Axial Piston Variable Pump A10V(S)O
Axial Piston Variable PumpA10V(S)ORE 92701/01.121/52Replaces: 06.09andRE 92707/11.10Data sheetSeries 31Size 18 (A10VSO)Sizes 28 to 140 (A10VO)Nominal pressure 280 barMaximum pressure 350 barOpen circuitContentsFeaturesType code for standard program2Technical data4Drive power and flow9–– Variable pump in axial piston swashplate design for hydrostatic drives in an open circuit–– The flow is proportional to the drive speed and the displacement.DG – Two-point control, directly operated10DR – Pressure control11–– The flow can be steplessly varied by adjustment of theswashplate angle.DRG – Pressure control, remotely operated12–– 2 case drain portsDFR, DFR1 – Pressure and flow control13–– Excellent suction characteristicsDFLR – Pressure, flow and power control14–– Low noise levelED – Electro-hydraulic pressure control15–– Long service lifeER – Electro-hydraulic pressure control16–– Favorable power/weight ratioDimensions sizes 18 to 14018–– Versatile controller rangeDimensions through drive42–– Short control timeSummary mounting options45Combination pumps A10VO A10VO46–– The through drive is suitable for adding gear pumps and axialpiston pumps up to the same size, i.e., 100% through drive.Connector for solenoids47Installation instructions48General instructions52
2/52Bosch Rexroth AGA10VO Series 31 RE 92701/01.12Type code for standard programO0101020203/04053106–07V08VersionStandard version (without symbol)High-speed versionAxial piston unitSwashplate design, variable, nominal pressure 280 bar, maximum pressure 350 bar0910111213182845lll71 100 140lll––lllll––––– A10VS–lllllHA10VOperation mode03 Pump, open circuitOSize (NG)04 Geometric displacement, see table of values on pages 6 and 718284571 100 140llllllDGllllllDRX-T openllllllDFRX-T closedllllllDFR1mllll–EF1)llllllDRGED71Control deviceTwo-point control, directly operatedPressure controlwith flow control, hydraulicwith flow and differential pressure control, electrically variable05with pressure cut-off, remotely operatedhydraulicelectricalnegative characteristicpositive )24VllllllER722)–lllllDFLRPressure, flow and power controlSeries06 Series 3, Index 10731Direction of rotationViewed on drive shaftclockwiseRcounter clockwiseLSeals08 FKM (fluor-caoutchouc)1)2)VSee RE 92709The following must be taken into account during project planning:Excessive current levels (I 1200 mA with 12 V or I 600 mA with 24 V) to the ER solenoid can result in undesired increaseof pressure which can lead to pump or system damage:- Use Imax current limiter solenoids.- A sandwich plate pressure reducing valve can be used to protect the pump in the event of overflow.An accessory kit with sandwich plate pressure reducing valve can be ordered from Rexroth under part number R902490825. availablem on request– not available
RE 92701/01.12 A10VO Series 31Bosch Rexroth AG3/52Type code for standard programO010203Drive shaftSplined shaftANSI B92.1a0910Mounting flangeISO 3019-1 (SAE)/043105–0607134571 100 140lllsimilar to shaft "S" however for higher input torquellll––Rreduced diameter, not for through drivelllllmUsame as "U", higher torque; not for through drive–llllmWllS18284571 100 71 100 140–l 8l28l45l71 100 140l l lN009T 16/32DPllllK013/4 in11T 16/32DPllllllK527/8 in13T 16/32DP–lllllK681 in15T 16/32DPSAE flange ports on opposite side, metric fastening threadcoupling for splined shaft1)Diameterdiameter82-2 (A)5/8 in101-2 (B)152-4 (D)l––llllK04–––lllK071 1/2 in 17T 12/24DP––––llK241 3/4 in 13T 8/16DP–––––lK1718l28l45l71 100 140l l lCoupling for splined shaft as per ANSI B92.1aConnectors for other electric components can deviate.m on requestl1 1/4 in 14T 12/24DPConnectors for solenoids2)13 DEUTSCH - molded connector, 2-pin – without suppressor diode available1228127-2 (C)2)11lFlange ISO 3019-11)1018Through drivewithout through drive1209standard shaftService line portSAE flange ports at rear, metric fastening thread, not for through drive11V08– not availableP
