DATA SHEETSg>
HPR.Self Regulating Pump for Open Loop
Product Catalogue.Turning Power into Motion

HPR-02

Displacement size from 55 to 165D

SELF-REGULATING PUMP FOR OPEN CIRCUIT OPERATION

  •    -  optimum interaction with Linde LSC control valves and LinTronic
  •    -  energy saving operation by ‘flow on demand’-control
  •    -  dynamic response
  •    -  excellent suction up to rated speed
  •    -  noise optimization over the whole range of operation
  •    -  compact design
  •    -  high power density
  •    -  high reliability
  •    -  long working life

Design characteristics

  •    -  axial piston pump in swashplate design for high pressure open circuit systems
  •    -  clockwise or counter clockwise rotation
  •    -  self-priming at high nominal speed
  •    -  tank pressurization or swash angle reduction for high speed applications
  •    -  adaptive noise optimization SPU
  •    -  decompression fluid is discharged via pump housing to keep suction side calm
  •    -  exact and robust load sensing controllers with or without swash plate position feedback

 

Controls

  •    -  LP load sensing with pressure cut-off
  •    -  H1L load sensing with hydraulic ΔpLS – override
  •    -  E1L load sensing with electrical ΔpLS – override
  •    -  LEP load sensing with electric stroke limiter and pressure cut-off
  •    -  ETP electro-proportional with hyperbolic power-limiter and pressure cut-off
  •    -  TL2 load sensing with hyperbolic power limiter

 

Technical Data

HPR-02    55  75  105  135  165  210  280  105D  125D  165D
 Max. displacement cc/rev  55  75.9  105  135.7  165.6  210.1  281.9  210  252  331.2
 Max. operating speed (without tank pressurization) rpm  2700  2500  2500  2350  2200  2100  2000  2450  2400  2150
 Max. oil flow* l/min  148.5  189.8  262.5  318.9  364.3  441.2  563.8   514.5  604.8  712.1
 Nominal pressure bar  420  420  420  420  420  420  420  420  380  420
 Max. pressure** bar  500  500  500  500  500  500  500  500  420  500
 Torque (Δp=430 bar; charge pressure=20 bar) Nm  368  507  702  907  1107  1404  1884  1245  1404  1964
 Corner power KW  104  132.8  183.8  223.2  255  308.8  394.7  360.2  383  431.8
 Weight approx. (without oil)*** kg  39  39  50  65  89  116  165  96  113  177
 *theoretical data of a single unit without efficiency effects 
 **highest transient pressure, that can temporarily occur