Axial piston variable pump A1VO Series 10

1 RE 92650 Edition: , Bosch Rexroth AGCharacteristics variable pump with Axial piston rotary group of swash-plate design for hydrostatic drives in open circuit Flow is proportional to the drive speed and displacement. The flow can be infinitely varied by controlling the swashplate angle. Significant fuel savings of up to 15% compared to fixed systems Optimized efficiency, though same power at less fuel consumption Increased service life compared to gear pumps Compact design by integrated controller A wide range of highly adaptable control devices for all important applications Stepless flow variation by adjusting the swashplate angle Low noise High power density Excellent suction characteristics High flexibility due to interchangeable through drive adapter For load-sensing-systems in smaller working machines Sizes 18, 28.

2 35 Nominal pressure 250 bar Maximum pressure 280 bar Open circuitAxial piston variable pumpA1VO Series 10RE 92650 Edition: : code 2 Hydraulic fluids 4 Shaft seal 5 Working pressure range 6 Technical data 7DR/DN pressure controller 9D3/D4 Pressure controller with override 10 DRS0/DNSO Pressure controller with load sensing 11 Dimensions size 18 and size 28 12 Dimensions, size 35 14 Through drives dimensions 16 Overview of attachment options 17 Combination pumps A1VO + A1VO 18 Connector for solenoids 19 Installation instructions 20 Project planning notes 22 Safety instructions 22 Bosch Rexroth AG.

3 RE 92650 Series 10 | Axial piston variable pumpOrdering codeAxial piston unit01 variable swashplate design, nominal pressure 250 bar, maximum pressure 280 barA1 VOperating mode02 Pump, open circuitOSize (NG)03 Geometric displacement, see Technical data on page 7018 028 035 Control device01802803504 Pressure con-trollerSetting range 100 to 250 bar DRwith load sensing DRS0 Setting range 20 to 100 bar DNwith load sensing DNS0with override, electric-proportional, negative control2)U = 12 V D3U = 24 V D4 Controller design and mounting05 Built-on2) ACartridge CSetting06 Adjustable2 Connector for solenoids1) (see page 19)07 Without connector (without solenoid, only for hydraulic control)

4 0 DEUTSCH - molded connector, 2-pin, without suppressor diode PAdditional function08 Without additional function0 Series09 Series 1, index 010 Design of ports and fastening threads10 ANSI, port threads with O-ring seal according to ISO 11926, metric fastening thread on through drive version BISO, port threads with O-ring seal according to ISO 6149, metric fastening thread on through drive version MDirection of rotation11 Viewed on drive shaftclockwiseRcounter-clockwiseLSealing material12 FKM (fluoroelastomer)VMounting flanges13 SAE J74482-2 A2101-2 B2 ISO 3019-280-2 K21) Connectors for other electric components may differ2) Currently, only D3 and D4 controllers available as mounted ver-sions.

5 All the other controllers are always cartridge code010203040506070809101112131415161718 A1VO20/10V00 0 RE 92650 , Bosch Rexroth AG Axial piston variable pump | A1VO Series 10 Ordering code 33) For size 35, not for through drive4) According to ANSI ) Mounting drillings pattern viewed on through drive, with service line port B on 0 Drive shaft (permissible input torque, see page 8)01802803514 Splined shaft ANSI in 9T 16/32DP S23/4 in 11T 16/32DP S37/8 in 13T 16/32 DP3) S41 in 15T 16/32DP S5 Service line port15 Threaded ports B and S on opposite sides 1 Threaded ports B and S at rear.

6 Not for through drive 9 Through drives (for attachment options, see page 17)16 Flange SAE J744 Hub for splined shaft4)DiameterAttachment5)DesignationDi ameterDesignation018028035 Without through drive000082-2 (A)A25/8 in9T 16/32 DPS2 A2S23/4 in11T 16/32 DPS3 A2S37/8 in13T 16/32 DPS4 A2S4101-2 (B)B27/8 in13T 16/32 DPS4 B2S41 in15T 16/32 DPS5 B2S5 With mounted auxiliary pumpDisplacement Hxx0xx cm3 ( H200 at 20 cm3)Reduction of geometric displacement17 Without reduction00 Standard / special version18 Standard version0 = Available = On request = Not availableNotesNote the project planning notes on page Rexroth AG, RE 92650 Series 10 | Axial piston variable pumpHydraulic fluidsHydraulic fluidsThe A1VO variable pump is designed for operation with HLP mineral oil according to DIN 51524.

7 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 hydrocarbonsDetails regarding the 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 ( opt, 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 the above conditions cannot be maintained due to extreme operating parameters, please contact the respon-sible member of staff at Bosch and temperature of hydraulic fluidsViscosityTemperatureCommentCold start max 1600 mm2/s St -25 Ct 3 min, without load (20 bar p 50 bar)

8 , n 1000 RPMP ermissible temperature difference T 25 Kbetween Axial piston unit and hydraulic fluidWarm-up phase < 1600 to 400 mm2/s = -25 Cat p pnom, n nnom and t 15 minContinuous operation = 400 to 10 mm2/sThis corresponds, for example on the VG 46, to a temperature range of +5 C to +85 C (see selection diagram) = -25 C to +90 CNote the permissible temperature range of the shaft seal mea-sured at port L( T = approx. 5 K between the bearing/shaft seal and port L) opt = 36 to 16 mm2/sRange of optimum operating viscosity and efficiencyShort-term operation min 7 mm2/st < 1 min, p < pnom Selection diagram-40-25-10103050901157007104060201 0020040060010001600VG 22VG 32VG 46VG 68VG 1001636 Range of optimum operating viscosity voptOptimum efficiencyMaximum permissible viscosity for cold startMinimum permissible viscosity for short-term operationTemperature [ C]Viscosity v [mm2/s]

9 Continuous operationWarm-up phaseMinimum permissible temperature for cold start RE 92650 , Bosch Rexroth AG Axial piston variable pump | A1VO Series 10 Shaft seal 5 Filtration of the hydraulic fluidFiner filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the Axial piston unit. In order to guarantee the functional reliability of the Axial piston unit it is necessary to carry out a gravimetric evalua-tion of the hydraulic fluid to determine the particle contam-ination and the cleanliness level according to ISO 4406.

10 A cleanliness level of at least 20/18/15 must be very high hydraulic fluid temperatures (90 C to maximum 115 C), at least cleanliness level 19/17/14 according to ISO 4406 is contact us if the above classes cannot be sealThe FKM shaft seal ring may be used for leakage tempera-tures from -25 C to +115 the temperature range below -25 C, the values in the table on page 4 are to be Rexroth AG, RE 92650 Series 10 | Axial piston variable pumpWorking pressure rangeWorking pressure rangePressure at service line port BDefinitionNominal pressure pnom250 bar absoluteThe nominal pressure corresponds to the maximum design pressure pmax280 bar absoluteThe maximum pressure corresponds the maximum working pressure within the single operating period.