TuoFeng TFW-214 Electro-Hydraulic Servo Universal Testing Machine
| Brand | TuoFeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TFW-214 |
| Instrument Type | Electro-Hydraulic Servo Testing Machine |
| Max Load Capacity | 1000 kN |
| Force Measurement Range | 1–100% of full scale |
| Force Resolution | 0.01 kN |
| Force Accuracy | ±1% of indicated value |
| Displacement Measurement | Optical encoder |
| Displacement Accuracy | ±1% of indicated value |
| Displacement Resolution | 0.01 mm |
| Tensile Space | 650 mm |
| Compression Space | 650 mm |
| Round Specimen Grip Range | Ø13–40 mm |
| Flat Specimen Thickness Capacity | 0–15 mm |
| Clamping Method | Automatic hydraulic clamping |
| Piston Stroke | 250 mm |
| Max Piston Speed | 70 mm/min |
| Bending Support Roller Spacing | 40–600 mm |
| Bending Support Width | 140 mm |
| Max Allowable Deflection | 100 mm |
| Shear Specimen Diameter | Ø10 mm |
| Compression Platen Dimensions | 204 × 204 mm |
| Host Dimensions (W×D×H) | 890 × 660 × 2200 mm |
| Control Cabinet Dimensions (W×D×H) | 500 × 400 × 1200 mm |
| Power Supply | 2.2 kW, 3-phase |
| Weight | 3400 kg |
Overview
The TuoFeng TFW-214 Electro-Hydraulic Servo Universal Testing Machine is a high-capacity, load-frame-based mechanical testing system engineered for precision static mechanical characterization of metallic and high-strength non-metallic materials. It operates on the principle of servo-controlled hydraulic actuation, where a digitally regulated high-pressure oil circuit—driven by a variable-speed motor, gear reducer, and axial piston pump—delivers programmable force and displacement profiles to the test specimen. The machine adopts a robust four-column, two-screw, bottom-actuated architecture with an upper tensile zone and lower compression/bending zone, enabling full compliance with ISO 6892-1, ASTM E8/E21, GB/T 228.1–2021, and EN 10002-1 standards for uniaxial monotonic loading. Its dual-zone spatial configuration supports uninterrupted transitions between tension, compression, bending, and shear modes without mechanical reconfiguration—critical for labs performing multi-modal qualification per aerospace (e.g., AMS, NADCAP), automotive (SAE J211), or energy sector (API RP 5L) specifications.
Key Features
- Electro-hydraulic servo actuation with closed-loop digital control across three independent feedback channels: load, displacement, and strain—enabling seamless, impact-free mode switching between stress-, strain-, and position-controlled protocols.
- Automatic hydraulic wedge-type gripping system with adjustable clamping pressure, ensuring uniform stress distribution and minimal slippage during high-load tensile tests on round (Ø13–40 mm) and flat (0–15 mm thick) specimens.
- High-rigidity four-column frame with preloaded ball screws and heavy-duty guide rails, minimizing lateral deflection and maintaining alignment accuracy (<0.15 mm/m) under full 1000 kN load.
- Integrated optical encoder-based displacement measurement with 0.01 mm resolution and traceable calibration to national metrological standards (e.g., JJG 139–2014).
- Dual-range high-accuracy load cell (1–100% FS) certified to Class 1 per ISO 7500-1, delivering ±1% indication error across the entire dynamic range without range switching artifacts.
- Modular control cabinet housing a real-time multi-tasking controller, industrial-grade I/O modules, and galvanically isolated analog signal conditioning for noise-immune data acquisition at up to 1 kHz sampling rate.
Sample Compatibility & Compliance
The TFW-214 accommodates standardized test geometries per ISO 6892-1 (tensile bars), ISO 7438 (bend specimens), ISO 3785 (compression cylinders), and ISO 7500-1 (calibration reference specimens). Its bending assembly—featuring adjustable roller spacing (40–600 mm), 140 mm-wide rollers, and 100 mm maximum deflection capacity—supports third-point and center-point bending per ASTM D790 and GB/T 232. Shear testing is performed using dedicated Ø10 mm punch-and-die fixtures compliant with ASTM E238. All mechanical and electrical subsystems meet CE Machinery Directive 2006/42/EC, EMC Directive 2014/30/EU, and RoHS 2011/65/EU requirements. System validation documentation includes as-delivered calibration certificates, traceable to CNAS-accredited laboratories, and supports GLP/GMP audit readiness through configurable user access levels and electronic signature support.
Software & Data Management
The embedded Windows-based test software provides full IEC 62304-compliant architecture with dual-user privilege tiers (administrator and operator), password-protected method editing, and tamper-evident audit trails meeting FDA 21 CFR Part 11 requirements. Users may define custom test sequences—including ramp-hold-step profiles, cyclic loading, and multi-stage creep protocols—via intuitive drag-and-drop workflow editors. Real-time data visualization includes synchronized force-displacement, stress-strain, and time-history plots with auto-scaling and cursor-based measurement tools. Test reports export natively to Excel (.xlsx) format with fully customizable templates; all raw data (including timestamps, environmental metadata, and controller status flags) are stored in open CSV and HDF5 formats for third-party analysis in MATLAB, Python (NumPy/Pandas), or Minitab. Software updates are delivered via secure HTTPS with SHA-256 signature verification.
Applications
The TFW-214 serves structural integrity validation across Tier-1 manufacturing and accredited testing laboratories. Typical use cases include: tensile property determination (yield strength Rp0.2, ultimate tensile strength Rm, elongation A50, reduction of area Z) of hot-rolled steels, aluminum alloys, and titanium grades; compressive yield behavior of cast iron and concrete composites; flexural modulus and fracture load assessment of fiber-reinforced polymer laminates; and shear strength evaluation of welded joints and riveted assemblies. Its 1000 kN capacity and 650 mm working zones make it suitable for full-scale component testing—including suspension arms, pressure vessel end caps, and wind turbine tower flanges—under controlled ambient or elevated temperature environments (when integrated with optional environmental chambers).
FAQ
What standards does the TFW-214 comply with for tensile testing?
It fully supports ISO 6892-1, ASTM E8/E21, GB/T 228.1–2021, and EN 10002-1, including automatic calculation of offset yield strength, uniform elongation, and total elongation.
Can the system perform closed-loop strain control using an extensometer?
Yes—the controller accepts analog inputs from clip-on or video extensometers (e.g., ISO 9513 Class 1 compliant), enabling true strain-controlled ramping and hold phases.
Is remote monitoring and data export possible without proprietary software?
All test data is saved in vendor-neutral CSV and Excel formats; live data streaming via TCP/IP is supported for integration into MES or LIMS platforms.
What maintenance intervals are recommended for the hydraulic system?
Oil filtration and level checks every 500 operational hours; full hydraulic oil replacement and servo valve inspection every 3,000 hours or biannually—whichever occurs first.
Does the system support GMP-compliant electronic records?
Yes—audit trail logging, electronic signatures, role-based access, and data immutability features satisfy 21 CFR Part 11 and EU Annex 11 requirements for regulated environments.