4/52Bosch Rexroth AGA10VO Series 31 RE 92701/01.12Technical dataHydraulic fluidNotes on the choice of hydraulic fluidBefore starting project planning, please refer to our datasheets RE 90220 (mineral oil), RE 90221 (environmentallyacceptable hydraulic fluids) and RE 90222 (HFD hydraulicfluids) for detailed information regarding the choice of hydraulicfluid and application conditions.In order to select the correct hydraulic fluid, it is necessary toknow the operating temperature in the reservoir (open circuit)in relation to the ambient temperature.If environmentally acceptable hydraulic fluids are being used,the limitations regarding technical data and other seals mustbe observed. Please contact us.Operating viscosity rangeFor optimum efficiency and service life we recommend that theoperating viscosity (at operating temperature) be selected inthe rangenopt opt. operating viscosity 16 . 36 mm /s2referred to reservoir temperature (open circuit).Limits of viscosity rangeFor critical operating conditions the following values apply:nmin 10 mm2/sshort-term (t 1 min)at max perm. case drain temperature of 115 C.The hydraulic fluid should be selected so that within the operating temperature range, the viscosity lies within the optimumrange (nopt), see shaded section of the selection diagram. Werecommend to select the higher viscosity grade in each case.Example: at an ambient temperature of X C the operatingtemperature is 60 C. In the optimum operating viscosity range(nopt; shaded area) this corresponds to viscosity grades VG 46resp. VG 68; VG 68 should be selected.Important:The case drain temperature is influenced by pressure and inputspeed and is always higher than the reservoir temperature.However, at no point in the component may the temperatureexceed 115 C. The temperature difference specified on the leftis to be taken into account when determining the viscosity inthe bearing.If the above conditions cannot be met, due to extreme operating parameters please contact us.Please also ensure that the max. case drain temperature of115 C is not exceeded in localized areas (for instance, in thebearing area). The fluid temperature in the bearing area isapprox. 5 K higher than the average case drain temperature.Filtration of the hydraulic fluidThe finer the filtration the better the cleanliness level of thehydraulic fluid and the longer the service life of the axial pistonunit.Depending on the installation situation, special measures arenecessary at temperatures between -40 C and -25 C. Pleasecontact us.In order to guarantee the functional reliability of the axial pistonunit it is necessary to carry out a gravimetric evaluation of thehydraulic fluid to determine the particle contamination and thecleanliness level according to ISO 4406. A cleanliness level ofat least 20/18/15 must be maintained.At very high hydraulic fluid temperatures (90 C to maximum115 C), a cleanliness level of at least 19/17/14 according toISO 4406 is necessary.For detailed information on operation with low temperaturessee data sheet RE 90300-03-B.If the above cleanliness levels cannot be maintained, pleasecontact us.nmax 1600 mm2/sshort-term (t 1 min)on cold start(p 30 bar, n 1000 rpm, tmin -25 C)Selection diagram-40-20204060801001600010VG 68VG 46VG 32VG 222000VGViscosity n in -40 C-10 0 103050Temperature t in CFluid temperature range70905115tmax 115 C
RE 92701/01.12 A10VO Series 31Bosch Rexroth AG5/52Technical dataOperating pressure range(when using mineral oil)Pressure at service line port BNominal pressure pnom 280 bar absoluteMaximum pressure pmax 350 bar absoluteSingle operating period 2.0 msTotal operating period 300 hMinimum pressure (high-pressure side) 10 bar absolute1)pnomDtMaximum pressure pmaxThe maximum pressure corresponds to the maximum operating pressure within the single operating period. The total of thesingle operating periods must not exceed the total operatingperiod.Minimum pressure (high-pressure side)Minimum pressure in the high-pressure side (port B) that isrequired in order to prevent damage to the axial piston unit.The minimum pressure depends on the speed and displacement of the axial piston unit.Rate of pressure change RAMaximum permissible pressure build-up and pressure reduction speed with a pressure change over the entire pressurerange.DpTime tPressure at suction port S (inlet)Minimum pressure pS min 0.8 bar absoluteMaximum pressure pS max 10 bar absolute1)Pressure pPressure pRate of pressure change RA max 16000 bar/sNominal pressure pnomThe nominal pressure corresponds to the maximum designpressure.Single operating periodt1t2tnMaximum pressure pmaxNominal pressure pnomNotePlease contact us for values for other hydraulic fluids.Case drain pressureMaximum permissible case drain pressure (at port L, L1):Maximum 0.5 bar higher than the inlet pressure at port S,however not higher than 2 bar absolute.pL max abs 2 bar absolute1)1)Other values on requestDefinitionMinimum pressure (high-pressure side)Time tTotal operating period t1 t2 . tn
