YANRUN WEW-600D Microcomputer-Controlled Electro-Hydraulic Servo Universal Testing Machine
| Brand | YANRUN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | WEW-600D |
| Instrument Type | Electro-Hydraulic Servo Testing Machine |
| Max. Test Load | 600 kN |
| Tensile Jaw Maximum Spacing | 600 mm |
| Flat Specimen Clamping Range | 0–15 mm (15–30 mm optional) |
| Round Specimen Clamping Range | Φ13–Φ40 mm |
| Compression Test Space | 550 mm |
| Piston Stroke | 150 mm |
| Accuracy Class | ±1% of full scale (per ISO 7500-1) |
| Bending Support Span | 600 mm |
| Column Spacing | 570 mm |
| Motor Power | 3 kW |
| Main Frame Dimensions (W×D×H) | 950 × 630 × 2265 mm |
| Hydraulic Power Unit Dimensions (W×D×H) | 620 × 480 × 1135 mm |
| Weight | 2600 kg |
Overview
The YANRUN WEW-600D is a microcomputer-controlled electro-hydraulic servo universal testing machine engineered for high-precision static mechanical property evaluation of metallic, polymeric, composite, and ceramic materials under tension, compression, bending, and shear loading conditions. Based on the principle of closed-loop hydraulic force control with real-time displacement and load feedback, the system employs a dual-cylinder symmetrical loading architecture and a high-stiffness two-column frame to ensure minimal deflection and superior load path alignment. Compliant with ISO 7500-1 (Class 1 accuracy), ASTM E4, and GB/T 228.1–2021 standards, the WEW-600D delivers traceable, reproducible results suitable for QC laboratories, R&D centers, and third-party certification facilities operating under GLP or ISO/IEC 17025 frameworks.
Key Features
- Electro-hydraulic servo actuation with digital PID control algorithm ensures stable load ramping, dwell control, and cyclic loading fidelity up to 10 Hz bandwidth.
- High-rigidity dual-column frame (570 mm column spacing) with precision-ground guide rails and preloaded ball-screw-driven crosshead movement minimizes parasitic bending moments during axial loading.
- Multi-range hydraulic load cell calibrated to ±0.5% of reading over 10–100% of full scale (600 kN), certified per ISO 376 requirements.
- Integrated piston stroke limit detection and emergency overload cutoff (programmable at 105% FS) enhance operational safety in compliance with ISO 12100.
- Modular jaw system supports rapid tooling change: standard round specimen grips (Φ13–Φ40 mm), flat specimen clamps (0–15 mm thickness, optional 15–30 mm), compression platens with self-aligning spherical seat, and three-point bending fixtures.
- Dedicated oil source features low-noise vane pump, pressure-compensated flow control valve, and thermostatically regulated reservoir (±2 °C stability) to maintain viscosity consistency across ambient temperature fluctuations.
Sample Compatibility & Compliance
The WEW-600D accommodates standardized test specimens per ISO 6892-1 (tensile), ISO 37 (rubber), ISO 14125 (composites), and ASTM D695 (compression). Its 600 mm tensile opening and 550 mm compression height support full-length ASTM E8 bars and ISO 37 dumbbell specimens without sectioning. All mechanical interfaces—including grip serrations, platen surface finish (Ra ≤ 0.8 µm), and alignment tolerances (<0.1 mm deviation over 100 mm)—are verified against ISO 7500-1 Annex B. The system meets CE Machinery Directive 2006/42/EC essential health and safety requirements and includes documented risk assessment per EN ISO 12100.
Software & Data Management
The embedded YANRUN TestMaster™ software (v4.2) runs on a factory-integrated Lenovo industrial PC with Windows 10 IoT Enterprise and HP LaserJet MFP printing capability. It provides real-time load-displacement curve plotting, multi-step test programming (predefined ASTM/ISO templates), automatic yield point detection (0.2% offset method), and modulus calculation per ISO 527-2. Raw data export is supported in CSV, XML, and PDF formats with embedded metadata (operator ID, timestamp, calibration certificate ID). Audit trail functionality complies with FDA 21 CFR Part 11 requirements, including electronic signatures, user-level access control, and immutable event logs for all parameter modifications and test executions.
Applications
- Mechanical qualification of structural steel grades (Q345, S355JR) per EN 10025, including ultimate tensile strength (Rm), yield strength (ReL), elongation (A5), and reduction of area (Z).
- Compression testing of concrete cylinders (150 × 300 mm) and cementitious composites per ASTM C39 and ISO 4012.
- Bending performance evaluation of fiber-reinforced polymer (FRP) laminates using three-point loading per ASTM D7264.
- Quality conformance verification of fasteners (bolts, nuts) per ISO 898-1 and ASTM F606.
- Research-grade cyclic fatigue pre-conditioning (low-cycle regime) prior to fracture toughness testing per ASTM E647.
FAQ
What standards does the WEW-600D comply with for force measurement accuracy?
It conforms to ISO 7500-1 Class 1 requirements, with verified linearity, hysteresis, and repeatability errors within ±1% of full scale.
Can the system perform closed-loop displacement control during compression tests?
Yes—displacement-controlled modes are fully supported via the servo valve’s position feedback loop, enabling strain-rate-sensitive protocols such as ASTM D695.
Is the software validated for regulated environments (e.g., pharmaceutical or aerospace QA)?
TestMaster™ includes 21 CFR Part 11-compliant audit trails, electronic signature workflows, and IQ/OQ documentation packages available upon request.
What maintenance intervals are recommended for the hydraulic power unit?
Oil filtration and viscosity verification every 500 operational hours; full hydraulic fluid replacement every 2,000 hours or biannually, whichever occurs first.
Are calibration certificates provided with the system?
Yes—a UKAS-accredited third-party calibration certificate (covering load cell, displacement transducer, and pressure sensor) is supplied at commissioning, traceable to NIM China and NIST.
