Hengyi HY(BP)-5080 Microcomputer-Controlled Electro-Hydraulic Servo Fatigue Testing Machine
| Brand | Hengyi / Hengyitest |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic (China) |
| Model | HY(BP)-5080 |
| Price | Upon Request |
| Static Load Capacity | 50 kN |
| Dynamic Load Capacity | ±50 kN |
| Force Measurement Accuracy | ±0.5% of reading (full range, no range switching) |
| Force Resolution | 1/30,000 (constant across full range) |
| Effective Force Measurement Range | 0.5–20 kN |
| Displacement Range | ±50 mm |
| Displacement Accuracy | ±0.5% of reading (full range, no range switching) |
| Displacement Resolution | 1/30,000 (constant across full range) |
| Function Generator Frequency Range | 0.001–100 Hz |
| Waveform Types | Rectangular, triangular, sinusoidal, ramp, and user-defined waveforms |
| System Bandwidth (Host Response) | 0.01–20 Hz |
| Continuous Operating Frequency | 20 Hz |
| Cycle Counter Capacity | 999,999,999 (presettable) |
| Control Modes | Force and displacement control with seamless in-test switching |
| Effective Test Space | 800 mm |
| Column Spacing | 600 mm |
| Frame Height | 1900 mm |
| Frame Stiffness | 1.7 × 10⁸ N/mm |
| Frame Weight | 1200 kg |
| Hydraulic Power Unit Flow Rate | 80 L/min |
| Hydraulic Working Pressure | 25 MPa |
| Motor Speed | 1450 rpm |
| Actuator | Dual-rod, 150 mm bore |
| Load Cell | 50 kN (Transducer Technologies) |
| Displacement Transducer | 100 mm stroke |
| Controller | DOLI EDX-2000 full-digital servo controller (Germany) |
| Software | Hengyi proprietary fatigue testing software (Windows-based, GLP-compliant data logging) |
Overview
The Hengyi HY(BP)-5080 is a high-performance electro-hydraulic servo fatigue testing machine engineered for precision cyclic loading applications in materials science, mechanical engineering, and industrial R&D laboratories. Based on closed-loop servo-hydraulic actuation and real-time digital control architecture, the system applies controlled dynamic loads—up to ±50 kN peak-to-peak—at frequencies ranging from quasi-static (0.001 Hz) to high-cycle fatigue regimes (up to 20 Hz continuous operation). Its design adheres to fundamental principles of linear elastic fracture mechanics (LEFM) and strain-controlled fatigue testing per ASTM E466 and ISO 1099. The rigid frame (stiffness: 1.7 × 10⁸ N/mm) minimizes parasitic compliance, ensuring high fidelity in force and displacement feedback during long-duration tests—critical for accurate S–N curve generation, crack growth rate (da/dN) analysis, and durability validation under variable-amplitude loading.
Key Features
- Electro-hydraulic servo actuation with dual-rod 150 mm bore actuator, delivering high force density and thermal stability over extended test durations.
- Full-range force measurement accuracy of ±0.5% of reading without range switching, enabled by a calibrated 50 kN load cell (Transducer Technologies) and 1/30,000 constant-resolution A/D conversion.
- Integrated DOLI EDX-2000 digital controller (Germany) supporting real-time PID tuning, adaptive waveform tracking, and multi-channel synchronization (force, displacement, extensometry).
- Programmable function generator supporting standard waveforms (sinusoidal, triangular, rectangular, ramp) plus arbitrary user-defined profiles—essential for simulating complex service loads (e.g., road spectra, wind gusts, or seismic excitations).
- Robust structural frame (1200 kg mass, 1900 mm height, 600 mm column spacing) optimized for modal stability and minimal resonance interference up to 20 Hz.
- Hydraulic power unit rated at 80 L/min flow and 25 MPa working pressure, equipped with pressure-compensated pump and filtration compliant with ISO 4406 Class 18/15/12.
Sample Compatibility & Compliance
The HY(BP)-5080 accommodates metallic specimens (steels, aluminum alloys, titanium), polymer composites, welded joints, and additively manufactured components. Standard fixtures include spring compression assemblies and adjustable wedge-type grips (0–20 mm jaw opening), with optional extensometers, environmental chambers, and acoustic emission sensors available for advanced characterization. The system supports test protocols aligned with ASTM E466 (constant-amplitude axial fatigue), ASTM E606 (strain-controlled fatigue), ISO 1099 (fatigue testing of metallic materials), and GB/T 3075 (Chinese national standard for metal fatigue). All raw data acquisition, parameter logging, and report generation comply with ALCOA+ principles; audit trails, electronic signatures, and user-access controls are implemented in accordance with FDA 21 CFR Part 11 requirements when configured with validated software modules.
Software & Data Management
Hengyi’s proprietary Windows-based fatigue testing software provides intuitive test definition, real-time visualization (force vs. time, hysteresis loops, cycle-by-cycle statistics), and automated pass/fail evaluation against preset thresholds (e.g., stiffness degradation >15%, peak force drift >3%). Data export is supported in CSV, XML, and universal MDF4 formats for post-processing in MATLAB, Python (SciPy/Pandas), or commercial FEA tools. The software maintains immutable records—including calibration history, operator ID, environmental metadata, and hardware configuration snapshots—enabling full traceability for GLP/GMP audits. Remote monitoring via Ethernet TCP/IP interface allows integration into centralized lab informatics systems (LIMS).
Applications
- High-cycle fatigue (HCF) life prediction of aerospace fasteners and turbine disk materials under 10⁶–10⁹ cycles.
- Low-cycle fatigue (LCF) and thermomechanical fatigue (TMF) studies using synchronized thermal actuators (optional).
- Dynamic modulus and damping characterization of viscoelastic polymers and elastomeric mounts.
- Component-level durability validation of automotive suspension links, brake calipers, and EV battery enclosures.
- Calibration and verification of strain gages, piezoelectric sensors, and structural health monitoring (SHM) systems.
FAQ
What is the maximum continuous operating frequency for fatigue testing?
The system is rated for uninterrupted operation at 20 Hz, verified under full-load conditions (±50 kN) with active cooling and ISO 18/15/12 hydraulic fluid cleanliness.
Does the controller support closed-loop strain control?
Yes—the DOLI EDX-2000 controller accepts input from clip-on or non-contact extensometers (e.g., video extensometry) and executes real-time strain regulation with sub-micron resolution when paired with compatible transducers.
Can the software generate ASTM-compliant test reports automatically?
Yes. Report templates conform to ASTM E466 Annex A1 and include specimen geometry, loading parameters, cycle count, failure mode annotation, and statistical confidence intervals (95% CI) for life data.
Is the system suitable for corrosion fatigue testing?
With optional environmental chamber integration (temperature/humidity/salt fog), the HY(BP)-5080 supports standardized corrosion fatigue protocols such as ASTM G46 and ISO 15197.
What documentation is provided for IQ/OQ/PQ validation?
Factory-issued Installation Qualification (IQ) and Operational Qualification (OQ) protocols are supplied; Performance Qualification (PQ) templates align with ISO/IEC 17025 and can be executed using NIST-traceable reference standards.
