation with low tempera-tures, see data sheet 90300-03-B.

Continuous operation ν = 400 to 10 mm2/s This corresponds, for example on the VG 46, to a temperature range of +5 °C to +85 °C (see selection diagram page 5)

θ = -25 °C to +110 °C measured at port LNote the permissible temperature range of the shaft seal(ΔT = approx. 5 K between the bearing/shaft seal and port L)

νopt = 36 to 16 mm2/s Range of optimum operating viscosity and efficiency

Short-term operation νmin ≥ 7 mm2/s t < 1 min, p < 0.3 • pnom

▼ Selection diagram

Range of optimum operating viscosity vopt

Optimum efficiency

Maximum permissible viscosity for cold start

Minimum permissible viscosity for short-term operation

Temperature θ [°C]

Visc

osity

ν [

mm

2 /s]

Con

tinuo

us o

pera

tion

Warm-up phase

Minimum permissible temperature for cold start-40 -25 -10 10 30 50 90 115700

7

10

4060

20

100

200

400600

10001600

VG 22VG 32VG 46VG 68VG 100

16

36



Filtration of the fluidThe finer the filtration, the better the hydraulic fluid cleanli-ness level, and the longer the service life of the axial piston unit.A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.At very high hydraulic fluid temperatures (90 °C to maxi-mum 115 °C), a cleanliness level of at least 19/17/14 according to ISO 4406 is necessary. Please contact us if the above classes cannot be observed.


Axial piston variable pump | A10VO series 52 and 53 Operating pressure range

7

t1

t2tn

Operating pressure range

Pressure at working port B Definition

Nominal pressure pnom 250 bar absolute The nominal pressure corresponds to the maximum design pressure.

Maximum pressure pmax 315 bar absolute The maximum pressure corresponds the maximum operating pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period.

Single operating period 2.5 ms

Total operating period 300 h

Minimum pressure pB abs

(high pressure side)10 bar absolute Minimum pressure on the high-pressure side (B) which is required in order to

prevent damage to the axial piston unit.

Rate of pressure change RA max 16000 bar/s Maximum permissible rate of pressure build-up and pressure reduction during a pressure change over the entire pressure range.

Pressure at suction port S (Inlet)

Minimum pressure pS min

Standard 0.8 bar absolute Minimum pressure at suction port S (inlet) that is required in order to avoid dam-age to the axial piston unit. The minimum pressure depends on the speed and displacement of the axial piston unit.

Maximum pressure pS max 5 bar absolute

Case drain pressure at port L1, L2

Maximum pressure pL max 2 bar absolute Maximum 0.5 bar higher than inlet pressure at port S, but not higher than pL max.A case drain line to the reservoir is required.

▼ Rate of pressure change RA max

Time t

Pres

sure

p

▼ Maximum permissible speed (limit speed) Permissible speed by increasing inlet pressure pabs at suction opening S or at Vg ≤ Vgmax

Displacement Vg/Vgmax

Spee

d n/

n max

Inle

t pr

essu

re p

abs b

ar

▼ Pressure definition

Pres

sure

p

Single operating period

Minimum pressure (high pressure side)

Maximum pressure pmax

Nominal pressure pnom

Time t

Total operating period = t1 + t2 + ... + tn

NoteOperating pressure range valid when using hydraulic fluids based on mineral oils. Please contact us for values for other hydraulic fluids.

pnom

∆t

∆p

1.00.90.80.7

1.2

1.1

1.0

0.9

1.6

1.4

1.2

1.0

0.9

0.8


8 A10VO series 52 and 53 | Axial piston variable pumpTechnical data

Technical data

Size NG 10 18 28 45 601) 632) 72 85 100

Displacement, geometric, per revolution Vg max cm3 10.5 18 28 45 60 63 72 85 100

Maximum rotational speed3)

at Vg max nnom min–1 3600 3300 3000 26004) 2700 2600 2600 2500 2300

at Vg <Vg max nmax

perm

min–1 4320 3960 3600 3120 3140 3140 3140 3000 2500

Flow at nnom and Vg max qv l/min 37 59 84 117 156 163 187 212 230

at nE = 1500 rpm qvE l/min 15 27 42 68 90 95 108 128 150

Power at 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

T Nm 42 71 111 179 238 250 286 338 398

at Vg max and Δp = 100 bar

T Nm 17 29 45 72 95 100 114 135 159

Rotary stiffness of 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 – –

U c Nm/rad 6800 8000 – 30000 49200 49200 49200 102900 102900

W c Nm/rad – – – 34400 54000 54000 54000 117900 117900

P c Nm/rad 10700 13100 – – – – – – –

Moment of inertia for rotary group JTW kgm2 0.0006 0.0009 0.0017 0.003 0.0056 0.0056 0.0056 0.012 0.012

Maximum angular acceleration5) 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.) m kg 8 11.5 15 18 22 22 22 36 36

Weight with through drive (approx.) – 13 18 24 28 28 28 45 45

Determining the operating characteristics

Flow qv =Vg × n × ηv

[l/min]1000

Torque T = Vg × Δp

[Nm]20 × π × ηmh

Power P =2 π × T × n

=qv × Δp

[kW]60000 600 × ηt

Key

Vg = Displacement per revolution [cm3]

Δp = Differential pressure [bar]

n = Rotational speed [rpm]

ηv = Volumetric efficiency

ηmh = Mechanical-hydraulic efficiency

ηt = Total efficiency (ηt = ηv × ηmh)

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. We recommend testing the loads by means of experiment or calculation / simulation and compari-son with the permissible values.

▶ Transport and storage – θmin ≥ –50 °C – θopt = +5 °C to +20 °C

1) Only series 522) Only series 533) The values are applicable:

‒ At absolute pressure pabs = 1 bar at suction port S ‒ For the optimal viscosity range of νopt = 36 to 16 mm2/s ‒ For hydraulic fluid based on mineral oils

4) Please contact us regarding higher speeds

5) The scope of application lies between the minimum necessary and the maximum permissible drive speeds. It applies for external stim-uli (e. g. engine 2 to 8 times rotary frequency, cardan shaft twice the rotary frequency). The limiting value is only valid for a single pump. The loading capacity of the connecting parts must be taken into account.


Axial piston variable pump | A10VO series 52 and 53 Technical data

9

TE

TD

T1 T2

T3

Permissible radial and axial forces on the drive shaft

Size NG 10 18 28 45 60/63 72 85 100

Radial force maximum at a/2 ± Fq max N 250 350 1200 1500 1700 1500 2000 2000

Axial force maximum± Fax

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

Note ▶ The values given are maximum values and do not apply

to continuous operation. For drives with radial loading (pinion, V-belt drives), please contact us!

Permissible input and through-drive torques

Size 10 18 28 45 60/63 72 85 100

Torque at Vg max and Δp = 250 bar1) T max Nm 42 71 111 179 250 321 338 398

Input torque at drive shaft, maximum2)

S TE max Nm 126 124 198 319 630 630 1157 1104

Ø in 3/4 3/4 7/8 1 1 1/4 1 1/4 1 1/2 1 1/2

R TE max Nm – 160 250 400 650 650 – –

Ø in – 3/4 7/8 1 1 1/4 1 1/4 – –

U TE max Nm 60 59 105 188 306 306 628 595

Ø in 5/8 5/8 3/4 7/8 1 1 1 1/4 1 1/4

W TE max Nm – – 140 220 396 383 650 636

Ø in – – 3/4 7/8 1 1 1 1/4 1 1/4

P TE max Nm 90 88 137 200 – – – 857

Ø mm 18 18 22 25 – – – 40

Maximum through-drive torque

S TD max Nm – 108 160 319 484 484 698 778

R TD max Nm – 120 176 365 484 484 – –

U TD max Nm – 59 105 188 306 306 628 595

W TD max Nm – – 140 220 396 383 650 636

P TD max Nm – 88 137 200 – – – 778

▼ Distribution of torques

1st pump 2nd pump

Torque at 1st pump T1

Torque at 2nd pump T2

Torque at 3rd pump T3

Input torque TE = T1 + T2 + T3

TE < TE max

Through-drive torque TD = T2 + T3 TD < TD max

Fq

a

a/2 a/2

1) Without considering efficiency2) For drive shafts with no radial force


10 A10VO series 52 and 53 | Axial piston variable pumpDR – Pressure control

DR – Pressure control

The pressure control limits the maximum pressure at the pump outlet within the control range of the variable pump. The variable pump only supplies as much hydraulic fluid as is required by the consumers. If the operating pressure exceeds the pressure setting at the pressure valve, the pump will regulate to a smaller displacement to reduce the control differential.

