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The Rexroth A4VSO180LR2G/30L-PPB13N00 is a genuine German-manufactured A4VSO series open-circuit axial piston variable pump, featuring LR2G constant power (horsepower) limiting control with pilot pressure limitation. With a displacement of 180 cm³/r and PPB13 SAE compact flange & ports, this pump is specifically suited to heavy-duty hydraulic power units in steel plants, rolling mills, coking plants, and coal mine surface installations.
The LR2G control automatically reduces pump displacement as system pressure rises so that input power (pressure × flow) stays within a preset limit, while the pilot port allows the power setpoint to be externally influenced—a critical feature when protecting fixed-speed electric motors that drive large plant HPUs. The compact PPB13 porting is commonly selected for manifold-mounted skid designs found in plant hydraulic rooms installations.
Technical Specifications
Parameter
Value
Manufacturer
Rexroth, Made in Germany
Series
A4VSO - Open Circuit Swashplate Axial Piston Variable Pump
Model Code
A4VSO180LR2G/30L-PPB13N00
Geometric Displacement (Vg max)
180 cm³/r
Nominal Pressure
350 bar
Peak Pressure
400 bar
Maximum Speed (nnom)
Approx. 1800 rpm
Theoretical Flow @1500 rpm
Approx. 270 L/min
Theoretical Flow @1800 rpm
Approx. 324 L/min
Drive Power @350 bar & 1500 rpm
Approx. 158 kW
Control Type
LR2G - Constant Power (Horsepower) Limiting Control with Pilot Pressure Limitation (displacement decreases as pressure increases to keep input power ≤ preset; pilot port influences setting)
Rotation
L - Left-hand (viewed from shaft end)
Flange & Port
PPB13 - SAE Flange & SAE Port (compact porting, smaller than PPB25)
Through Drive
N00 - Without Through Drive (tandem-ready variants available on other A4VSO sizes)
Hydraulic Fluid
Mineral Oil HLP, HFC Water-Glycol Permissible (Derated)
Approximate Weight
102-103 kg
LR2G Control - Why It's Preferred in Steel & Mine HPUs
In steel mill and mine plant hydraulic power units, pumps are typically driven by fixed-speed AC motors with defined kW ratings. LR2G protects the prime mover:
Delivers full flow at low system pressure for fast cylinder advance/retract
As pressure builds (clamp hold, roll positioning, roof support pump station), displacement is reduced to keep motor power below the preset limit
Pilot pressure port allows the power limit to be influenced from a central control system or by a supervisory pilot valve
Prevents motor overload relay trips during high-pressure hold conditions
Adjustable power setpoint to exactly match your motor's rated capacity
➡ PPB13 compact SAE porting is ideal for manifold-integrated plant HPU skids where space is limited.
Asia-Pacific: China, Japan, South Korea, India, Taiwan, Thailand, Malaysia, Vietnam, Australia
Americas: USA, Canada, Mexico, Brazil, Chile (mining & industrial regions)
Middle East & Africa: UAE, Saudi Arabia, Turkey, South Africa
Frequently Asked Questions
Q1: What is the advantage of LR2G over standard DR or DFR in a steel mill HPU?
A1: DR/DFR control pressure or flow but do not inherently limit input power. LR2G actively limits motor input power (bar × L/min)—essential when your electric motor is sized near the pump's max power demand—preventing overload during high-pressure hold common in mill stand clamps and position-hold circuits.
Q2: What is the difference between PPB13 and PPB25?
A2: Both use SAE flanges/ports. PPB13 is the compact SAE port size for manifold-mounted skids; PPB25 uses larger SAE ports for high-flow piped systems. Pump performance is identical—select based on your hydraulic manifold or hose standard.
Q3: Can this pump be used in a closed-circuit track drive?
A3: No. The A4VSO series is for open circuit (open loop) only. For closed-loop track/wheel motor drives, use the A4VG or A4VM series.
Q4: Is a pressure relief valve still required with LR2G?
A4: Yes. A system pressure relief valve is still necessary as ultimate overpressure protection.
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...
