What is the difference between a servo-hydraulic and a standard hydraulic tester?
Date: January 2, 2026Views: 1694
The key difference is control precision. A standard (or open-loop) hydraulic tester uses manual valves to apply force, offering basic functionality for simple break tests. A servo-hydraulic tensile testing machine employs a closed-loop digital control system. It uses real-time feedback from sensors to a servo valve, allowing for precise control of load, displacement, or strain. This enables not only highly accurate static tests but also complex dynamic waveforms, sine waves, and fatigue cycles, making it essential for modern R&D and certification labs.