▶ Basic position in depressurized state:Vg max. ▶ Setting range1) for pressure control 35 to 250 bar.

Standard is 250 bar.

▼ Characteristic curve DR

250

qv min qv max

35

Ope

ratin

g pr

essu

re p

B [

bar]

Flow qV [l/min]

Hys

tere

sis/

pres

sure

ris

e Δp

max

Characteristic curve valid for n1 = 1500 rpm and tfluid = 50 °C.

▼ Circuit diagram: DR

SL2

BL1L

Controller data

NG 10 18 28 45 6063

72 85 100

Pressure increase

Δp [bar] 6 6 6 6 8 8 12 14

Hysteresis and repeat-ability

Δp [bar] maximum 3

Control fluid consumption

l/min maximum approx. 3

1) In order to prevent damage to the pump and the system, the per-missible setting range must not be exceeded. The range of possi-ble settings at the valve is higher.


Axial piston variable pump | A10VO series 52 and 53 DRG – Pressure control remotely operated

11

DRG – Pressure control remotely operated

For the remote-controlled pressure control, the target pressure can be set using a separately arranged pressure relief valve. Pressure control DR see page 10.A pressure relief valve can be externally piped to port X for remote setting of pressure below the setting of the DR control valve spool. This relief valve is not included in the delivery contents of the pump.The differential pressure at the DRG control valve is set as standard to 20 bar. This results in a pilot oil flow to the relief valve of approx. 1.5 l/min at port X. If another setting is required (range from 10-22 bar) please state in clear text.As a separate pressure relief valve we can recommend:DBDH 6 (hydraulic) to RE 25402 orDBETR-SO 381 with orifice Ø 0.8 mm in P (electric) to RE 29166.The max. length of piping should not exceed 2 m.



▼ Characteristic curve DRG

250

qv min qv max

20

Ope

ratin

g pr

essu

re p

B [

bar]

Flow qV [l/min]

Hys

tere

sis/

pres

sure

ris

e Δp

max

Characteristic curve valid at n1 = 1500 rpm and tfluid = 50 °C.

▼ Circuit diagram DRG

SL2

BL

X

L1

Controller data

NG 10 18 28 45 6063

72 85 100

Pressure increase

Δp [bar] 6 6 6 6 8 8 12 14


Δp [bar] maximum 3


l/min maximum approx. 4.5



12 A10VO series 52 and 53 | Axial piston variable pumpDRF (DFR) / DRS (DFR1) / DRSC – Pressure and flow control

DRF (DFR) / DRS (DFR1) / DRSC – Pressure and flow control

In addition to the pressure control function (see page 10), a variable orifice (e.g. directional valve) is used to adjust the differential pressure upstream and down-stream of the orifice. This is used to control the pump flow. The pump flow is equal to the actual required flow by the consumer, regardless of changing pressure levels. The pressure control overrides the flow control function.



▼ Characteristic curve DRF (DFR) / DRS (DFR1) / DRSC

250

qv min qv max

35

0

Ope

ratin

g pr

essu

re p

B [

bar]

Flow qV [l/min]

Hys

tere

sis/

pres

sure

ris

e Δp

max

▼ Characteristic curve at variable speed

qV max

qV min

n0

n maxSpeed n [rpm]

Flow

qV [

l/m

in]

Hys

tere

sis/

Pres

sure

incr

ease

Δq V

max

Characteristic curves valid for n1 = 1500 rpm and tfluid = 50 °C.

Possible connections at port B (not included in the delivery contents)

LS mobile control blocks Data sheets

M4-12 64276

M4-15 64283

LUDV mobile control blocks

M6-15 64284

M7-22 64295

▼ DRF (DFR) schematic

SL2

BL

X

1

L1

Plugged at DRS (DFR1) / DRSC valve

1 The metering orifice (control block) and the line is not included in the delivery contents.

NoteThe DRS (DFR1) and DRSC valve versions have no pilot line between X and the reservoir.Unloading the LS-pilot line must be possible in the valve system.Because of the flushing function sufficient unloading of the flow control in DRS (DFR1) control valve X-line must also be provided.If the unloading of the X line does not have to be guaran-teed, the DRSC control valve must be used.

For further information see page 13



Axial piston variable pump | A10VO series 52 and 53 DRF (DFR) / DRS (DFR1) / DRSC – Pressure and flow control

13

Differential pressure ∆p: ▶ Standard setting: 14 to 22 bar.

If another setting is required, please state in clear text.Relieving the load on port X to the reservoir results in a zero stroke (“standby”) pressure which lies about 1 to 2 bar higher than the differential pressure ∆p).No account is taken of system influences.

Controller data ▶ DR Pressure control data see page 10. ▶ Maximum flow deviation measured at drive speed

n = 1500 rpm.

NG 10 18 28 45 60 63

72 85 100

Flow deviation

Δq vmax [l/min]

0.5 0.9 1.0 1.8 2.5 2.5 3.1 3.1


Δp [bar] maximum 3


l/min maximum approx. 3 to 4.5 (DRF (DFR)) maximum approx. 3 (DRS (DFR1) / DRSC)


14 A10VO series 52 and 53 | Axial piston variable pumpLA... – Pressure, flow and power control

LA... – Pressure, flow and power control

Pressure control equipped as DR(G), see page 10 (11).

Equipment of the flow control like DRS (DFR1), see page 12.In order to achieve a constant drive torque with varying operating pressures, the swivel angle and with it the vol-ume flow from the axial piston pump is varied so that the product of flow and pressure remains constant. Flow con-trol is possible below the power control curve. When

ordering please state the power characteristics to be set ex works in clear text, e.g. 20 kW at 1500 rpm.Control data

▶ For technical data of pressure control DR see page 10.

▶ For technical data of flow control FR see page 12. ▶ Control fluid consumption max. approx. 5.5 l/min

Torque T [Nm] for nominal size

Start of control 18 28 45 63 72 85 100 Order code

10 to 35 bar 3.8 – 12.1 6 – 19 10 – 30 15 – 43 17 – 49.2 20 – 57 24 – 68 LA5

36 to 70 12.2 – 23.3 19.1 – 36 30.1 – 59 43.1 – 83 49.3 – 94.9 57.1 – 112 68.1 – 132 LA6

71 to 105 23.4 – 33.7 36.1 – 52 59.1 – 84 83.1 – 119 95.0 – 136.0 112.1 – 160 132.1 – 189 LA7

106 to 140 33.8 – 45 52.1 – 70 84.1 – 112 119.1 – 157 136.1 – 179.4 160.1 – 212 189.1 – 249 LA8

141 – 230 45.1 – 74.8 70.1 – 117 112.1 – 189 157.1 – 264 179.5 – 301.7 212.1 – 357 249.1 – 419 LA9

Conversion of the torque values in power [kW]

P=T

[kW] (at 1500 rpm) or P=2 x T x n

[kW] (rotational speeds, see table on page 8)6.4 60000

▼ Characteristic curve LA.DS

0 100

0

50

100

150

200

250

300

0 100

∆qV

LA9

LA8

LA7

LA5

LA6

LA9

LA8

LA7

LA5

LA6

Volume flow qV [%]

Ope

ratin

g pr

essu

re p

B [b

ar]

Torq

ue T

[Nm

]

Volume flow qV [%]

▼ Circuit diagram LA.DS (for further combination options with LA.. see page 15)

SL2

BL

X X

L1

1



Axial piston variable pump | A10VO series 52 and 53 LA... – Variations

15

LA... – Variations

▼ Circuit diagram LA.D with pressure cut-off

SL2

BL L1

▼ Circuit diagram LA.DG with pressure cut-off, remotely operated

SL2

BL L1

1

XX


▼ Circuit diagram LA.S with separate flow control

SL2

BL

X

L1

1



16 A10VO series 52 and 53 | Axial piston variable pumpED – Electro-hydraulic pressure control

ED – Electro-hydraulic pressure control

The ED valve is set to a certain pressure by a specified variable solenoid current.When a change is made at the consumer (load pressure), the position of the control piston will shift.This causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level.The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current.As the solenoid current signal drops towards zero, the pressure will be limited to pmax by an adjustable hydraulic pressure cut-off (secure fail safe function in case of a loss of power, e.g. for fan drives ). The response time character-istic curve of the ED-control was optimized for the use as a fan drive system. When ordering, specify the type of appli-cation in clear text.

