UNIMAR Hydraulic Tester Bench （勿删）
Project Background
On August 8th, 2025, we received an email from a customer requesting a hydraulic tester. The application was to inspect repaired hydraulic cylinders for any leakage. The largest hydraulic cylinder to be tested features a maximum bore size of 200mm, a maximum stroke of 1700mm, an operating pressure of 250 bar, and a maximum test pressure of 300 bar. The cylinder type specified is double-acting.
Project Solution
- Manual pressure adjustment via relief valve
- Precise cylinder movement control
- Multi-point pressure monitoring
- Integrated electrical and wireless remote control
- Safe and efficient cylinder leakage testing
After receiving the customer’s requirement for hydraulic cylinder leakage testing, we provided a tailored hydraulic tester solution designed for efficient and precise single-cylinder testing.
Manual Pressure Adjustment:
The test pressure is manually controlled via a relief valve to ensure flexible testing according to cylinder specifications.
Cylinder Movement Control:
Directional valve provides precise extension and retraction of the hydraulic cylinder.
Speed and Position Control:
– Throttle valve allows operators to adjust the cylinder’s movement speed as needed.
– Pilot-operated check valve ensures the cylinder can securely hold at any position during the testing process.
Comprehensive Pressure Monitoring:
The hydraulic station is equipped with three independent pressure gauges for real-time monitoring of:
– System pressure
– Rod end pressure
– Cap end pressure
Advanced Electrical Controls:The system integrates an electrical control box and wireless remote, enabling:
– Motor start/stop and emergency stop
– Pump loading/unloading operations
– Cylinder extension and retraction
These features enhance both safety and operational efficiency.
Project Results
The hydraulic cylinder test bench was successfully designed, manufactured, and commissioned on schedule.
All required parameters—including max. test pressure up to 300 bar, bore size up to 200mm, and stroke up to 1700mm—were fully supported and verified.
During the commissioning phase, the system performed stable leak testing for various double-acting hydraulic cylinders, meeting precise control and safety requirements.
The customer reported high satisfaction with the tester’s operational flexibility, accurate pressure monitoring, and user-friendly remote control features.
The solution effectively ensures that repaired cylinders are leak-free before being put back into service, thus reducing maintenance risks and improving overall productivity.
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