6/52Bosch Rexroth AGA10VO Series 31 RE 92701/01.12Technical data, standard unitTable of values (theoretical values, without efficiencies and tolerances: values rounded)SizeNG18284571100140Geometrical displacement per revolutionVg maxcm318284571100140at Vg maxnnomrpm330030002600220020001800at Vg Vg maxnmax perm rpm390036003100260024002100at nnom and Vg maxqv maxl/min5984117156200252at nE 1500 rpm and Vg maxqvE maxl/min274268107150210at nnom, Vg maxPmaxkW3039557393118at nE 1500 rpm and Vg maxPE maxkW12.62032507098 p 280 barTmaxNm80125200316445623 p 100 barTNm304572113159223ScNm/rad 11087223173750071884121142169537RcNm/rad 14850263604102576545––UcNm/rad 809016695300775277991093–WcNm/rad –198983446357460101847–Maximum speed 1)FlowPower at Dp 280 barTorqueat Vg max andRotary stiffness,drive shaftMoment of inertial rotary ngular acceleration, maximum2)arad/s2680055004000330027002700Filling capacityVL0.40.71.01.62.23.0kg121521334560Weight (without through drive) approx. m1)The values are applicable:- for an absolute pressure pabs 1 bar at suction port S- within the optimum viscosity range from nopt 16 to 36 mm2/s- for mineral-oil based hydraulic fluid.2)The scope of application lies between the minimum necessary and the maximum permissible drive speeds.Valid for external excitation (e.g. diesel engine 2- to 8-fold rotary frequency, cardan shaft 2-fold rotary frequency).The limiting value is only valid for a single pump.The loading capacity of the connecting parts must be taken into account.NoteExceeding the maximum or falling below the minimum permissible values can lead to a loss of function, a reduction in operationalservice life or total destruction of the axial piston unit. We recommend to check the loading through tests or calculation / simulation and comparison with the permissible values.Calculation of characteristicsFlowqV TorqueT PowerP Vg n hV[l/min]1000Vg Dp[Nm]20 p hmh2p T n60000 qV Dp600 ht[kW]Vg Displacement per revolution in cm3Dp Pressure differential in barn Speed in rpmhV Volumetric efficiencyhmh Mechanical-hydraulic efficiencyht Total efficiency (ht hV hmh)
RE 92701/01.12 A10VO Series 31Bosch Rexroth AG7/52Technical data, high-speed versionTable of values (theoretical values, without efficiencies and tolerances: values rounded)SizeNG4571100140Geometrical displacement per revolutionVg maxcm34571100140at Vg maxnnomrpm3000255023002050at Vg Vg maxnmax perm rpm3300280025002200qv maxl/min135178230287PmaxkW6383107134Maximum speed 1)Flowat nnom and Vg maxPower at Dp 280 barat nnom, Vg maxTorque p 280 barTmaxNm200316445623 p 100 barTNm72113159223ScNm/rad 3750071884121142169537RcNm/rad 3446357460101847–Moment of inertial rotary groupJTWkgm20.00330.00830.01670.0242Angular acceleration, maximum2)arad/s24000330027002700Filling capacityVL1.01.62.23.0kg21334560at Vg max andRotary stiffness,drive shaftWeight (without through drive) approx. m1)The values are applicable:- for an absolute pressure pabs 1 bar at suction port S- within the optimum viscosity range from nopt 16 to 36 mm2/s- for mineral-oil based hydraulic fluid.2)The scope of application lies between the minimum necessary and the maximum permissible drive speeds.Valid for external excitation (e.g. diesel engine 2- to 8-fold rotary frequency, cardan shaft 2-fold rotary frequency).The limiting value is only valid for a single pump.The loading capacity of the connecting parts must be taken into account.NoteExceeding the maximum or falling below the minimum permissible values can lead to a loss of function, a reduction in operationalservice life or total destruction of the axial piston unit. We recommend to check the loading through tests or calculation / simulation and comparison with the permissible values.Sizes 45, 71, 100 and 140 are optionally available in high-speed version.External dimensions are not affected by this option.