▼ Static current-pressure characteristic curve ED (negative characteristic curve measured with pump in zero stroke)

250

0 I/Imax1

ED

140

Amperage

Ope

ratin

g pr

essu

re p

B [

bar] De-activation of

control

Min. adjustable control pressure

Max. adjustable control pressure

▶ Hysteresis static < 3 bar.

▼ Flow-pressure characteristic curve

250

qv min qv max

140

Max

imum

ope

ratin

g pr

essu

re P

[ba

r](d

e-en

ergi

zed)

Sett

ing

rang

e

Flow qV [l/min]

Hys

tere

sis/

pres

sure

ris

e Δp

max

< 4

bar

▶ Characteristic curves valid for n1 = 1500 rpm and tfluid = 50 °C.

▶ Pilot fluid consumption: 3 to 4.5 l/min. ▶ Standby standard setting 23 bar. Other values on

request.

▼ Influence of the pressure setting on standby (maximally energized)

30

28

34

32

26

24

22

2018

1614

120 140 160 180 200 220 240250

Maximum pressure setting [bar]

Stan

dby

[bar

] ▼ Circuit diagram ED71/ED72

SL2

BL

X

L1

Technical data, solenoid ED71 ED72

Voltage 12 V (±20%) 24 V (±20%)

Control current

Start of control at p min 100 mA 50 mA

End of control at p max 1200 mA 600 mA

Limiting current 1.54 A 0.77 A

Nominal resistance (at 20 °C) 5.5 Ω 22.7 Ω

Dither frequency 100 to200 Hz

100 to200 Hz

Actuated time 100% 100%

Type of protection: see connector version page 60

Operating temperature range at valve -20 °C to +115 °C


Axial piston variable pump | A10VO series 52 and 53 ER – Electro-hydraulic pressure control

17

ER – Electro-hydraulic pressure control

The ER valve is set to a certain pressure by a specified variable solenoid current.When a change is made at the consumer (load pressure), the position of the control piston will shift.This causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level.The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current.As the solenoid current signal drops towards zero, the pressure will be limited to pmin (stand by).Observe the project planning notes on page 2.

▼ Static current-pressure characteristic curve ER (positive characteristic curve measured with pump in zero stroke)

0 10

5014

150

250

350

Current I/Imax

Maximum adjustable control pressure

Minimum adjustable control pressure

Ope

ratin

g pr

essu

re p

B [b

ar]

▶ Hysteresis static current-pressure characteristic curve < 3 bar.

▶ Influence of pressure setting on stand-by ± 2 bar

▼ Flow-pressure characteristic curve

250

qv min qv max

140

Max

imum

ope

ratin

g pr

essu

re P

[ba

r]

(ful

ly e

nerg

ized

)

Sett

ing

rang

e

Flow qV [l/min]

Hys

tere

sis/

pres

sure

ris

e Δp

max

< 4

bar

▶ Characteristic curves valid for n1 = 1500 rpm and tfluid = 50 °C.

▶ Pilot fluid consumption: 3 to 4.5 l/min. ▶ Standby standard 14 bar. Other values on request.

▼ Circuit diagram ER71/ER72

SL2

BL

X

L1

Technical data, solenoid ED71 ED72

Voltage 12 V (±20%) 24 V (±20%)

Control current

Start of control at p min 100 mA 50 mA

End of control at p max 1200 mA 600 mA



Dither frequency 100 to200 Hz

100 to200 Hz





18 A10VO series 52 and 53 | Axial piston variable pumpEP – Electro-proportional control

EP – Electro-proportional control

Electro-proportional control makes a stepless and repro-ducible setting of the pump displacement possible directly via the swashplate. The control force of the control piston is applied by a proportional solenoid. The control is propor-tional to the current (for start of control, see table right).In a depressurized state, the pump is swiveled to its initial position (Vg max) by an adjusting spring. If the operating pressure exceeds 14 bar, the pump will swivel from Vg max to Vg min without control by the solenoid (control current < start of control). With a minimum swivel angle Vg min and de-energized EP solenoids, a minimum pressure of 10 bar must be maintained, or alternatively a minimum amount of 5% of the displacement. A PWM signal is used to control the solenoid.

EP.D: The pressure control regulates the pump displace-ment back to Vg min after the set target pressure has been reached.We recommend the valve with flushing function for the EP.D control variant. Please contact us.A minimum operating pressure of 14 bar is needed for control. The necessary control fluid is taken from the high pressure.

▼ Characteristic curve EP1/2 Hysteresis < 5%

Displacement [%]

Con

trol

cur

rent

I [

mA]


▶ Influence of pressure setting on stand-by ± 2 bar.

▼ Circuit diagram EP.D

SL2

BL L1

Technical data, solenoid EP1 EP2

Voltage 12 V (±20%) 24 V (±20%)

Control current

Beginning of control at Vg min 400 mA 200 mA

End of control at Vg max 1200 mA 600 mA



Dither frequency 100 to 200 Hz

100 to 200 Hz




Note!The spring return at the controller is not a safety deviceThe controller may block in an undefined position due to contamination (contaminated hydraulic fluid, abrasion or residual contamination from system components). The volume flow of the axial piston unit will then no longer follow the commands of the operator.Check whether your application requires that remedial measures be taken on your machine in order to bring the driven consumer into a safe position (e. g. immediate stop)

0 1.00.5

200

400

Vg min Vg max

600

800

1000

1200

1400

EP1

EP2


Axial piston variable pump | A10VO series 52 and 53 EK – Electro-proportional control with controller cut-off

19

EK – Electro-proportional control with controller cut-off

Variant EK... is based completely on the variant EP... (see page 18).In addition to the electro-proportional control function, a controller cut-off is integrated in the electric characteris-tic curve. The pump then swivels to Vg max if the pilot signal is lost (e.g., cable break) and then if needed works with the DRF settings if necessary (see page 12). The controller cut-off is only intended for short-term use and not for permanent use if the control signal is lost. If the control signal is lost, the pump swivel times will be increased by the EK valve A PWM signal is used to control the solenoid. A minimum operating pressure of 50 bar is needed for electro-proportional control with controller cut-off. For lower pres-sures, a pilot signal of > 500 mA (EK2) or > 1,000 mA (EK1) is required in order to avoid undesired controller cut-off. The necessary control fluid is taken from the high pressure.The Vg max position is maintained by the force of the adjust-ing spring. To overcome the force of this spring, the sole-noid must be subjected to excessive current (Ires).We recommend the valve with flushing function for the EK.D control variant. Please contact us.Observe the instructions regarding the project design on page 2

▼ Characteristic curve EK1/2 Hysteresis < 5%

Displacement [%]

Con

trol

cur

rent

I [

mA]


▶ Influence of pressure setting on stand-by ± 2 bar. ▶ For changes in current, ramp times of > 200 ms must be

observed.

▼ Circuit diagram EK.DF

SL2

BL L1

Technical data, solenoid EK1 EK2

Voltage 12 V (±20%) 24 V (±20%)

Control current

Beginning of control at Vg min 400 mA 200 mA

End of control at Vg max 1200 mA 600 mA



Dither frequency 100 to 200 Hz

100 to 200 Hz




EK1 EK2

Imin [mA] 400 200

Imax [mA] 1200 600

Ioff [mA] < 300 < 150

Ires [mA] > 1200 > 600

Note!The spring return at the controller is not a safety deviceThe controller may block in an undefined position due to contamination (contaminated hydraulic fluid, abrasion or residual contamination from system components). The volume flow of the axial piston unit will then no longer follow the commands of the operator.Check whether your application requires that remedial measures be taken on your machine in order to bring the driven consumer into a safe position (e. g. immediate stop)

0 1.00.5

200

400

600

800

1000

1200

1400

Ires

Ires

Ioff

Imin

Imin

Ioff

EK1

EK2


20 A10VO series 52 and 53 | Axial piston variable pumpEP(K).DF / EP(K).DS / EP(K) – with pressure and flow control

EP(K).DF / EP(K).DS / EP(K) – with pressure and flow control

A hydraulic pressure flow control is superimposed on the electro-proportional control.The pressure control regulates the pump displacement back to Vg min after the set target pressure has been reached.This function is super-imposed on the EP or EK control, i.e. the control-current dependent function is executed below the target pressure.Setting range from 20 to 250 bar. For the pressure flow control, see page 12.Pressure control has priority over electro-proportional control and flow control.With flow control, the pump flow can be influenced in addition to pressure control. The pump flow is thus equal to the actual amount of hydraulic fluid required by the consumer. This is achieved using the differential pressure at the consumer (e.g. orifice).The EP.DS or EK.DS version has no connection between X and the reservoir (load sensing). Please refer to the notes on page 12.

