Aerospace Hydraulic Pump / Hydraulic Motor Test Bench, rated to 270 bar / 130 LPM / 6000 RPM.

Introduction

In aerospace and defense systems, hydraulic power is the backbone of mission-critical operations. It enables precise actuation of flight control surfaces, deployment of landing gear, braking and steering systems, weapons release mechanisms, and many other essential aircraft subsystems. Any malfunction in a hydraulic pump or motor can jeopardize the entire mission and compromise pilot safety. This makes it imperative that hydraulic components undergo rigorous qualification and endurance testing before being cleared for deployment.

The Aerospace Hydraulic Pump / Hydraulic Motor Test Bench is a state-of-the-art, fully automated validation platform built to replicate the extreme operating conditions encountered by combat and transport aircraft. Specifically engineered to test variable delivery positive displacement axial piston pumps with integrated pressure compensators, this system subjects units to high pressures (up to 270 bar), high flow rates (130 LPM), and high speeds (up to 6000 RPM) — conditions that mirror the harshest aerospace hydraulic environments.

By integrating advanced instrumentation, real-time monitoring, automated data acquisition, and precision control systems, the test bench ensures that pumps not only achieve but sustain their rated performance. It acts as a critical gatekeeper of quality and reliability, ensuring that only thoroughly validated pumps are installed in mission platforms such as the Light Combat Aircraft (LCA).

System Highlights

• Fully Automated Test Bench — delivers precision, repeatability, and minimal operator intervention.
• High-Pressure, High-Flow Capability — replicates combat aircraft conditions at 270 bar and 130 LPM.
• High-Speed Operation — simulates engine-driven pump speeds up to 6000 RPM.
• Comprehensive Test Programs — includes proof pressure, endurance, calibration, stability, and compensator setting.
• Advanced Instrumentation — continuously monitors pressure, flow, RPM, temperature, and case drain leakage.
• Safety-First Engineering — interlocks, fail-safe shutoffs, and overload protection ensure safe operation under extreme loads.
• Automated Data Logging & Analysis — produces detailed test curves, calibration charts, and diagnostic reports for certification.

Applications

• Qualification and acceptance testing of aerospace hydraulic pumps and motors.
• Production-level quality assurance for OEMs and defense contractors.
• Research & Development of advanced hydraulic actuators and systems.
• Life-cycle endurance and fatigue testing of pumps.
• Maintenance validation of in-service components prior to reinstallation.

Test Capabilities

The Aerospace Hydraulic Pump / Motor Test Bench performs a complete spectrum of tests to ensure endurance, stability, and reliability:

• Proof Pressure Tests (Static): Confirms structural integrity under maximum rated conditions.
• Brake-In Run Test (Dynamic): Validates smooth operation by monitoring RPM, flow, pressure, and temperature.
• Load Cycle Tests: Repeated load cycling to simulate aircraft duty cycles and identify fatigue patterns.
• Calibration & Compensator Setting: Fine-tuning of compensator for precise control and stable flow delivery.
• Pressure Control & Stability Tests: Evaluates system responsiveness to sudden load changes.
• Open/Close Cycling: Simulates rapid actuation sequences at pump outlet and case drain for durability assessment.

Advantages

• Assures mission-critical reliability of aircraft hydraulic systems.
• Detects hidden design or manufacturing defects before deployment.
• Reduces in-service failure risks, saving costly downtime and enhancing flight safety.
• Provides data-driven insights to manufacturers for continuous improvement.
• Conforms with stringent aerospace/defense quality standards (AS9100, CE, DGAQA).

Conclusion

The Aerospace Hydraulic Pump / Hydraulic Motor Test Bench is not just a testing system — it is an aerospace reliability assurance platform. By replicating the most demanding flight conditions, it ensures every hydraulic pump installed in aircraft is battle-ready, safe, and durable. Whether for R&D, production testing, or lifecycle validation, this system plays a vital role in safeguarding the operational integrity of modern aerospace platforms.