Tuofeng TFW-177 Microcomputer-Controlled Electronic Universal Testing Machine

Overview

The Tuofeng TFW-177 Microcomputer-Controlled Electronic Universal Testing Machine is a high-precision electromechanical system engineered for static mechanical characterization of metallic, polymeric, ceramic, composite, and elastomeric materials. Based on closed-loop servo-controlled force and displacement actuation, the system implements standardized uniaxial tensile, compression, flexural, shear, tear, peel, and puncture testing per ASTM E4, ASTM E8/E8M, ISO 6892-1, ISO 7500-1, GB/T 228.1, and other internationally recognized mechanical testing protocols. Its rigid C-frame architecture, coupled with preloaded ball screws and high-resolution optical encoders, ensures structural stability under dynamic loading and sub-micron positional repeatability across the full stroke range. The machine operates within a certified 0.5 accuracy class per GB/T 16491–2008 and JJG 475–2008, meeting metrological traceability requirements for GLP-compliant laboratories and ISO/IEC 17025-accredited testing facilities.

Key Features

• 0.5-class force measurement accuracy with ±0.005% reading uncertainty over 0.2–100% of full scale (177 kN nominal capacity)
• Single-range, high-resolution load cell digitization: 1 part in ±500,000 full-scale counts—no range switching, no resolution loss at low loads
• Imported servo drive system with worm-gear reduction delivers smooth, low-noise motion control and precise speed regulation from 0.001 to 500 mm/min
• Preloaded high-precision ball screw assembly ensures axial stiffness >1.2 × 10⁶ N/mm and minimal backlash (<2 µm)
• Dual-mode crosshead positioning: fast coarse adjustment (up to 200 mm/min) and fine jog control (0.01 mm increments) for rapid specimen alignment
• Integrated safety suite including dual electronic end-stop sensors, hardware emergency stop circuit, and automatic overload cutoff at 110% of rated capacity
• Modular extensometry support: compatibility with contact-type axial extensometers (ASTM E83 Class B-1), video extensometers (ISO 9513 Class 1), and large-deformation transducers for strain measurement up to 1000%

Sample Compatibility & Compliance

The TFW-177 accommodates specimens ranging from thin films (≥0.05 mm thickness) to structural steel coupons (up to 60 mm width × 30 mm thickness), with customizable grips—including wedge-action, pneumatic, hydraulic, and specialized fixtures for wires, textiles, adhesives, and biomedical sutures. All test configurations adhere to force calibration and verification procedures defined in ISO 7500-1 and ASTM E4. Software-generated test reports include metadata required for regulatory submissions: operator ID, environmental conditions (optional sensor integration), calibration certificate IDs, and audit-trail timestamps. The system supports 21 CFR Part 11-compliant user access controls and electronic signature workflows when deployed with validated software modules.

Software & Data Management

The Windows-based Tuofeng TestSuite v5.x provides ISO/IEC 17025-aligned test automation and data integrity features. It supports multi-mode control (load-, displacement-, or strain-rate-controlled), real-time plotting of up to four synchronized axes (e.g., stress–strain, load–time, extension–time), and automated parameter extraction—including yield strength (Rp0.2), ultimate tensile strength (Rm), Young’s modulus (E), elongation at break (A%), and secant modulus. Raw data is stored in vendor-neutral CSV and XML formats; all calculations comply with ASTM E112 and ISO 6892-1 Annex A. The software maintains an immutable audit trail of method changes, calibration events, and result modifications, satisfying FDA and EU GMP documentation requirements. Language localization includes English, Simplified Chinese, Traditional Chinese, German, French, and Japanese.

Applications

This system serves as a primary mechanical testing platform in R&D labs and QA/QC departments across aerospace (e.g., titanium alloy tensile validation per AMS 2300), automotive (composite crash-energy absorption per SAE J2995), medical device manufacturing (suture tensile strength per ISO 10993-12), rubber and polymer development (cure-state-dependent modulus mapping), and construction materials certification (rebar ductility per EN 10080). Its flexibility extends to advanced use cases such as cyclic loading fatigue pre-screening, creep compliance analysis (with optional dwell control), and adhesion strength quantification via T-peel and 90° peel protocols (ASTM D1876, ASTM D903).

FAQ

What international standards does the TFW-177 support out-of-the-box?
The system is preconfigured for ASTM E8/E8M, ISO 6892-1, GB/T 228.1, DIN 50125, JIS Z 2241, and BS EN ISO 7438—test methods are selectable via software wizard with automatic parameter presets.
Can the system be integrated into a LIMS or enterprise QA database?
Yes—via OPC UA and RESTful API interfaces, raw test data, summary statistics, and PDF reports can be exported directly to LabVantage, Thermo Fisher SampleManager, or custom SQL-based QA systems.
Is third-party calibration and certification available?
Tuofeng provides factory calibration traceable to NIM (China National Institute of Metrology); optional UKAS-accredited calibration and ISO/IEC 17025 scope extension are available upon request.
What is the warranty and service coverage?
Standard 24-month parts-and-labor warranty; extended service contracts include remote diagnostics, annual performance verification, and priority on-site response within 72 business hours.
Does the system meet FDA 21 CFR Part 11 requirements for electronic records?
When configured with role-based user accounts, electronic signatures, and audit-log archiving enabled, the software meets baseline Part 11 criteria; full validation support packages (IQ/OQ/PQ documentation) are available separately.