▼ Circuit diagram EP.D

SL2

BL L1


▼ Circuit diagram EP.DF

SL2

BL L1

X

1

▼ Circuit diagram EP.DS

SL2

BL L1

X

1


Axial piston variable pump | A10VO series 52 and 53 EP.ED / EK.ED – with electro-hydraulic pressure control

21

EP.ED / EK.ED – with electro-hydraulic pressure control

The ED valve is set to a certain pressure by a specified variable solenoid current.When a change is made at the consumer (load pressure), the position of the control piston will shift.This causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pres-sure level.The pump thus only delivers as much hydraulic fluid as the consumers can take. The pressure can be set steplessly by the solenoid current.As the solenoid current signal drops towards zero, the pressure will be limited to pmax by an adjustable hydraulic pressure cut-off (negative characteristic curve, e.g. for fan drives ). A PWM signal is used to control the solenoid.For further information and technical data of the solenoids for ED(ER) control please refer to pages 16 to 19.

▼ Circuit diagram EP.ED

SL2

BL L1

X

▼ Circuit diagram EK.ED

SL2

BL L1

X



22 A10VO series 52 and 53 | Axial piston variable pumpDimensions, size 10

Dimensions, size 10

DR – Pressure control; centering flange SAE version

180148

24

L1

45°

73

L

51 5128.6 28.6

B S

53.5

ø 11

106.4134

45°

956

56

5128.6

5128.6

S B

max. 110

Y

ø 82

.55

-0.0

540

116.4Flange

ISO 3019-1

▼ View Y Valve mounting for clockwise rotation

▼ View Y Valve mounting for counter-clockwise rotation


Axial piston variable pump | A10VO series 52 and 53 Dimensions, size 10

23

Dimensions, size 10

DR – Pressure control; centering flange metric version

180148

24

L1

45°

73

L

51 5128.6 28.6

B S

53.5

ø 11

109134

45°

956

56

5128.6

5128.6

S B

max. 110

Y

ø 80

-0.0

460

116.4Flange

ISO 3019-2

▼ View Y Valve mounting for clockwise rotation

▼ View Y Valve mounting for counter-clockwise rotation



Dimensions [mm]

▼ Splined shaft 3/4 in (SAE J744) ▼ Splined shaft 5/8 in (SAE J744)

S ‒ 11T 16/32DP1) U ‒ 9T 16/32DP1)

38

14

5

30

21

1/4-

20UN

C-2B

2) 4

)

ø22

31.8

ø22

15.8

23.8

▼ Parallel keyed shaft DIN 6885

P ‒ A6x6x25

ø18

20.5

-0.2

36

2

28 + 0.3

25

-0.0

04+0

.009

Ø22

Ports Standard Size4) pmax abs [bar]5) State8)

B Working port DIN 3852 M27 × 2; 16 deep 315 O

S Suction port DIN 3852 M27 × 2; 16 deep 5 O

L Drain port DIN 38526) M16 × 1.5; 12 deep 2 O7)

L1 Drain port DIN 38526) M16 × 1.5; 12 deep 2 X7)

L Drain port DIN 119266) 9/16-18UNF-2B; 10 deep 2 O7)

L1 Drain port DIN 119266) 9/16-18UNF-2B; 10 deep 2 X7)

X with adapter Control pressure DIN 3852 M14 × 1.5; 12 deep 315 O

X without adapter

Control pressure DIN ISO 228 7/16-20UNF-2B; 11.5 deep 315 O

Centering 3)

R3 15x6.7DIN 332

1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5

2) Thread according to ASME B1.13) Coupling axially secured, e.g. with a clamp coupling or radially

mounted clamping screw4) Observe the project planning notes on page 64 concerning the

maximum tightening torques.

5) Depending on the application, momentary pressure spikes can occur. Keep this in mind when selecting measuring equipment and fittings

6) The spot face can be deeper than as specified in the standard.7) Depending on the installation position, L or L1 must be connected

(also see installation instructions starting on page 61).8) O = Must be connected (plugged on delivery) X = Plugged (in

normal operation)

Centering 3)

R3 15x6.7DIN 332

Key width 6

25



Dimensions [mm]

▼ DRG – Pressure control, remotely operated (metric)1) ▼ DFR/DFR1 – Pressure, flow control (metric)1)

180L1

X

117

110

131

L

40X

max. 110

180L1

X

117

110

131

L

40X

max. 110

▼ DRG – Pressure control, remotely operated (SAE)1) ▼ DFR/DFR1 – Pressure, flow control (SAE)1)

179L1

X

102

95

146 40 X

L

179L1

X

102

95

146 40 X

L

1) Valve mounting for clockwise or counter-clockwise rotation see page 11 and 12



Dimensions [mm]

Dimensions, size 18

DR – Hydraulic pressure controller; Clockwise rotation, series 53

3332

Ø32

58.7

Ø20

47.6

22.230.2

61.5

61.5

2.545°

45°

11

106.4136

6372

122

24.57.8 10

83156max. 183

83

Ø82

.55

- 0.0

54Ø

82.5

5- 0

.054

00

S B

L

L

L1

X

Ø32

58.7

170143

30.2

S

Y

56.556.5

Ø20

47.6

22.2B

Z

24.57.8 10

83

L

L1

L1

L2

1) Dimensions of working ports turned through 180° for counter-clockwise rotation

View X1)

View Y1)

Detail Z

Flange ISO 3019-1

Flange ISO 3019-1

▼ Port plate 11

▼ Port plate 12

27



Dimensions [mm]


S ‒ 11T 16/32DP1) R ‒ 11T 16/32DP1)2)

38

14

5

30

21

1/4-

20UN

C-2B

4) 5

)

Ø22

1/4-

20UN

C-2B

4)5)

14

5

38

21

Ø22

▼ Splined shaft 5/8 in (SAE J744) ▼ Parallel keyed shaft DIN 6885

U ‒ 9T 16/32DP1) P ‒ A6x6x25

31.8

ø22

15.8

23.8

ø18

20.5

-0.2

36

2

28 + 0.3

25

-0.0

04+0

.009

Ø22


B Working port (Standard pressure series)Fastening thread

SAE J5187)

DIN 133/4 inM10 × 1.5; 17 deep

315 O

S Suction port (standard pressure series)Fastening thread

SAE J5187)

DIN 131 1/4 inM10 × 1.5; 17 deep

5 O

L Drain port DIN 119268) 3/4-16UNF-2B; 12 deep 2 O9)

L1, L210) Drain port DIN 119268) 3/4-16UNF-2B; 12 deep 2 X9)

X Control pressure DIN 11926 7/16-20UNF-2A; 11.5 deep 315 O

Usable shaft length


2) Splines according to ANSI B92.1a, run out of spline is a deviation from standard.

3) Center bore according to DIN 3324) Thread according to ASME B1.15) Observe the project planning notes on page 64 concerning the

maximum tightening torques.

6) Depending on the application, momentary pressure spikes can occur. Keep this in mind when selecting measuring equipment and fittings

7) Metric fixing thread is a deviation from standard8) The spot face can be deeper than as specified in the standard.9) Depending on the installation position, L, L1 or L2 must be

connected (also see installation instructions starting on page 61).10) Only series 5311) O = Must be connected (plugged on delivery) X = Plugged (in

normal operation)

Centering 3)

R3 15x6.7DIN 332

Centering 3)

R3 15x6.7DIN 332

Key width 6



Dimensions [mm]

▼ DRG – Pressure controller, remote controlled, series 53 ▼ EP.D. / EK.D. – Electro-proportional control, series 53

113

106

62

122

max. 183

X

S

L

L2

L1

106

62

L

L1

L2

218.5113

XX

S

122

▼ DRF/DRS – Pressure and flow control, series 53 ▼ EP.ED. / EK.ED. – Electro-prop. control, series 53

113

106

62

122

max. 183

X

S

L

L2

L1

L

L1

L2

220

X

122

110

▼ LA.D. – Pressure, flow and power control, series 53 ▼ ED7. / ER7. – Electro-prop. pressure control, series 53

106

62

113

122

113225

X

S

L

L2

L1

S

1221)

214

L

L1

L2

1) ER7.: 157 mm if using an intermediate plate pressure controller

29



Dimensions [mm]

Dimensions, size 28

DR – Hydraulic pressure controller; Clockwise rotation, series 522)ø1

01.6

-0.0

540

7.9

73

14.3

max. 209.5

27170

6.3

12

90

123.

