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A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump

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A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump

A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump
A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump

Image Grand :  A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump

Détails sur le produit:
Lieu d'origine: Allemand
Nom de marque: Rexroth
Certification: ISO
Numéro de modèle: A4VSO125LR2/30L-PPB25N00
Conditions de paiement et expédition:
Quantité de commande min: 1
Détails d'emballage: Coffret en bois
Délai de livraison: 2 semaines
Conditions de paiement: Western Union, D/P, T/T, L/C, D/A
Capacité d'approvisionnement: 100
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A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump

description de
Origine: Allemagne CONFIG GAUCHES: PPB25 SAE
Type de contrôle: LR2 – Puissance constante (limitation de puissance) Modèle: A4VSO125LR2/30L-PPB25N00
Déplacement: 125 cm³/h
Mettre en évidence:

Rexroth A4VSO125 piston pump

,

German made A4VSO125 pump

,

A4VSO125LR2 hydraulic piston pump

A4VSO125LR2/30L-PPB25N00 Rexroth A4VSO125 series German made piston pump
Product Introduction
The Rexroth A4VSO125LR2/30L-PPB25N00 is a genuine German-manufactured A4VSO series open-circuit axial piston variable pump, equipped with LR2 constant power (horsepower) limiting control. With a displacement of 125 cm³/r and PPB25 SAE flange & ports, the pump automatically reduces its displacement as system pressure rises so that the product of pressure × flow (input power) does not exceed a preset limit.
This feature is essential when the driving electric motor has a defined power ceiling -- the LR2 control prevents motor overload while maximizing available hydraulic output. It is widely used in heavy presses, extrusion lines, plant-wide hydraulic power units, and process industry systems. Rated for 350 bar continuous / 400 bar peak.
Technical Specifications
Parameter Value
Manufacturer Rexroth, Made in Germany
Series A4VSO - Open Circuit Swashplate Axial Piston Variable Pump
Model Code A4VSO125LR2/30L-PPB25N00
Geometric Displacement (Vg max) 125 cm³/r
Nominal Pressure 350 bar
Peak Pressure 400 bar
Maximum Speed (nnom) Approx. 1900-2000 rpm
Theoretical Flow @1500 rpm Approx. 187.5 L/min
Theoretical Flow @1800 rpm Approx. 225 L/min
Drive Power @350 bar & 1500 rpm Approx. 109 kW
Control Type LR2 - Constant Power (Horsepower) Limiting Control (displacement decreases as pressure increases to keep input power ≤ preset value)
Rotation L - Left-hand (viewed from shaft end)
Flange & Port PPB25 - SAE Flange & SAE Port (larger porting)
Through Drive N00 - Without Through Drive (tandem-ready variants available on other A4VSO codes)
Hydraulic Fluid Mineral Oil HLP, HFC Water-Glycol Permissible (Derated)
Approximate Weight 75-78 kg
Rexroth A4VSO125 series piston pump technical diagram
Working ports 13 and 25, flat key splines p and z, seals p and v, control mode: drg
a4vso125drg/30r-ppb13n00 a4vso125drg/30r-ppb25n00
a4vso125drg/30r-pzb13n00 a4vso125drg/30r-pzb25n00
a4vso125drg/30r-vpb13n00 a4vso125drg/30r-vpb25n00
a4vso125drg/30r-vzb13n00 a4vso125drg/30r-vzb25n00
Working ports 13 and 25, flat key splines p and z, seals p and v, control mode: lr2
a4vso125lr2/30r-ppb13n00 a4vso125lr2/30r-ppb25n00
a4vso125lr2/30r-pzb13n00 a4vso125lr2/30r-pzb25n00
a4vso125lr2/30r-vpb13n00 a4vso125lr2/30r-vpb25n00
a4vso125lr2/30r-vzb13n00 a4vso125lr2/30r-vzb25n00
Working ports 13 and 25, flat key splines p and z, seals p and v, control mode: eo1
a4vso125eo1/30r-ppb13n00 a4vso125eo1/30r-ppb25n00
a4vso125eo1/30r-pzb13n00 a4vso125eo1/30r-pzb25n00
a4vso125eo1/30r-vpb13n00 a4vso125eo1/30r-vpb25n00
a4vso125eo1/30r-vzb13n00 a4vso125eo1/30r-vzb25n00
Working ports 13 and 25, flat key splines p and z, seals p and v, control mode: eo2
a4vso125eo2/30r-ppb13n00 a4vso125eo2/30r-ppb25n00
a4vso125eo2/30r-pzb13n00 a4vso125eo2/30r-pzb25n00
a4vso125eo2/30r-vpb13n00 a4vso125eo2/30r-vpb25n00
a4vso125eo2/30r-vzb13n00 a4vso125eo2/30r-vzb25n00
LR2 Constant Power Control - Why It Matters
Unlike DR (constant pressure) or DFR (pressure+flow pilot), LR2 protects your prime mover:
  • Automatically de-strokes the pump as pressure rises to keep motor input power below a preset kW/hp limit
  • Prevents electric motor overheating or tripping on overload during high-pressure stalls
  • Allows full flow at low pressure and gradually reduces flow as pressure builds -- optimizing energy use
  • Adjustable power setpoint via built-in spring (some variants pilot-influenced -- see LR2G for pilot option)
  • Ideal for fixed-speed electric motor drives where motor rated power is the system bottleneck
➡ PPB25 SAE porting minimizes pressure drop in higher-flow piped hydraulic power units.
Typical Applications
  • Heavy hydraulic presses (forging, extrusion, molding) with fixed-power electric drives
  • Industrial hydraulic power units (HPU) in continuous-process plants
  • Metal forming and stamping lines
  • Large plastic injection molding machines (clamp/aux pump)
  • Testing laboratories simulating load-limited hydraulic power sources
  • General heavy industry requiring motor overload protection
Global Sales Countries / Regions
Distributed through Rexroth's authorized global dealer network, including:
  • Europe: Germany, Italy, France, UK, Spain, Netherlands, Austria, Switzerland, Poland, Czech Republic, Sweden
  • Asia-Pacific: China, Japan, South Korea, India, Taiwan, Thailand, Malaysia, Vietnam, Indonesia, Australia
  • Americas: USA, Canada, Mexico, Brazil, Chile (industrial regions)
  • Middle East & Africa: UAE, Saudi Arabia, Turkey, South Africa
Power setting procedure, commissioning support and lead time vary by region -- please contact your local authorized Rexroth distributor.
Frequently Asked Questions
Q1: What is the difference between LR2 and DR control on A4VSO pumps?
A1: DR maintains a constant pressure by destroking when set pressure is reached. LR2 limits input power (pressure × flow) -- the pump delivers full flow at low pressure and gradually reduces displacement as pressure rises, so motor load never exceeds the preset power limit.
Q2: Can LR2 prevent my electric motor from burning out?
A2: Yes, when correctly set. LR2 ensures the pump will not draw more power than the preset value, helping avoid motor overload during high-pressure hold or stall conditions -- provided the LR2 power setting matches your motor's rated capacity.
Q3: Is a pressure relief valve still required?
A3: Yes. A system pressure relief valve is still necessary as ultimate overpressure protection, even with LR2 control.
Q4: Can this pump be used in a closed-circuit hydrostatic transmission?
A4: No. The A4VSO series is for open circuit (open loop) only. For closed-loop track/wheel drives, use the A4VG or A4VM series.

Produit Tag:

piston Rexroth,

Pompes à piston axiale,

pompe à piston électrique

Coordonnées
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

Personne à contacter: Mr. liyun

Téléphone: +8615280488899

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