Jiubin JB Series Electro-Hydraulic Servo Dynamic and Static Spring Fatigue Testing Machine
| Brand | Jiubin |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | JB Series |
| Price | USD 23,000 (FOB Shanghai) |
Overview
The Jiubin JB Series Electro-Hydraulic Servo Dynamic and Static Spring Fatigue Testing Machine is a high-performance, dual-mode mechanical testing system engineered for precise cyclic loading and static force application on helical compression, tension, and torsion springs—as well as spring components used in automotive, aerospace, railway, and industrial equipment. Based on closed-loop electro-hydraulic servo control architecture, the system delivers synchronized force and displacement control across a broad frequency range (0.01–50 Hz), enabling both low-cycle fatigue (LCF) and high-cycle fatigue (HCF) characterization per ASTM E606, ISO 1083, and GB/T 23935 standards. Its rigid four-column load frame, integrated with high-stiffness hydraulic actuation and real-time digital signal processing, ensures stable waveform fidelity, minimal phase lag, and high reproducibility in long-duration fatigue runs exceeding 10⁷ cycles.
Key Features
- Electro-hydraulic servo actuation with ±100 kN maximum dynamic load capacity (configurable up to ±250 kN with optional upgrade kits)
- Programmable sinusoidal, trapezoidal, random, and block-loading waveforms via digital controller with 1 kHz sampling rate
- Integrated high-resolution load cell (±0.5% FS accuracy) and LVDT-based displacement transducer (±0.1% FS linearity)
- Real-time data acquisition at up to 10 kHz, supporting automatic cycle counting, peak/valley detection, and runout termination logic
- Modular design accommodating environmental chambers (−70 °C to +300 °C) and custom fixtures for compression, extension, and coil-spring torsion testing
- Compliance with ISO 7500-1 Class 1 static calibration and ISO 4965 Class 1 dynamic verification protocols
Sample Compatibility & Compliance
The JB Series supports standardized spring geometries per DIN 2095, ISO 2691, and GB/T 23934—including cylindrical compression springs (wire diameter 1–25 mm, free height 10–500 mm), extension springs with hooks or loops, and conical/tapered variants. Test specimens are secured using hardened steel platens with adjustable centering guides and pneumatic clamping interfaces. All test configurations adhere to GLP-compliant documentation workflows and support audit-ready reporting aligned with ISO/IEC 17025 requirements. When operated with validated software and calibrated transducers, the system meets traceability criteria for internal quality assurance and third-party certification bodies.
Software & Data Management
Control and analysis are executed via Jiubin TestSuite™ v4.2—a Windows-based platform compliant with FDA 21 CFR Part 11 for electronic records and signatures. The software provides multi-channel real-time plotting, automated pass/fail evaluation against user-defined S–N curve thresholds, and export of raw time-series data in ASCII, CSV, and universal MDF4 formats. Built-in report templates generate PDF test certificates including calibration history, environmental conditions, operator ID, and timestamped metadata. Audit trails log all parameter changes, test starts/stops, and data exports with immutable timestamps—enabling full traceability during GMP or IATF 16949 audits.
Applications
- Compression spring endurance validation under variable amplitude loading (e.g., valve spring fatigue in internal combustion engines)
- High-cycle fatigue life prediction of suspension coil springs per SAE J2446 and ISO 12109
- Crack initiation and propagation monitoring using strain-gauge-integrated spring specimens
- Creep-fatigue interaction studies at elevated temperatures using integrated thermal chamber interfaces
- Verification of spring set behavior and permanent deformation limits per ISO 2041
- Qualification testing of medical device springs (e.g., implantable actuator components) under simulated physiological loading profiles
FAQ
What types of springs can be tested on the JB Series machine?
Helical compression, extension, and torsion springs—regardless of material (spring steel, stainless steel, Inconel, or titanium alloys)—are supported within dimensional and stiffness limits defined by the selected actuator and fixture configuration.
Does the system support temperature-controlled fatigue testing?
Yes—when coupled with an externally mounted environmental chamber (optional), the JB Series performs fatigue tests from −70 °C to +300 °C while maintaining full servo synchronization and data integrity.
Is the software compliant with regulatory data integrity requirements?
Jiubin TestSuite™ v4.2 includes role-based access control, electronic signature capability, and immutable audit trails—fully satisfying FDA 21 CFR Part 11 and EU Annex 11 requirements for regulated industries.
Can the machine perform static compression and tensile tests alongside fatigue cycles?
Yes—the dual-mode electro-hydraulic architecture enables seamless transition between quasi-static (0.001–50 mm/min) and dynamic (0.01–50 Hz) test modes without hardware reconfiguration.
What calibration and verification standards does the system conform to?
Static force calibration complies with ISO 7500-1 Class 1; dynamic performance verification follows ISO 4965 Class 1; all transducers are NIST-traceable and supplied with valid calibration certificates.