5

146172

45°

69X

58.7

30.2

L

L1

L

107

9.5

66

ø20

47.6

33

22.2

33

ø32

S B

S

16030.2

L

L1

6.3

1290

9.5

max. 209.5

ø32 Y

58.7

27

S

ZB

66 66

22.2

47.6

ø20

B

ø101

.6-0

.054

0

1) Dimensions of working ports turned through 180° for counter-clockwise rotation2) Primary dimensions for pump apply to series 52 and 53

Detail Z

View X1)

View Y1)

Flange ISO 3019-1

Flange ISO 3019-1

▼ Port plate 11

▼ Port plate 12



Dimensions [mm]


S ‒ 13T 16/32DP1) R ‒ 13T 16/32DP1)2)

41

165

33.1

25.1

1/4-

20U

NC

-2B

3) 4

)

1/4-

20U

NC

-2B

3)4) 16

41

25

5


B Working port (Standard pressure series) Fixing thread

SAE J5186)

DIN 133/4 inM10 × 1.5; 17 deep

315 O


SAE J5186)

DIN 131 1/4 inM10 × 1.5; 17 deep

5 O

L Drain port ISO 119267) 3/4-16UNF-2B; 12 deep 2 O8)

L1, L29) Drain port ISO 119267) 3/4-16UNF-2B; 12 deep 2 X8)

X Control pressure ISO 11926 7/16-20UNF-2B; 11.5 deep 315 O



3) Thread according to ASME B1.14) Observe the project planning notes on page 64 concerning the

maximum tightening torques.5) Depending on the application, momentary pressure spikes can occur.

Keep this in mind when selecting measuring equipment and fittings

6) Metric fixing thread is a deviation from standard7) The spot face can be deeper than as specified in the standard.8) Depending on the installation position, L, L1 or L2 must be con-

nected (also see installation instructions starting on page 61).9) Only for series 5310) O = Must be connected (plugged on delivery) X = Plugged

(in normal operation)

Usable shaft length

31



Dimensions [mm]


139.5

L

L1

max. 209.5

S

63

L

123.

5 X

107

114

63

L

L1

L2

224140

XX

S

130

▼ DFR/DFR1 – Pressure and flow control, series 52 ▼ EP.ED. / EK.ED. – Electro-prop. control, series 53

139.5

L

L1

max. 209.5

S

63

L

123.

5 X

107 L

L1

L2

240

X

130

117

▼ LA.D. – Pressure, flow and power control, series 53 ▼ ED7. / ER7. – Electro-prop. Pressure control, series 52

L

L1

L2

231140

X

130

S

63

114

L1

L

S 1301)

X

240




Dimensions [mm]

Dimensions, size 45

DR – Hydraulic pressure controller; Clockwise rotation, series 523)Ø

101.

6-0

.054

0Ø

101.

6-0

.054

0

52.4

Ø25

B

26.2

B

S

72

90

2112)

1782)

L

L1

99150.5

131.

5

45°

78

172146

306.3129.5

35.7

max. 220.5

ø38

69.9

S

14.3 77

68.5

BS Z

90 90

Y

max. 220.5

30

189

L

L1

6.312

999.5

38

BSø2

552

.4

30°

ø38

35.726.2

38

69.9

30°

X

1) Dimensions of working ports turned through 180° for counter-clockwise rotation2) For dimensions of working ports S and B for port plate 13, please refer to port plate 12, footnote 2).3) Primary dimensions for pump apply to series 52 and 53

View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

▼ Port plate 13 counter-clockwise rotation2)

Flange ISO 3019-1

Flange ISO 3019-1

33



Dimensions [mm]

▼ Splined shaft 1 in SAE J744 ▼ Splined shaft 1 in SAE J744

S ‒ 15T 16/32DP1) R ‒ 15T 16/32DP1)2)

45.9

165

38

30

1/4-

20U

NC

-2B

3) 4

)

1/4-

20U

NC

-2B

3) 4

) 16

45.9

29.5

5

▼ Splined shaft 7/8 in SAE J744 ▼ Splined shaft 7/8 in SAE J744

U ‒ 13T 16/32DP1) W ‒ 13T 16/32DP1)

41

165

33.1

25.1

1/4-

20U

NC

-2B

3) 4

)

1/4-

20U

NC

-2B

3) 4

) 16

41

25

5



SAE J5186)

DIN 131 inM10 × 1.5; 17 deep

315 O


SAE J5186)

DIN 131 1/2 inM12 × 1.75; 20 deep

5 O



X Control pressure ISO 11926 7/16-20UNF-2A; 11.5 deep 315 O







nected (also see installation instructions starting on page 61).9) Only series 5310) O = Must be connected (plugged on delivery) X = Plugged


Usable shaft length

Usable shaft length



Dimensions [mm]


L

L1

150.5

131.

5

max. 220.568

X

S

115

116

35

L

L1

L2

228146 68

XX

132.

5

S


L

L1

150.5

131.

5

max. 220.568

X

S

115

36

119

85

L

L1

L2

246

X

S 133


116.

4

68

L

L1

L2

235146

X

S

X

133

X

S

1321) L

L1

250

LL


35



Dimensions [mm]

Dimensions, size 60

DR – Hydraulic pressure controller; Clockwise rotation, mounting flange C series 52

78

42.9

S

L

201.5239.5

Ø50

77.8

B

52.4

26.2

Ø25

6.39.5

45°

Z

X

Y

15

X

117

146172

137

L

L

L1

78.5

40

72 72

14.3

87

BS

Ø10

1.6

-0.0

540

Ø10

1.6

-0.0

540

max. 220.5

33 46

52.4

Ø25

Ø50

77.8

42.9 26.2

S B

9.5

15

X

208

117

max. 220.5

40

BS


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1



Dimensions [mm]

Dimensions, size 60

DR – Hydraulic pressure controller; Clockwise rotation, mounting flange D series 52

max. 220.5

max. 220.5

72 72

78

B

L

52.4

26.2

Ø25

12.7

Z

X

Y

114.

5

148

137.

4

87

45°

78.5

146114.5

117

40

42.9

S

201.5239.5

Ø50

77.8

15

14.3

BS

X

L

L

L1

Ø25

52.4

208

33

Ø50

77.8

42.9 26.2

S

B

46

12.7

6

Ø12

7

-0.0

630

Ø12

7-0

.063

0

117

40X

15


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1

37



Dimensions [mm]

Dimensions, size 63


72 72

ZY

X

max. 220.5

111

115.5

39

89

146172

L1L1

L

L2

79

43°

88

45°77

.5

15

9.56.3

BS

14.3

140.

4

239.5

S

42.9

77.8

Ø50

201.5

115.5

B

52.4

26.2

Ø25

Ø10

1.6

-0.0

540

Ø50

77.8

42.9 26.24633

max. 220.5

115.5

BS

BS

Ø25

52.4

208.2

115.5

Ø10

1.6

-0.0

540


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1



Dimensions [mm]

Dimensions, size 63


239.5

S

42.9

77.8

Ø50

201.5

B

52.4

26.2

Ø25

72 72

146

151max. 220.5

6.3

146

14

114.5

114.

5

ZY

X

115.5

39

89

L1

L1

L

L2

79

43°

150

88

45°77

.5

12.7

BS

140

111

45° 45°

X

115.5

208

151max. 220.5

15

15

6.3

115.5

39L1

Ø12

7-0

.063

0Ø

127

-0.0

630

12.7X

115.5

Ø25

52.4

S B

4633

Ø5077.8

42.9 26.2


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1

39


Dimensions [mm] Axial piston variable pump | A10VO series 52 and 53Dimensions, nominal size 60/63

▼ Splined shaft 1 1/4 in SAE J744 ▼ Splined shaft 1 1/4 in SAE J744

S ‒ 14T 12/24DP1) R ‒ 14T 12/24DP1)2)

55.4

195

47.5

39.5

5/16

-18U

NC

-2B

3) 4

)

5/16

-18U

NC

-2B

3) 4

)

19

55.4

38

5


U ‒ 15T 16/32DP1) W ‒ 15T 16/32DP1)

45.9

165

33.1

25

1/4-

20U

NC

-2B

3) 4

)

1/4-

20U

NC

-2B

3) 4

) 16

45.9

29

5



SAE J5186)

DIN 131 inM10 × 1.5; 17 deep

315 O


SAE J5186)

DIN 132 inM12 × 1.75; 20 deep

5 O












Usable shaft length

Usable shaft length


40 Dimensions [mm]A10VO series 52 and 53 | Axial piston variable pump Dimensions, nominal sizes 60/63


S

150.5

X

137

LL1L1

121

65Xmax. 220.5

151241

125

L1

L

L2

X 35.6

140.

