Series 45 Open Circuit Axial Piston Pumps Technical .
Series 45Open Circuit AxialPiston PumpsTechnicalInformationDisplacement PistonPistonSwashplateTapered RollerBearingTapered RollerBearingShaft SealValve PlateCylinder Block Kit
Series 45 Axial Piston Open Circuit PumpsTechnical InformationGeneral DescriptionBASIC DESIGNSeries 45 open circuit pumps can be applied with other products in a system to transferand control hydraulic power.Series 45 pumps provide an infinitely variable flow rate between zero and maximum.Series 45 variable displacement pumps are compact, high power density units, usingthe axial piston concept in conjunction with a tiltable swashplate to vary the pumpdisplacement.SERIES 45 PRODUCTRANGEContinuous Pressure Ratingbar [psi]Series 45 pumps use a cradle swashplate design. A hydraulic control piston sets theswashplate angle. Control of the displacement piston is provided through a built-inpressure compensator valve. This valve will vary the swashplate angle from its maximumto its minimum position when the set pressure is reached. Controls are also availablefor remote compensating and load sensing systems. An available displacement limiter(frame G and H units only) allows adjustment of maximum flow to match systemrequirements. The Series 45 pump controls are designed for low hysteresis andresponsive 08090100P101 575ESeries 45 open circuit pumps cover a displacement range from 25cc [1.53 in3] to 90cc[5.49in3] and a continuous pressure rating range from 210 bar [3045 psi] to 310 bar[4495 psi] with peak pressure ratings to 400 bar [5800 psi]*. Each pump in the series isoptimized to a specific pressure rating. The chart above shows how the displacementsare arranged with respect to pressure rating.*Refer to Technical Data, pages 13 through 15 for specific ratings. For more information on pressure ratings seePressure Rating, page 8 and Pressure Limits, page 16.Copyright 1995, 1999, 2001 Sauer-Danfoss CompanyAll rights reserved. Contents subject to change.Printed in U.S.A. 0601 H2BLN-10128 Revision B June 2001
Series 45 Axial Piston Open Circuit PumpsTechnical InformationTable of ContentsCONTENTSGeneral Description.2Basic Design .2Series 45 Product Range.2Table of Contents .3Technical Features.6System Circuit Description.7Product Coding .8Revised Model Code .8Name Plate .8Pressure Rating .8Technical Specifications.9Design .9Mounting .9Auxiliary Mounting Pad Options .9Control Options .9Port Connections.9Direction of Rotation .9Installation Position.9Hydraulic parameters .9Inlet Pressure .9Pressure Compensator Valve Setting .9Case Pressure.9Temperature Range.9Fluid Viscosity Limits.9Hydraulic Fluids . 10System Requirements. 10Filtration . 10Reservoir . 11Case Pressure. 11Temperature Limits . 11Pump Installation and Line Sizing. 12Pump Installation . 12Equations for Estimating Line Losses. 12Technical Data . 13Frame K and L Pumps . 13Frame H Pumps. 14Frame G Pumps. 15Definitions . 16Speed Ratings. 16Pressure Limits . 16Hydraulic Equations for Pump Selection . 16Options . 17Auxiliary Mounting Pads . 17Input Shafts . 19Displacement Limiter. 19Controls . 20Pressure Compensator (PC) Control . 20Remote PC Control . 20PC Control Schematic Diagrams. 21Remote PC Control Schematic Diagrams . 21Load Sensing (LS) Control . 22LS Control Schematic Diagrams. 23BLN-10128 Revision B June 20013
Series 45 Axial Piston Open Circuit PumpsTechnical InformationTable of ContentsCONTENTS (continued)4Loads and Life. 24Bearing Life. 24Shaft Loads . 24Mounting Flange Loads . 25Estimating Overhung Load Moments . 25Sound Levels . 26Performance Graphs - 25cc . 27Performance Graphs - 30cc . 28Performance Graphs - 38cc . 29Performance Graphs - 45cc . 30Performance Graphs - 57cc . 31Performance Graphs - 74cc . 32Performance Graphs - 75cc . 33Performance Graphs - 90cc . 34Installation Drawings. 35Frames K and L (25, 30, 38, and 45cc) . 35SAE B Flange with Axial Porting. 35SAE B Flange with Radial Porting . 37Auxiliary Mounting Flanges . 39Input Shafts . 40Frame H (57 and 75cc). 41SAE C Flange with Axial Porting. 41SAE C Flange with Radial Porting. 43SAE B Flange with Axial Porting. 45SAE B Flange with Radial Porting . 47Auxiliary Mounting Flanges . 49Input Shafts . 51Frame G (74 and 90cc). 53SAE C Flange with Axial Porting. 53SAE C Flange with Radial Porting. 55Auxiliary Mounting Flanges . 57Input Shafts . 59BLN-10128 Revision B June 2001
Series 45 Axial Piston Open Circuit PumpsTechnical InformationNotesBLN-10128 Revision B June 20015
