YANRUN WEW-600B Electro-Hydraulic Servo Universal Testing Machine
| Brand | YANRUN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-Made) |
| Model | WEW-600B |
| Instrument Type | Electro-Hydraulic Servo Testing Machine |
| Max. Test Load | 600 kN |
| Load Measurement Range | 20–600 kN |
| Load Indication Accuracy | ±0.5% FS |
| Displacement Resolution | 0.01 mm |
| Closed-Loop Control Modes | Constant Load / Constant Deformation / Constant Displacement (0.4–100% FS) |
| Control Accuracy | ±1.0% FS (setpoint <10% FS) |
| Strain Rate Control Accuracy | ±2.0% (rate <0.05% FS) |
| Max. Piston Speed | 80 mm/min |
| Max. Tensile Test Space | 600 mm |
| Max. Compressive Test Space | 550 mm |
| Flat Specimen Clamp Thickness Range | 0–15 mm |
| Round Specimen Clamp Diameter Range | φ13–φ40 mm |
| Compression Platen Size | 200 × 200 mm |
| Bend Support Roller Spacing | 350 mm |
| Roller Width | 140 mm |
| Support Pin Diameter | 50 mm |
| Piston Stroke | 200 mm |
| Gripping Method | Hydraulic Clamping |
| Sensor & Amplifier | Integrated Oil-Pressure Load Cell with PCI-Mounted Programmable Amplifier (Auto-Zero & Auto-Calibration) |
Overview
The YANRUN WEW-600B Electro-Hydraulic Servo Universal Testing Machine is a precision-engineered static mechanical testing system designed for high-fidelity tensile, compression, bending, and shear characterization of metallic, polymeric, composite, and ceramic materials in industrial quality control laboratories and academic research environments. Built upon a rigid four-column load frame with dual hydraulic actuators and closed-loop electro-hydraulic servo control architecture, the WEW-600B operates under ISO 7500-1 Class 1 calibration compliance and meets key requirements of ASTM E4, ASTM E8/E8M, ISO 6892-1, and GB/T 228.1–2021 for uniaxial mechanical property evaluation. Its 600 kN nominal capacity supports structural component validation, weld integrity assessment, and raw material certification across aerospace, automotive, construction, and energy sectors. The machine integrates real-time force-displacement-deformation synchronization via synchronized analog-to-digital acquisition channels, enabling traceable, repeatable, and auditable test execution.
Key Features
- Rigid, pre-stressed four-post steel frame with optimized column spacing and reinforced base plate to minimize deflection during high-load testing
- Electro-hydraulic servo actuation system delivering precise piston velocity control from 0.005 to 80 mm/min, with dynamic response time <20 ms for rapid load ramping
- High-stability oil-pressure load cell calibrated to ±0.5% full-scale accuracy, mounted directly in the load train to eliminate parasitic bending moments
- Integrated PCI-based programmable signal conditioning amplifier with automatic zero-tracking, gain calibration, and thermal drift compensation
- Hydraulically actuated wedge-type grips featuring self-aligning jaw geometry and pressure-regulated clamping force (adjustable up to 35 MPa) for uniform stress distribution across flat (0–15 mm) and round (φ13–φ40 mm) specimens
- Dual-range extensometer interface supporting clip-on and non-contact strain measurement options for modulus and yield point determination
- Modular platen configuration including 200 × 200 mm compression platens and adjustable three-point bending fixtures (350 mm support span, 140 mm roller width, 50 mm support pin diameter)
Sample Compatibility & Compliance
The WEW-600B accommodates standardized specimen geometries per ASTM E8, ISO 6892-1, and GB/T 228.1, including flat tensile coupons (up to 15 mm thick), round bars (13–40 mm diameter), cast iron cylinders, concrete prisms, and sandwich-core composites. Its 600 mm maximum tensile travel and 550 mm compression height enable full-stroke testing of long-section components and large-dimension civil engineering specimens. All force, displacement, and deformation signals are acquired at ≥1 kHz sampling rate and digitally filtered using configurable low-pass Bessel filters to suppress hydraulic noise. System-level compliance includes adherence to ISO 17025 documentation requirements for calibration traceability, GLP-aligned audit trails for test parameter changes, and hardware-enforced interlocks for emergency stop, over-travel, and overload protection.
Software & Data Management
Control and analysis are executed via YANRUN’s proprietary Windows-based TestMaster Pro software suite, compatible with Windows 10/11 (64-bit). The application supports fully customizable test templates with multi-step loading profiles (ramp-hold-relax, cyclic fatigue, creep), real-time graphical overlays of stress-strain, load-displacement, and time-history curves, and automated calculation of yield strength (Rp0.2), ultimate tensile strength (Rm), elongation at break (A%), reduction in area (Z%), modulus of elasticity (E), and bending strength (σf). Raw data export is available in CSV, XML, and ASTM E1435-compliant ASCII formats. Optional FDA 21 CFR Part 11 compliance package provides electronic signature workflows, user role-based access control, and immutable audit logs for regulated pharmaceutical or medical device material qualification.
Applications
- Mechanical validation of structural steels, aluminum alloys, and titanium grades per ASTM A370 and EN 10002
- Quality assurance of welded joints and heat-affected zones in pressure vessel fabrication
- Compression testing of concrete, mortar, and geopolymer composites under ASTM C39/C109 protocols
- Bending performance evaluation of fiber-reinforced polymer (FRP) laminates and sandwich panels used in wind turbine blades
- Creep and stress relaxation studies on thermoplastics and elastomers at elevated temperatures (when paired with environmental chamber)
- Educational use in university materials science labs for hands-on instruction in solid mechanics and failure analysis
FAQ
What standards does the WEW-600B comply with for force measurement accuracy?
The system conforms to ISO 7500-1 Class 1 requirements, with load cell calibration traceable to NIM (National Institute of Metrology, China) and verified annually per internal SOPs aligned with ISO/IEC 17025.
Can the machine perform cyclic or fatigue testing?
While primarily configured for static tests, the electro-hydraulic servo architecture supports low-cycle fatigue (LCF) protocols up to 5 Hz with optional high-frequency valve upgrades and dedicated waveform generation modules.
Is third-party calibration support available?
Yes — YANRUN maintains partnerships with CNAS-accredited calibration laboratories in Shanghai, Guangzhou, and Beijing to provide on-site or depot-based verification services with certified calibration certificates.
What maintenance intervals are recommended for hydraulic system integrity?
Oil filtration and system flush every 1,500 operating hours; seal inspection and replacement every 5,000 hours; annual verification of servo valve hysteresis and linearity per ISO 10791-6 Annex D.
Does the software support integration with LIMS or MES platforms?
TestMaster Pro offers OPC UA and RESTful API interfaces for bidirectional data exchange with laboratory information management systems (LIMS) and manufacturing execution systems (MES), including automated result posting and sample ID synchronization.