4

X

115.5 64.8

123.

9

S


S

150.5

X

137

LL1L1

121

65Xmax. 220.5

250.5

125

L1

L

L2

36

140.

4

115.5 82

S

X


L1

L

L2

140

128

24765

S

X

124

X

150 251

1371)

SL

L1

L1

L


41



Dimensions [mm]

Dimensions, size 72


72 72

ZY

X

max. 220.5

111

115.5

39

89

146172

L1L1

L

L2

79

43°

88

45°77

.5

15

9.56.3

BS

14.3

140.

4

239.5

S

42.9

77.8

Ø50

201.5

115.5

B

52.4

26.2

Ø25

Ø10

1.6

-0.0

540

Ø50

77.8

42.9 26.24633

max. 220.5

115.5

BS

BS

Ø25

52.4

208.2

115.5

Ø10

1.6

-0.0

540


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1



Dimensions [mm]

Dimensions, size 72


239.5

S

42.9

77.8

Ø50

201.5

B

52.4

26.2

Ø25

72 72

146

151max. 220.5

6.3

146

14

114.5

114.

5

ZY

X

115.5

39

89

L1

L1

L

L2

79

43°

150

88

45°77

.5

12.7

BS

140

111

45° 45°

X

115.5

208

151max. 220.5

15

15

6.3

115.5

39L1

Ø12

7-0

.063

0Ø

127

-0.0

630

12.7X

115.5

Ø25

52.4

S B

4633

Ø5077.8

42.9 26.2


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1

43



Dimensions [mm]

Dimensions, size 72

DR – Hydraulic pressure controller; Clockwise rotation, mounting flange R series 53

239.5

S

42.9

77.8

Ø50

201.5

B

52.4

26.2

Ø25

72 72

146

151max. 220.5

6.3

146

14

114.5

114.

5

ZY

X

115.5

39

89

L1

L1

L

L2

79

43°

150

88

45°77

.5

12.7

BS

140

111

45° 45°

X

115.5

208

151max. 220.5

15

15

6.3

115.5

39L1

Ø12

7-0

.063

0Ø

127

-0.0

630

12.7X

115.5

Ø25

52.4

S B

4633

Ø5077.8

42.9 26.2


Flange ISO 3019-1

Flange ISO 3019-1



Dimensions [mm]


S ‒ 14T 12/24DP1) R ‒ 14T 12/24DP1)2)

55.4

195

47.5

39.5

5/16

-18U

NC

-2B

3) 4

)

5/16

-18U

NC

-2B

3) 4

)

19

55.4

38

5


U ‒ 15T 16/32DP1) W ‒ 15T 16/32DP1)

45.9

165

33.1

25

1/4-

20U

NC

-2B

3) 4

)

1/4-

20U

NC

-2B

3) 4

) 16

45.9

29

5


B Working port (standard pressure series)Fastening thread

SAE J5186)

DIN 131 inM10 × 1.5; 17 deep

315 O


SAE J5186)

DIN 132 inM12 × 1.75; 20 deep

5 O












Usable shaft length

Usable shaft length

45



Dimensions [mm]


max. 220.565

124

140.

5

X

150.5

L

L2

X

S

151241

125

L1

L

L2

X 35.6

140.

4

X

115.5 64.8

123.

9

S


max. 220.565

124

140.

5

X

150.5

L

L2

X

S

250.5

125

L1

L

L2

36

140.

4

115.5 82

S

X


L1

L

L2

140

128

24765

S

X

124

X

150 250.5

140.

51)

X

L

L2S

1) ER7.: 175.5 mm if using an intermediate plate pressure controller



Dimensions [mm]

Dimensions, size 85


95 85

S

L

50.8235.5

277

Z

X

Y

max. 241.5130

BS

X

Ø63

88.9

31.8

66.7

B

Ø32

S

B

Ø12

7-0

.063

0Ø

127

-0.0

630

66.7

Ø60

88.9

Ø32

50.8 31.850 45

156

max. 242130

X L

L1

245

12.7

20

40

12.7

20

40

181210

45°

95

93.5

8717.5


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1

47



Dimensions [mm]

Dimensions, size 85


S95 85

66.7

Ø32

31.8B

235

Ø63

88.9

277

50.8

ZY

X

20

36

130

143

max. 251.5

12.7

3612.7

X

BS

245

4

45°

126

114.

5

114.5146

14.3

150

Ø12

7-0

.063

0Ø

127

-0.0

630

101

102.

5

95

130

143

45°

95

4

L

L2

L1

X

max. 251.5

S B

66.7

Ø6088

.9

Ø32

50.8 31.850 45


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1



Dimensions [mm]


S ‒ 17T 12/24DP1) U ‒ 14T 12/24DP1)

61.9

285

54

43.5

7/16

-14U

NC

-2B

3) 4

)

55.4

195

47.5

35

5/16

-18U

NC

-2B

3) 4

)

▼ Splined shaft 1 1/4 in SAE J744

W ‒ 14T 12/24DP1)

5/16

-18U

NC

-2B

3) 4

)

19

55.4

33

5


B Working port (high-pressure line)Fastening thread

SAE J5186)

DIN 131 1/4 inM14 × 2; 19 deep

315 O


SAE J5186)

DIN 132 1/2 inM12 × 1.75; 17 deep

5 O

L Drain port ISO 119267) 1 1/16-12UNF-2B; 15 deep 2 O8)

L1, L29) Drain port ISO 119267) 1 1/16-12UNF-2B; 15 deep 2 X8)










Usable shaft length

49



Dimensions [mm]


139.

5

X 74

156

L

L1

S

max. 241.5171.5

X

36X

142

150

133

74181.5267

L

L2

L1X

S


139.

5

X 74

156

L

L1

S

max. 241.5171.5

X

S

133

74181.5281

X

150

L

L2

L1X


X

S

145

149.

9

133.

4

74181.5271

L

L2

L1X

19.455

1561)

271.4

XL1

L

S

1) ER7.: 191 mm when using a sandwich plate pressure reducing valve


50 A10VO series 52 and 53 | Axial piston variable pumpDimensions size 100

Dimensions [mm]

Dimensions size 100


S95 85

66.7

Ø32

31.8B

235

Ø63

88.9

277

50.8

ZY

X

20

36

130

143max. 251.5

12.7

3612.7

X

BS

245

Ø12

7-0

.063

0Ø

127

-0.0

630

130

143

X

max. 251.5

S B66

.7

Ø6088

.9

Ø32

50.8 31.850 45

4

45°

150

101

102.

5

95

181210

45°

95

4

17.5

LL

L

L2

L1L1

L1


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1

51


Axial piston variable pump | A10VO series 52 and 53 Dimensions size 100

Dimensions [mm]

Dimensions size 100


S95 85

66.7

Ø32

31.8B

235

Ø63

88.9

277

50.8

ZY

X

20

36

130

143

max. 251.5

12.7

3612.7

X

BS

245

4

45°

126

114.

5

114.5146

14.3

150

Ø12

7-0

.063

0Ø

127

-0.0

630

101

102.

5

95

130

143

45°

95

4

LL1

L

L1

L

L2

L1

X

max. 251.5

S B

66.7

Ø6088

.9

Ø32

50.8 31.850 45


View Y1)

View X1)

Detail Z

▼ Port plate 11

▼ Port plate 12

Flange ISO 3019-1

Flange ISO 3019-1


52 A10VO series 52 and 53 | Axial piston variable pumpDimensions size 100

Dimensions [mm]


S ‒ 17T 12/24DP1) U ‒ 14T 12/24DP1)

61.9

285

54

43.5

7/16

-14U

NC

-2B

3) 4

)

55.4

195

47.5

35

5/16

-18U

NC

-2B

3) 4

)

▼ Splined shaft 1 1/4 in SAE J744

W ‒ 14T 12/24DP1)

5/16

-18U

NC

-2B

3) 4

)

19

55.4

33

5

Ports Standard Size4) pmax abs [bar]5) Status10)

B Working port (high-pressure line)Fastening thread

SAE J5186)

DIN 131 1/4 inM14 × 2; 19 deep

315 O


SAE J5186)

DIN 132 1/2 inM12 × 1.75; 17 deep

5 O

L Drain port ISO 119267) 1 1/16-12UNF-2B; 15 deep 2 O8)

L1, L29) Drain port ISO 119267) 1 1/16-12UNF-2B; 15 deep 2 X8)










Usable shaft length

53


Axial piston variable pump | A10VO series 52 and 53 Dimensions size 100

Dimensions [mm]


S

133

74181.5max. 251.5

X

X

150

L

L2

L1

36X

142

150

133

74181.5267

L

L2

L1X

S


S

133

74181.5max. 251.5

X

X

150

L

L2

L1

S

133

74181.5281

X

150

L

L2

L1X


X

S

145

149.

