Liebherr 592236414 10113397 R994 11005119 11005115 11347382 11347379A 11485276A Excavator Hydraulic Pump for Sale
Liebherr 592236414 10113397 R994 11005119 11005115 11347382 11347379A 11485276A Excavator Hydraulic Pump for Sale
- Product Details
Liebherr R 9250 excavator hydraulic pump: The Unstoppable Hydraulic Powerhouse and its Core Components
The Liebherr R 9250 is not merely an excavator; it is a titan of the mining and heavy construction industries. Representing the pinnacle of German engineering from Liebherr (liebherr.com), this ultra-class machine is designed for 24/7 operation in the world’s most demanding open-pit mines and mega-projects. Its primary function is massive-scale earthmoving and overburden removal, where productivity is measured in thousands of tons per hour. The colossal force required for its 42-cubic-meter bucket is generated by an immensely powerful and intelligent hydraulic system. At the heart of this system lie the main hydraulic pumps, including critical components like the Liebherr 10113397 R994 and the AL A20VO series pumps, which are engineered to deliver relentless, high-pressure power.
Technical Deep Dive: Engineering for Extreme Duty
The AL A20VO hydraulic pump powering the Liebherr R 9250 are masterpieces of durability. They operate in an environment characterized by constant high pressure, severe shock loads from digging, and pervasive abrasive dust.
Unmatched Pressure & Shock Resistance: These axial piston pumps are built to continuously generate the extreme pressures (often exceeding 350 bar) needed to operate multiple large cylinders simultaneously. Models like the 592236414 and 11005119 are designed with reinforced housings and hardened internal components to withstand the relentless stress cycles of digging through rock and compacted material.
Built for Hazardous & Contaminated Environments: True mining-grade components, such as the 11005115, feature advanced, multi-layered sealing systems. These seals are critical for preventing the ingress of fine, abrasive silica dust—the primary enemy of hydraulic systems—and protecting against moisture, ensuring reliability in all weather conditions.
Thermal Management & Continuous Operation: Engineered for non-stop duty, these pumps efficiently manage the tremendous heat generated by converting thousands of kilowatts of engine power into hydraulic force. This design prevents overheating and maintains optimal fluid viscosity, which is crucial for the longevity of other system components.
This engineering excellence is backed by a comprehensive one-year warranty, providing mine operators with confidence in component reliability and support. For detailed technical specifications on these pumps, visit www.baolilai-pump.com/contact_us/.
Application Spectrum: Beyond the Mining Face
While the R 9250 excels in mining, the robust hydraulic technology from Liebherr powers a diverse range of heavy equipment across global industries.
| Application Sector | Liebherr Equipment Examples | Hydraulic Pump Role |
|---|---|---|
| Mining & Quarrying | R 9250, R 9800 excavators; T 284 haul trucks | Primary power source for digging, hoisting, and swing functions. Pumps like the 11347382 are built for this ultra-heavy cycle. |
| Heavy Construction | Large wheel loaders, material handlers | 592236414 Provides high-force, responsive control for loading, grading, and bulk material handling. |
| Foundation & Piling | Deep foundation drill rigs | Delivers precise, high-torque power for rotary drives and crowd mechanisms in specialized rigs. |
| Marine & Industrial | Offshore cranes, industrial winches | Ensures reliable and safe lifting power in critical, remote, or corrosive environments. Components such as the 11347379A and 11485276A are specified for such demanding duties. |
| Product Model No. | Application equipment brands | Application equipment No. |
| A20VLO | Liebherr | 592236414 |
| AL A20VO | Liebherr | 10113397 R994 |
| AL A20VO | Liebherr | 11005119 excavator9250,9350,9400 |
| AL A20VO | Liebherr | 11005115 excavator9250 |
| AL A20VO | Liebherr | 11347382 excavator9800 |
| AL A20VO | Liebherr | 11347379A excavator9250,9350,9400 |
| AL A20VO | Liebherr | 11485276A excavator9350/9400 |
Frequently Asked Questions (FAQ)
Q1: What happens if a main pump like the 10113397 fails on site?
A1: A failure leads to immediate and costly downtime. This underscores the importance of using genuine, OEM-quality replacement parts and adhering to strict preventive maintenance schedules, including regular fluid analysis, to predict and prevent catastrophic failures.
Q2: Why is using a genuine AL A20VO pump better than a generic alternative for the R 9250?
A2: Genuine pumps like the 10113397 R994 or 11005115 are not just physically interchangeable; they are electronically calibrated to work seamlessly with the machine’s sophisticated load-sensing and engine management systems. A non-genuine pump can cause poor performance, inefficiency, and potentially damage other expensive components.
Q3: How does the pump design contribute to the excavator’s overall fuel efficiency?
A3: Modern pumps on machines like the R 9250 use advanced load-sensing technology. They deliver only the flow and pressure required for the task at hand, minimizing wasted hydraulic power and reducing the load on the diesel engine, which directly translates to lower fuel consumption per ton of material moved.
Q4: Are these pumps serviceable, or are they replaced as a unit?
A4: While some field servicing is possible, the complexity, required precision, and need for absolute cleanliness often make a complete unit exchange with a factory-remanufactured pump (like a certified 11485276A) the most reliable and cost-effective solution to minimize machine downtime.
Specification
