Rexroth EHP Electrohydraulic pumps

Rexroth EHP Electrohydraulic pumps

Rexroth EHP Electrohydraulic pumps staged modular principle that electric motor and pump can be combined according to the required performance, guaranteeing:

  • high efficiency
  • low noise
  • high operating pressure
  • compact dimensions
  • long service life
  • consistent quality

Application areas

As drive groups in vehicles, they are employed primarily for the lifting and steering functions.

Specification

General
Installation positionVertical, hydraulic pump at bottom; horizontal as shown in dimensions drawing. Condensation opening, if fitted, at bottom
Ambient temperature rangebetween –25 °C and +60 °C
MountingSaddle mounting with wire tie
Pump
DesignExternal gear pump
TypeAZPB...AZPF...AZPJ...AZPS...
Displacementcm³/rev1.0 – 7.14.0 – 22.512.0 – 22.54.0 – 22.5
Suction pressurebarmin. 0.7 max. 3 (absolute)
max. continuous pressure p1**)200 – 250180 – 250250220 – 250
max. intermittent pressure p2**)230 – 280210 – 280280250 – 280
max. peak pressure p3**)250 – 300230 – 300300290 – 300
Line portsAZPB/F/S: Thread, flange, others on request
Fluids– Mineral oil compliant with DIN 51524, 1–3, however under higher load at least HLP compliant with DIN 51524 Part 2 recommended.
– Comply with RE 90220
– Further operating fluids possible after consultation
Viscosity12 ... 800 mm²/s permitted range
20 ... 100 mm²/s recommended range
... 2000 mm²/s permitted for start up
Temperature of hydraulic fluid–25 ... +80 °C
Filtration *)At least cleanliness level 21/18 /15 compliant with ISO 4406 (1999)
Electric motor
DesignDC motor with compound or series winding
Size (code)IKLPST
Terminal case Ø mm110 . . . < 12020 . . . < 130130 . . . < 140150 . . . < 160160 . . . < 170170 . . . < 180
Voltage (volts)12, 24, 40, 48, 72, 80 see overview of range
Power output (kW)1.5 ... 8.1, other outputs on request
Protection classsee Program overview
DiagramsThese are valid for operation under the following conditions:
Ambient temperature +20 °C
Electrolyte temperature +20 °C
Motor temperature +20 °C
Oil temperature +50 °C
Viscosity ν = 32 mm2/s
S2, S3 see VDE 0530
Relay (not available in every version)
Voltage12 V24 V
Exciter current1.5 A0.9 A
Contact current at S3 = 12 %350 A
Contact current, continuous150 A
Protection classIP54 / IP6K9K / IP66 auf Anfrage

**) On hydraulic systems or devices with critical counter-reaction, such as steering valves, brake valves, the type of filtration selected must be adapted to the sensitivity of these devices/systems.Safety requirements pertaining to the whole systems are to be observed.
Please contact us with respect to applications with high numbers of load cycles
.**) Detailed information, see series

  • B: RE10087
  • F: RE10089
  • J: RE10094
  • S: RE10095

Download Datasheet: Rexroth EHP Electrohydraulic pumps

ref: boschrexroth.com

Berbagi:  

Komentar

Articles