9

133.

4

74181.5271

L

L2

L1X

S

272

X

1561) L

L2

L1

1) ER7.: 191 mm when using a sandwich plate pressure reducing valve


54 A10VO series 52 and 53 | Axial piston variable pumpDimensions through drive

Dimensions [mm]

Dimensions through drive

Flange ISO 3019-1 (SAE) Hub for splined shaft1) Availability over sizes Code

Diameter Attachment2) Diameter 18 28 45 60/63 72 85 100

82-2 (A) 5/8 in 9T 16/32DP ● ● ● ● ● ● ● K013/4 in 11T 16/32DP ● ● ● ● ● ● ● K52

● = Available ○ = On request

▼ 82-2

A4

A B

45°

106.5

A3

A2

10

ø82.

55+0

.050

+0.0

20

A4

45°

ø 106.5

A3

10

ø82.

55+0

.050

+0.0

20

A2

A B

K01(SAE J744 16-4 (A))

NG A1 A2 A3 A43) K52(SAE J744 19-4 (A-B))

NG A1 A2 A3 A43)

18 182 9.3 43.3 M10×1.5;14.5 deep

18 182 39 18.8 M10×1.5;14.5 deep

28 204 9.9 47 M10×1.5;16 deep

28 204 39.3 18.8 M10×1.5;16 deep

45 229 10.7 53 M10×1.5;16 deep

45 229 39.4 18.9 M10×1.5;16 deep

6063

255 9.5 59 M10×1.5;16 deep

6063

255 39.4 18.9 M10×1.5;16 deep

72 255 9.5 59 M10×1.5;16 deep

72 255 39.4 18.9 M10×1.5;16 deep

85 302 13.4 68 M10×1.5;20 deep

85 302 44.1 23.6 M10×1.5;20 deep

100 302 13.4 68 M10×1.5;20 deep

100 302 44.1 23.6 M10×1.5;20 deep

1) According to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5

2) Mounting drillings pattern viewed from through drive with control at top

3) Thread according to DIN 13, observe the project planning notes on page 64 for the maximum tightening torques.

A1 (to mounting flange)A1 (to mounting flange)

Omitted for NG 28 Omitted for NG 28

Omitted for NG 28 Omitted for NG 28

Section A-B Section A-B

55


Axial piston variable pump | A10VO series 52 and 53 Dimensions through drive

Dimensions [mm]






101-2 (B) 7/8 in 13T 16/32DP – ● ● ● ● ● ● K681 in 15T 16/32DP – – ● ● ● ● ● K04


▼ 101-2

A4

45°

146

A3

10

ø101

.6+0

.050

+0.0

20

A2

A B

A4

A B

45°

146

A3

10

ø101

.6+0

.050

+0.0

20

A2

K68(SAE J744 22-4 (B))

NG A1 A2 A3 A43) K04(SAE J744 25-4 (B-B))

NG A1 A2 A3 A43)

28 204 42.3 17.8 M12×1.75;18 deep

45 229 47.9 18.9 M12×1.75;18 deep

45 229 42.4 17.9 M12×1.75;18 deep

6063

255 47.4 18.4 M12×1.75;18 deep

6063

255 42.4 17.9 M12×1.75;18 deep

72 255 47.4 18.4 M12×1.75;18 deep

72 255 42.4 17.9 M12×1.75;18 deep

85 302 51.2 22.2 M12×1.75;20 deep

85 302 46.5 22 M12×1.75;20 deep

100 302 51.2 22.2 M12×1.75;20 deep

100 302 46.5 22 M12×1.75;20 deep

A1 (to mounting flange) A1 (to mounting flange)

Omitted for NG 28, 45 Omitted for NG 45

Omitted for NG 45Omitted for NG 28, 45



56 A10VO series 52 and 53 | Axial piston variable pumpDimensions through drive

Dimensions [mm]






127-4 (C) 1 1/4 in 14T 12/24DP – – – ● ● ● ● K151 1/2 in 17T 12/24DP – – – – – ● ● K16


▼ 127-4

ø127

+0.0

50+0

.020

B

A

114.

5

114.5 A4 13

A2

A3

ø127

+0.0

50+0

.020

B

A

114.

5

114.5 A4 13.4

A2

A3

K15(SAE J744 32-4 (C))

NG A1 A2 A3 A43) K16(SAE J744 32-4 (C))

NG A1 A2 A3 A43)

6063

255 8 59 M12×1.75;16 deep

85 301.5 13 67.9 M12×1.75;through

72 255 8 59 M12×1.75;16 deep

100 301.5 13 67.9 M12×1.75;through

85 301.5 13 67.9 M12×1.75;through

100 301.5 13 67.9 M12×1.75;through



57


Axial piston variable pump | A10VO series 52 and 53 Dimensions through drive

Dimensions [mm]






127-2 (B) 1 1/4 in 14T 12/24DP – – – – – ● ● K071 1/2 in 17T 12/24DP – – – – – ● ● K24


▼ 127-2

13B

45°

Ø12

7+0

.050

+0.0

20

AA3

A2

A4

Ø181

A4

A

B

45°

ø181

A3

A2

13

ø127

+0.0

50+0

.020

K07(SAE J744 32-4 (C))

NG A1 A2 A3 A43) K24(SAE J744 38-4 (C-C))

NG A1 A2 A3 A43)

85 301.5 13 67.9 M12×1.75;through

85 302 8 68 M16×2;24 deep

100 301.5 13 67.9 M12×1.75;through

100 302 8 68 M16×2;24 deep




58 A10VO series 52 and 53 | Axial piston variable pumpOverview of attachment options

Dimensions [mm]

Overview of attachment options

Through drive Attachment options of 2nd pump

Flange ISO 3019-1

Hub for splined shaft

Short des.

A10V(S)O/5xNG (shaft)

A10VO/31 NG (shaft)

A1VO/10NG (shaft)

External gear pump

82-2 (A) 5/8 in K01 10 (U) 18 (U) 18 (S2) Series F3/4 in K52 10 (U)

18 (U)18 (S, R)

18 (S, R) 18 (S3)

101-2 (B) 7/8 in K68 28 (S,R)45 (U, W)1)

28 (S,R)45 (U,W)

35 (S4) Series N/G

1 in K04 45 (S,R)60, 63 (U, W)2)

72 (U, W)2)

45 (S,R) 35 (S5) –

127-4 (C) 1 1/4 in K15 60, 63 (S, R)72 (S,R)

– – –

1 1/2 in K16 85 (S)100 (S)

– – –

127-2 (C) 1 1/4 in K07 85 (U,W)100 (U, W)

71 (S,R) – PGH5

1 1/2 in K24 85 (S)100 (S)

– – –

1) Not for NG28 with K682) Not for NG28 with K04

59


Axial piston variable pump | A10VO series 52 and 53 Combination pumps A10VO + A10VO

Dimensions [mm]

Combination pumps A10VO + A10VO

Through the use of combination pumps, it is possible to have independent circuits without the need to fit splitter gearboxes. When ordering combination pumps, the type designations of the 1st and 2nd pump must be linked with a “+” sign.Order example:A10VO85DRS/53R-VSC12K04+A10VO45DRF/53R-VSC11N00It is permissible to use a combination of two single pumps of the same nominal size (tandem pump) considering a dynamic mass acceleration of maximum 10 g (= 98.1 m/s2) without additional support brackets. For combination pumps consisting of more than two pumps, the mounting flange must be rated for the permis-sible mass torque (please consult us).

