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{"title":"Original Imported Rexroth Germany 28cc Displacement High Pressure Piston Pump","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/31\/ce4468ef1718a9f6b74e4c9414a7-200x200-1\/original_imported_rexroth_germany_28cc_displacement_high_pressure_piston_pump_with_100_25_tested_great_performance_and_up_to_80_c2.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A2FO80\/61L-VQDN55 A2FO80\/61R-VQDN55 A2FO90\/61R-VUDN55 A2FO90\/61R-PBB05 A2FO90\/61L-PBB05","Certifiion":"ISO","Place of Origin":"Germany"}}
{"title":"German Rexroth Industrial Hydraulic Piston Pump with 12 Months Warranty 100%","imgUrl":"https:\/\/img.chinax.com\/nimg\/c5\/22\/7b29d922c10b11ac94ce0beec2ac-200x200-1\/german_rexroth_industrial_hydraulic_piston_pump_with_12_months_warranty_100_25_tested_great_performance_and_threaded_or_flanged_in.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A2FO90\/61R-PAB05 A2FO90\/61L-PAB05 A2FO90\/61R-PBB05 A2FO90\/61R-VBB05 A2FO90\/61R-VQDN55","Certifiion":"ISO","Place of Origin":"German"}}
{"title":"A4VSO71EO1\/30L-PPB13N00 A4VSO71LR2\/30L-PPB25N00 German piston bar axial","imgUrl":"https:\/\/img.chinax.com\/nimg\/35\/dd\/d32d0532f1879d4c55968ff91d80-200x200-1\/a4vso71eo1_2f30l_ppb13n00_a4vso71lr2_2f30l_ppb25n00_german_piston_bar_axial_excavator_motor_rexroth_brand_new_original_warranty_fo.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A4VSO71EO1\/30L-PPB13N00 A4VSO71LR2\/30L-PPB25N00","Certifiion":"ISO9001","Place of Origin":"German"}}
{"title":"German Rexroth ISO9001 Certified Piston Pump for Mobile and Industrial Hydraulic","imgUrl":"https:\/\/img.chinax.com\/nimg\/73\/0e\/c4fe575b539956cb89a167a3ff3d-200x200-1\/german_rexroth_iso9001_certified_piston_pump_for_mobile_and_industrial_hydraulic_systems_with_clockwise_or_counterclockwise_rotati.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A2FO107\/61R-NBD55 A2FO107\/61R-PPB05 A2FO107\/61R-VPB05 A2FO107\/61R-VSD55 A2FO107\/61L-VSD55","Certifiion":"ISO","Place of Origin":"German"}}
High-performance swashplate axial piston pump manufactured by Rexroth in Germany, designed for demanding industrial appliions with hydraulic load-sensing control.
LR2 — Hydraulic Load-Sensing Control with Pressure Limiter
Mechanical Interface
Shaft Type
Parallel Key Shaft (DIN 6885)
Rotation Direction
Counter-Clockwise (L) — viewed from shaft end
Mounting Flange
ISO 3019-2 (4-bolt, metric)
Port Configuration
PPB13: SAE flanged ports, metric screws, 13 series port plate
Through Drive
N00: No through-drive capability
Sealing & Media
Seal Material
NBR (Standard, code P implied)
Compatible Fluids
Mineral oils (HL/HLP), HFC (Water Glycol with derating)
Weight (approx.)
~240 kg
Related Product Variants
A4VSO40DFR/10R-PKD63N00
A4VSO40DFR/10R-PKD63N00E
A4VSO40DFR/10X-PKD63N00
A4VSO40DFR/10X-PKD63N00-SO62
A4VSO40DP/10R-PKD63N00
A4VSO40DP/10R-PKD63N00E
A4VSO500DP/30R+A4VSO500DP/30RE
A4VSO500DP/30R-PPH13K43E
A4VSO500DP/30R-PPH25K43
A4VSO500LR2G/30R-PPH13N00E
Frequently Asked Questions
Q1: What does "LR2" control mean and how is it different from EO1 or DFR?
LR2 = Purely hydraulic Load Sensing + Pressure Limiter. Requires an external Load Sense (LS) line from the valve bank connected to the pump's LS port (usually X port). The pump delivers only the flow demanded by the valve, saving energy. No electrical input is needed for basic operation.
EO1 = Electro-hydraulic control requiring an external pilot pressure (often from a proportional valve/controller) — no internal LS spring.
DFR/DFR1 = LS + DR with internal spring defining ∆p — simpler for standard fixed-∆p appliions.
LR2 gives flexibility in LS signal conditioning and is common in large systems with distributed valve banks.
Q2: The rotation code is "L" (30L) — what does that mean practically?
"L" = Counter-Clockwise when viewed from the drive shaft end. This is the opposite of the more common "R" (Clockwise). The pump must be driven in this direction — running it in reverse will cause immediate failure due to loss of lubriion and improper suction. Always verify your prime mover / coupling rotates counter-clockwise from the shaft side.
Q3: What are the suction (inlet) requirements for this 500 cc pump?
With 500 cm³/rev displacement, inlet conditions are critical:
At 1200 rpm, inlet absolute pressure should be ≥ 1.0-1.2 bar (boost pump strongly recommended for sustained high-speed operation).
For speeds >1200 rpm, a dedied charge pump / supercharge circuit is essential to prevent cavitation.
Use generously sized inlet piping (≥ DN80/100), minimize elbows/restrictions, and fit a 149 µm (100 mesh) suction strainer.
Q4: Can I mount an auxiliary pump (gear pump) on the rear?
No. The suffix N00 indies no through-drive shaft. The rear of the pump housing is blanked. If you need a through-drive for a charge / pilot gear pump, select a version with a through-drive code such as K01, K02, etc.
Q5: How should the case drain (L port) be handled?
Connect one case drain port directly to the tank with a dedied line — zero backpressure (max 0.5 bar). The second drain port must be plugged. Route the drain line to above the tank oil level or provide a loop to prevent air ingestion. A blocked or pressurized drain = shaft seal failure.
Including mechanical losses (~90%), input power ≈ 390 kW
Recommend a 400 kW (≈535 HP) prime mover with adequate starting torque reserve for 400 bar peak conditions.
Q7: Is the standard NBR seal okay for water glycol (HFC) or phosphate ester (HFD)?
Standard NBR is compatible with HFC (water glycol) with pressure/temp derating. It is NOT compatible with HFD (phosphate ester) — for HFD you need FKM (Viton) seals, typically a custom order with /V suffix. Confirm with Rexroth if your fluid is not mineral oil (HL/HLP).
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