8/52Bosch Rexroth AGA10VO Series 31 RE 92701/01.12Technical dataPermissible radial and axial loading on the drive shaftSizeNGRadial force maximumat a/218284571100140N35012001500190023002800 Fax max N70010001500240040004800FqFq maxa/2 a/2aAxial force maximum FaxPermissible input and through-drive torquesSizeNG18284571100140Torqueat Vg max and Dp 280 bar1)TmaxNm80125200316445623TE maxNm12419831962611041620Øin3/47/811 1/41 1/21 3/4Input torque for drive shaft, maximum2)SRUWTE maxNm160250400644––Øin3/47/811 1/4––TE maxNm59105188300595–Øin5/83/47/811 1/4–TE maxNm–140220394636–Øin–3/47/811 1/4–Maximum through-drive torque for drive shaft1)2)STD maxNm1081603194927781266RTD maxNm120176365548––Without considering efficiencyFor drive shafts free of radial forceDistribution of torquesT1T2TE1. Pumpe1st pump2.Pumpe2ndpumpTD
RE 92701/01.12 A10VO Series 31Bosch Rexroth AG9/52Technical dataDrive power and flowOperating material:Hydraulic fluid ISO VG 46 DIN 51519, t 50 CSize 18Size 71n 1500 rpmn 1500 rpmn 3300 rpmn 2200 rpm801404020Pqv max2010Pqv zero00050100150200250 280Operating pressure [bar]60100508040201000050100150200250 280Operating pressure [bar]Size 100n 1500 rpm3040qvPqv max2000501001502010P200qv zero 250 2800Operating pressure [bar]Size 45n 1500 rpmn 2000 rpm180601005040qvPqv max40203020100501007012060Pqv max1005080406030401502000Pqv zero250 28020Pqv zero100050100150200250 280Operating pressure [bar]Size 140n 1500 rpmn 1800 rpm260130240Operating pressure [bar]120qv220110200100180Flow qV [l/min]0801400Drive power P [kW]1106090qv16020n 2600 rpm80100200Drive power P [kW]6090Pqv max1608014070120601005080406030Pqv zero4020201000050100150200250 280Operating pressure [bar]Drive power P [kW]40Flow qV [l/min]9080Drive power P [kW]Flow qV [l/min]30Pqv zeron 1500 rpmFlow qV [l/min]40Pqv max6020Size 28n 3000 rpm70qv120Drive power P [kW]qvFlow qV [l/min]30Drive power P [kW]Flow qV [l/min]16060
10/52Bosch Rexroth AGA10VO Series 31 RE 92701/01.12DG – Two-point control, directly operatedThe variable pump can be set to a minimum swivel angleby connecting an external control pressure to port X.Circuit diagramThis will supply control fluid directly to the stroke piston;a minimum control pressure of pst 50 bar is required.XThe variable pump can only be switched between Vg max or Vg min.LPlease note, that the required control pressure at port X isdirectly dependent on the actual operating pressure pB inport B. (See control pressure characteristic).Control pressure pst in X 0 barVg maxControl pressure pst in X Vg min50 barBControl pressure characteristicReq. control pressure pst bar]120100L150Port for050 70140210Operating pressure pB [bar]280BService lineSSuction lineL, L1Case drain (L1 plugged)XPilot pressureS
RE 92701/01.12 A10VO Series 31Bosch Rexroth AG11/52DR – Pressure controlThe pressure control limits the maximum pressure at the pumpoutput within the pump control range. The variable pump onlysupplies as much hydraulic fluid as is required by the consu mers. If the operating pressure exceeds the pressure setpointset at the integrated pressure valve, the pump will adjusttowards a smaller displacement and the control deviation willbe reduced. The pressure can be set steplessly at the controlvalve.Circuit diagram, sizes 18 to 100LBStatic characteristicHysteresis / pressure rise pmax280Setting range1)Operating pressure pB [bar](at n1 1500 rpm; tfluid 50 C)L1SCircuit diagram, size 14025Flow qv [l/min]1)In order to prevent damage to the pump and the system,this setting range is the permissible setting range and mustnot be exceeded.The range of possible settings at the valve are greater.Port forBService lineSSuction lineL, L1Case drain (L1 plugged)Control dataHysteresis and repeatability p maximum 3 barPressure rise, maximumNG pbar1828457110014044681012Control fluid consumption maximum approx. 3 l/minFlow losses at qVmax see page 9.
