Tuofeng TFW-65 Servo-Controlled Universal Tensile Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TFW-65 |
| Price Range | USD 7,000 – 14,000 |
| Instrument Type | Electromechanical Universal Testing Machine |
| Maximum Test Load | 200 kN |
| Force Measurement Range | 0.2%–100% of Full Scale (FS) |
| Force Accuracy | ±0.5% of reading |
| Test Stroke | 1000 mm |
| Displacement Resolution | 0.001 mm |
| Control System | Closed-loop Servo Motor with Precision Ball Screw Drive |
| Effective Test Width | 600 mm (customizable) |
| Speed Range | 0.001–500 mm/min (infinitely variable) |
| Displacement Measurement | Optical Encoder |
| Displacement Accuracy | ±0.005% of reading |
| Deformation Measurement | Optional Extensometer or Large-Deformation Gauge |
| Safety Protection | Electronic Limit Switches, Emergency Stop, Overload Protection (110% FS), Dual-Speed Crosshead Return |
| Compliance | GB/T 16491–2008, JJG 475–2008, ASTM E4, ASTM E8, ISO 6892-1, ISO 7500-1, DIN 51221, JIS Z2241, BS EN 10002-1 |
Overview
The Tuofeng TFW-65 Servo-Controlled Universal Tensile Testing Machine is an electromechanical materials testing system engineered for high-precision static mechanical characterization under controlled loading conditions. It operates on a closed-loop servo control architecture, integrating a high-torque imported servo motor, precision planetary gearbox, and ground-accuracy ball screw transmission to deliver exceptional force linearity, positional repeatability, and dynamic response across its full operational range. Designed in accordance with international metrological standards—including ISO 7500-1 (Class 0.5 accuracy), ASTM E4 (verification of force-measuring instruments), and GB/T 16491–2008—the TFW-65 ensures traceable, auditable, and reproducible mechanical property data. Its modular frame accommodates standardized test configurations per tensile, compression, flexure, shear, peel, tear, and puncture protocols, supporting both routine quality control and advanced research-grade material behavior analysis.
Key Features
- High-fidelity load measurement via dual-range, temperature-compensated load cell with ±0.5% FS accuracy and 1/500,000 internal resolution—enabling reliable detection of subtle yield transitions and post-yield softening.
- True closed-loop displacement and strain control enabled by optical encoder feedback (±0.005% reading accuracy) and optional extensometry (ASTM E83 Class B2 compliance).
- Robust mechanical architecture featuring hardened steel crossheads, preloaded linear guide rails, and adjustable column spacing (up to 600 mm wide) for large-section specimens and multi-specimen fixtures.
- Dual-speed crosshead drive (fast return + fine positioning) with programmable acceleration/deceleration profiles to minimize inertial artifacts during high-speed ramp tests.
- Integrated safety suite including hardware-based emergency stop, electronic overtravel limits, real-time overload cutoff (110% FS threshold), and automatic homing sequence upon test completion.
- Modular power delivery: 3.0 kW servo drive optimized for sustained 200 kN loading at low speeds (<1 mm/min) while maintaining thermal stability and torque consistency.
Sample Compatibility & Compliance
The TFW-65 supports specimen geometries ranging from miniature metallic coupons (ASTM E8 sub-size) to full-thickness polymer composites (ISO 527-2 Type 1BA), rubber sheets (ISO 37), geotextiles (ASTM D4595), and laminated adhesives (ASTM D1002). Standardized grips include wedge-action pneumatic clamps (for metals), serrated face platens (for concrete/ceramics), and roller-type peel fixtures (for flexible packaging). All mechanical configurations adhere to dimensional tolerances specified in ISO 2041 and ASTM E1012 for alignment verification. The system is validated for conformance with GLP/GMP documentation requirements, supporting audit-ready calibration logs, operator ID tagging, and electronic signature workflows compliant with FDA 21 CFR Part 11 when paired with optional secure software modules.
Software & Data Management
The Windows-based Tuofeng TestSuite v4.2 provides ISO/IEC 17025-aligned test method definition, execution, and reporting. It supports multiple control modes—including load-rate, displacement-rate, stress-ramp, strain-hold, and creep-recovery—with real-time switching between active control variables. Data acquisition occurs at up to 1 kHz sampling rate, synchronized with analog inputs from external sensors (e.g., video extensometers, acoustic emission units). Curve visualization includes overlay-capable stress–strain, load–displacement, and time-series plots with auto-scaling, derivative calculation (modulus slope), and ASTM/ISO-compliant yield point identification (0.2% offset, tangent, or maximum curvature methods). Raw data exports to CSV, XML, or proprietary .TTS binary format; reports are generated in PDF/XLSX with embedded metadata (calibration dates, environmental conditions, operator credentials). Software architecture permits third-party API integration for MES/LIMS connectivity and supports firmware-level encryption for data integrity assurance.
Applications
The TFW-65 serves as a primary mechanical characterization platform across regulated and industrial sectors. In aerospace manufacturing, it validates tensile ductility and compressive strength of Ti-6Al-4V sheet stock per AMS 2369 and carbon-fiber prepreg laminates per ASTM D3039. Within automotive R&D, it quantifies weld joint integrity (ISO 14272), elastomer hysteresis (ISO 4664-1), and battery electrode coating adhesion (ASTM D3359). For construction materials, it performs flexural modulus determination on fiber-reinforced concrete (ASTM C78) and tensile testing of high-strength rebar (ASTM A615). In medical device development, it assesses suture tensile strength (ISO 10555-1), balloon burst pressure (ISO 10555-4), and hydrogel elongation at break (ISO 13485 Annex C). Academic users leverage its open scripting interface for custom constitutive model validation and multi-axial loading sequence emulation.
FAQ
What international standards does the TFW-65 support out-of-the-box?
The system ships with preconfigured test methods for ASTM E8/E9/E21, ISO 6892-1/7500-1/527-2, GB/T 228.1–2021, and JIS Z2241, with automated parameter calculation aligned to clause-specific acceptance criteria.
Can the TFW-65 be integrated into an existing laboratory information management system (LIMS)?
Yes—via OPC UA or RESTful API interfaces, enabling bidirectional data exchange of test parameters, results, and instrument status without manual export/import steps.
Is deformation measurement included as standard equipment?
A high-resolution optical encoder is standard for crosshead displacement; contact extensometers (ASTM E83 Class B2) and non-contact video extensometers are available as calibrated options.
What maintenance intervals are recommended for long-term accuracy retention?
Load cell recalibration every 12 months (or per 2000 test cycles), ball screw lubrication every 6 months, and annual mechanical alignment verification using ASTM E1012 methodology.
Does the system support multi-step cyclic testing protocols?
Yes—TestSuite v4.2 enables user-defined step sequences combining tension-compression loops, dwell periods, ramp-to-load holds, and conditional branching based on real-time measured thresholds.