Series 45 Axial Piston Open Circuit PumpsTechnical InformationTechnical FeaturesA COMPLETE FAMILY TOMEET MARKET NEEDS 25 cc [1.53 in3]57 cc [3.48 in3]330 cc [1.83 in ]74 cc [4.52 in3]338 cc [2.32 in ]75 cc [4.57 in3]345 cc [2.74 in ]90 cc [5.47 in3] Additional displacements under development Wide range of installation options Control system flexibility - pressure compensated, load sensing, and remote pressurecompensated controls High power auxiliary drives for multiple pump configurations Open circuit installationsTHE LATEST TECHNOLOGY HIGH PERFORMANCE Speeds to 3600 min-1 (rpm)Pressure to 310 bar [4495 psi] continuousHigh overall efficiencyFast response timesFast recovery timesLow noise levelsRELIABILITY / DURABILITY Designed to rigorous standardsProven in the laboratory and in the fieldManufactured to rigid quality standardsLong service lifeSignificantly fewer partsNo gasketed jointsRobust input shaft bearings handle large external shaft loadsGLOBAL PRODUCT Designed for worldwide markets Identical product available worldwide Mobile, industrial, and stationary marketsWORLDWIDE SUPPORT Sales and technical support in all industrialized countries of the world Serviced by a worldwide network of authorized service centers6Maximum controllability in all modes of operationHigh power densityDesigned to lower installation costsDesigned to reduce operating costsDesigned using the proven methods of quality function deployment (QFD) anddesign for manufacturability (DFM) Unique assembly methods increase reliabilityBLN-10128 Revision B June 2001
Series 45 Axial Piston Open Circuit PumpsTechnical InformationSystem Circuit DescriptionLoad pressureTo microcontrollerGear typehydraulic motorReturn and case drain linesWorking pressureControl pressureSuction lineElectrohydraulicproportional flow valveLoad sensing, pressurecompensating pump controlHeat exchangerbypass valveAxial pistonopen circuit pumpReservoirHeat exchangerReturnfilterDirectional control("stack") valveP101 371EThis illustration shows an open circuit hydraulic system using a Series 45-57cc Axial PistonOpen Circuit Pump with a load sensing, pressure compensating control providing flow inparallel to a modulating fan control valve and a PVG 32 directional flow control valve.BLN-10128 Revision B June 20017
Series 45 Axial Piston Open Circuit PumpsTechnical InformationProduct CodingREVISED MODEL CODETo support the growing family of Sauer-Danfoss variable displacement open circuitpiston pumps, the option ordering code was altered in 2000.Previously, the order code appeared as follows:45L057 LS 20 20 NN A 3 S1C2 A1N NNN NNN NNNThe new order code appears like this:HRL 057B LS 20 20 NN A 3 S1C2 A1N NNN NNN NNNThe highlighted area of the new code provides the flexibility to incorporate multiplepump displacements in the same pump design. In the above example: H pump design type (referred to as frame) R open circuit L counter clockwise (CCW) input rotation 057 maximum displacement (cc) B pressure ratingName PlateNAME .Model CodeHRL 057B LS2020NNA3S1C2A1 NNNNNNNNNNSerial-No.SerialNumberA - 00 - 13 - 67890Made in USAP101 372EPlace of ManufacturePRESSURE RATINGEach pump displacement in the Series 45 product family has a specific maximum andcontinuous pressure rating. This allows the product selection to be tailored to the flowand pressure requirements of the application. Currently, three pressure ratings exist:CodePressure Rating CodesMaximum Pressure, bar [psi]Continuous Pressure, bar [psi]B400 [5800]310 [4495]C350 [5075]260 [3770]D300 [4350]210 [3045]Refer to pages
Series 45 Axial Piston Open Circuit Pumps Technical Information General Description Series 45 open circuit pumps can be applied with other products in a system to transfer and control hydraulic power. Series 45 pumps provide an infi nitely variable fl ow rate between zero and maximum.
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Series 45 Axial Piston Open Circuit Pumps Technical Information General information oveRview Series 45 is a complete family of variable displacement, axial piston pumps for open circuit applications. Each frame within the Series 45 family is uniquely designed to optimize performance, size, and cost, matching the work function requirements of the
J Frame Series 45 open circuit axial piston pump with load sensing control Full available flow is a function of pump displacement, operating speed, and efficiency. Refer to Series 45 Axial Piston Open Circuit Pumps Technical Information, 520L0676 for details. Service Manual Series 45 J Frame Open Circuit Axial Piston Pumps Introduction
The Effect of an Open in a Series Circuit An open circuit is a circuit with a break in the current path. When a series circuit is open, the current is zero in all parts of the circuit. The total resistance of an open circuit is infinite ohms. When a series circuit is open,
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Total Sevice Axial load 765 630 kN 1395 kN Ultimate axial load 1.2 765 1.6 630 1926 kN Column type (2): Axial 2unfactored Dead load 42.5 kN/m2 4 7 m 1190 kN Axial unfactored Live 2load 35 2kN/m 4 7 m 980 kN Total Sevice Axial load 1190 980 kN 2170 kN Ultimate axial load 1.2 1190 1.6 980 2996 kN
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