Permissible mass moment of inertia

NG 10 18 28 45 60/63 72 85 100

static Tm Nm – – 890 900 1370 1370 3080 3080

dynamic at 10 g (98.1 m/s2) Tm Nm – – 89 90 137 137 308 308

Weight with through-drive plateWeight without through-drive plate (e.g. 2nd pump)

m kg –8

1311.5

1815

2418

2822

2822

4536

4536

Distance, center of gravity without through drive l1 mm – 78 85 96 105 105 122 122

Distance, center of gravity with through drive l1 mm – 87 99 115 127 127 150 150

l1l2

m2m1

m1, m2, m3 Weight of pump [kg]

l1, l2, l3 Distance, center of gravity

[mm]

Tm = (m1 × l1 + m2 × l2 + m3 × l3) ×1

[Nm]102


60 A10VO series 52 and 53 | Axial piston variable pumpConnector for solenoids

Dimensions [mm]

1) Power outlets for 2 valves, can be actuated separately

Connector for solenoids

DEUTSCH DT04-2P-EP04Molded connector, 2-pin, without bidirectional suppressor diode The following type of protection is provided with installed mating connector:

▶ IP67 (DIN/EN 60529) and ▶ IP69K (DIN 40050-9)

▼ Circuit diagram symbol

▼ Mating connector DEUTSCH DT06-2S-EP04

Consisting of DT designation

1 case DT06-2S-EP04

1 wedge W2S

2 sockets 0462-201-16141

The mating connector is not included in the delivery contents.This can be supplied by Bosch Rexroth on request (material number R902601804).

Electronic controls

Control Electronics function electronics Further information

Electric pressure control Controlled power outlet RA analog 95230

RC2-2/211) digital 95201

36.7

(2)(1)

36.7

68.5

ø37

50

Changing plug positionIf necessary, you can change the position of the connector by turning the solenoid.To do this, proceed as follows:

▶ Loosen the mounting nut (1) of the solenoid. To do this, turn the mounting nut (1) one turn counter-clockwise.

▶ Turn the solenoid body (2) to the desired orientation. ▶ Retighten the fixing nut.

Tightening torque: 5+1 Nm. (WAF 26, 12-sided DIN 3124)

On delivery, the position of the connector may differ from that shown in the brochure or drawing.


Axial piston variable pump | A10VO series 52 and 53 Installation instructions

61

1) Because complete air bleeding and filling are not possible in this position, the pump should be air bled and filled in a horizontal po-sition before installation.

2) For NG10 and NG28 series 52, L1 is opposite, L must then be con-nected if necessary.

3) Only series 53

Installation instructions

GeneralThe axial piston unit must be filled with hydraulic fluid and air bled during commissioning and operation. This must also be observed following a longer standstill as the axial piston unit may drain back to the reservoir via the hydraulic lines.Particularly with the “drive shaft up/down” installation position, filling and air bleeding must be carried out com-pletely as there is, for example, a danger of dry running.The case drain fluid in the pump housing must be directed to the reservoir via the highest available drain port (L, L1

2), L23 )).

For combinations of multiple units, the case drain fluid must be drained off at each pump. If a shared reservoir line is used for this purpose, make sure that the case pressure in each pump is not exceeded. In the event of pressure differences at the drain ports of the units, the shared drain line must be changed so that the minimum permissible case pressure of all connected units is not exceeded in any situation. If this is not possible, separate drain lines must be laid if necessary.To achieve favorable noise values, decouple all connecting lines using elastic elements and avoid above-reservoir installation. In all operating conditions, the suction line and drain line must flow into the reservoir below the minimum fluid level. The permissible suction height hS results from the overall loss of pressure. However, it must not be higher than hS max = 800 mm. The minimum suction pressure at port S must also not fall below 0.8 bar absolute during operation and during cold start.When designing the reservoir, ensure adequate distance between the suction line and the case drain line. This pre-vents the heated, return flow from being drawn directly back into the suction line.NoteIn certain installation positions, an infl uence on the control characteristics can be expected. Gravity, dead weight and case pressure can cause minor shifts in con-trol characteristic curves and changes in response time.

For key, see page 63.

Installation position See the following examples 1 to 12.Further installation positions are available upon request.Recommended installation position: 1 and 3

Below-tank installation (standard)Below-tank installation means the axial piston unit is installed outside of the reservoir below the minimum fluid level.

Installation position Air bleeding Filling

12)

LL1

S

X

ht min SB

F

h min

F S + L or L1

21)

X

SB

F

L

L1

S

ht min

h min

F S + L1

3 3)

L

L2

L1

S

SB

Fht min

h min

F S + L or L1

4

SB

F

LL1

S

ht min

h min

F S + L or L1


62 A10VO series 52 and 53 | Axial piston variable pumpConnector for solenoids

Dimensions [mm]



3) Only series 53

Above-reservoir installationAbove-reservoir installation means the axial piston unit is installed above the minimum fluid level of the reservoir. To prevent the axial piston unit from draining in position 6, the height difference hES min must be at least 25 mm. Observe the maximum permissible suction height hS max = 800 mm.


52)

X

LL1

S

F

SB

hs max

ht minh min

F L1 or L

61)2)

SB

S

F

LL1

hs max

ht minh min

hES min

X

F L1

73)

L

L2

SL1

F

SB

hs max

ht minh min

F L2

81)

SB

SF

LL1

hs max

ht minh min

F S or L

A check valve in the case drain line is only permissible in individual cases. Consult us for approval.

For key, see page 63.


63



3) Only series 53

Axial piston variable pump | A10VO series 52 and 53

Reservoir installationInside-reservoir installation is when the axial piston unit is installed in the reservoir below the minimum fluid level. The axial piston unit is completely below the hydraulic fluid.If the minimum fluid level is equal to or below the upper edge of the pump, see chapter “Above-reservoir installation”.Axial piston units with electrical components (e.g., electric control, sensors) may not be installed in a reservoir below the fluid level.


92)

LL1

S

h min

SB h t min

X

Via the highest available port L

Automatically via the open port L or L1 due to the position under the hydraulic fluid level

10

L

L1

S

SB

h min

h t min

X

Via the highest available port L1

Automatically via the open port L, L1 or S due to the position under the hydraulic fluid level

113)

L

L2

SSB

h min

h t min

12

LL1

S SB

h min

h t min

Via the highest available port L

Automatically via the open port L, L1 or S due to the posi-tion under the hydraulic fluid level

Key and assembly note

Legend

F Filling / air bleeding

S Suction port

L; L1 Reservoir port

SB Baffle (baffle plate)

ht min Minimum required immersion depth (200 mm)

hmin Minimum required distance to reservoir bottom (100 mm)

hES min Minimum necessary height needed to protect the axial piston unit from draining (25 mm).

hS max Maximum permissible suction height (800 mm)

64


A10VO series 52 and 53 | Axial piston variable pumpProject planning notes

Bosch Rexroth AGMobile ApplicationsAn den Kelterwiesen 1472160 Horb a.N., GermanyTel. +49 7451 [email protected]

© This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information provided does not release the user from the obligation of independent judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.

Project planning notes

▶ The A10VO pump is designed to be used in open circuits. ▶ Project planning, installation and commissioning of the

axial piston units requires the involvement of skilled personnel.

▶ Before using the axial piston unit, please read the core-sponding instruction manual thoroughly and completely. If necessary, request these from Bosch Rexroth.

▶ Before finalizing your design, request a binding installa-tion drawing.

▶ The data and notes contained herein must be adhered to. ▶ Pressure controllers are not backups against pressure

overload. A separate pressure relief valve is to be pro-vided in the hydraulic system.

▶ Depending on the operating condition of the axial piston unit (operating pressure, fluid temperature), the charac-teristic curve may shift.

▶ Not all versions of the product are approved for use in a safety function pursuant to ISO 13849. Please consult the responsible contact person at Bosch Rexroth if you require reliability parameters (e.g. MTTFd) for functional safety.

▶ Working ports: – The ports and fastening threads are designed for the

specified peak pressure. The machine or system manufacturer must ensure that the connecting ele-ments and lines correspond to the specified operat-ing conditions (pressure, flow, hydraulic fluid, tem-perature) with the necessary safety factors.

– The service and function ports can only be used to accommodate hydraulic lines.

Safety instructions

▶ During and shortly after operation, there is a risk of burns on the axial piston unit and especially on the solenoids. Take appropriate safety measures (e.g., by wearing protective clothing).

▶ Moving parts in control equipment (e.g. valve spools) can, under certain circumstances, get blocked in posi-tion as a result of contamination (e.g. impure hydraulic fluid, abrasion, or residual dirt from components). As a result, the flow of hydraulic fluid and the build-up of torque in the axial piston unit can no longer respond correctly to the operator's specifications. Even the use of various filter elements (external or internal flow filtering) cannot rule out errors, but can only help mini-mize risks. The machine/system manufacturer must test whether remedial measures are needed on the machine for the application concerned in order to set the con-sumer being driven to a safe position (e.g. safe stop) and if necessary to ensure it is properly implemented.

axial piston variable pump a10vo series 52 and 53 · pdf filebosch rexroth ag, re...

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