12/52Bosch Rexroth AGA10VO Series 31 RE 92701/01.12DRG – Pressure control, remotely operatedThe DR-control valve (see page 11) is overriding this DRGremote setting of max. outlet pressure.Circuit diagram, sizes 18 to 100Not included in the delivery contentsA pressure relief valve can be externally piped to port X forremote setting of pressure below the setting of the DR controlvalve spool. This relief valve is not included in the deliverycontents of the DRG control.XThe differential pressure at the DRG control valve is set asstandard to 20 bar. This results in a pilot oil flow to the reliefvalve of approx. 1.5 l/min at port X. If another setting isrequired (range from 10-22 bar) please state in clear text.As a separate pressure relief valve we can recommend:LBDBDH 6 (hydraulic) to RE 25402 orDBETR-SO 381 with orifice Ø 0.8 mm in P (electric) toRE 29166.The max. length of piping should not exceed 2 m.Static characteristicHysteresis / pressure rise pmax(at n1 1500 rpm; tfluid 50 C)Setting range1)Operating pressure pB [bar]280L1X20Flow qv [l/min]1)SCircuit diagram, size 140Not included in the delivery contentsIn order to prevent damage to the pump and the system,this setting range is the permissible setting range and mustnot be exceeded.The range of possible settings at the valve are greater.Port forBService lineSSuction lineL, L1Case drain (L1 plugged)XNG 18 to 100with adapterPilot pressureXNG 140without adapterPilot pressureControl dataHysteresis and repeatability p maximum 3 barPressure rise, maximumNG pbar1828457110014044681012Control fluid consumption maximum approx. 4.5 l/minFlow losses at qVmax see page 9.
RE 92701/01.12 A10VO Series 31Bosch Rexroth AG13/52DFR/DFR1 – Pressure and flow controlWith DFR1 pluggedXThe pressure control overrides the flow control function.NoteThe DFR1 version has no connection between X and thereservoir. Unloading the LS-pilot line must be possible in thevalve system.Because of the flushing function sufficient unloading of theX-line must also be provided.LB280Setting range1)Operating pressure pB [bar]Flow control at n1 1500 rpm; tfluid 50 C)25Hysteresis / pressure rise p maxStatic characteristicL1SCircuit diagram, size 140With DFR1 pluggedXFlow qv [l/min]In order to prevent damage to the pump and the system,this setting range is the permissible setting range and mustnot be exceeded.The range of possible settings at the valve are greater.Flow qv [l/min]Static characteristic at variable speedSpeed n [rpm]Hysteresis / pressure rise pmax1)Differential pressure pStandard setting: 14 to 22 bar.If another
Axial piston unit 02 Swashplate design, variable, nominal pressure 280 bar, maximum pressure 350 bar l – – – – – A10VS – l l l l l A10V Operation mode 03 Pump, open circuit O Size (NG) 04 Geometric displacement, see table of values on pages 6 and 7 18 28 45 71 100 140 Control device 05 Two-point control, directly operated l l l l l l DG
Axial piston pump A10V in swashplate design is used for hydrostatic transmission in open loop circuits. Flow is proportional to drive speed and displacement. By adjusting the position of the swashplate it is possible to smoothly vary the flow. A10V - 52/53 Valve plate End cover Control valve Variable Piston DFR piston Cylinder block Swash plate .
for your axial piston variable pump A10VO or A10VSO. Please request the installation drawing from your contact at Bosch Rexroth. Installation drawing Axial piston variable pump A10V(S)O, size 18 (A10VSO), size 28 to 140 (A10VO) Contains the permissible technical data. 92701 Data sheet Axial piston variable pump A10VSO, size 18 to 140
4 Variable Displacement Pump (A)A10V, Series 31 www.FluiDyneFP.com Features Axial piston pump A10V in swashplate design is used for hydrostatic transmissions in open loop circuits. Flow is proportional to drive speed and displacement. By adjusting the position of the swashplate it is possible to smoothly vary the flow.
Axial piston variable pump A10V(S)O Series 31 Technical data, standard unit 7 Technical data, standard unit Size NG 18 28 45 71 88 100 140 Displacement, geometric, per revolution V g max in3 1.10 1.71 2.75 4.33 5.37 6.10 8.54 (cm3) (18) (28) (45) (71) (88) (100) (140) Rotational speed maximum1) at V g max n nom rpm 3300 3000 2600 2200 2100 .
Axial piston variable pump A7VO Data sheet Series 63 Sizes NG250 to 500 Nominal pressure 350 bar Peak pressure 400 bar Open circuit RE 92203/06.09 1/52 Replaces: 05.99 Features – Variable axial piston pump with tapered piston rotary group in bent axis design for hydrostatic drives in open circuits
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7.4.9 Hydraulically connecting the axial piston unit 36 7.4.10 Electrically connecting the axial piston unit 41 7.5 Performing flushing cycle 42 8 Commissioning 43 8.1 Initial commissioning 43 8.1.1 Filling the axial piston unit 43 8.1.2 Testing the hydraulic fluid supply 44 8.1.3 Performing a functional test 45 8.2 Running-in phase 45
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