Tuofeng TFW-267 Microcomputer-Controlled Electronic Universal Testing Machine

Overview

The Tuofeng TFW-267 Microcomputer-Controlled Electronic Universal Testing Machine is an ISO/IEC 17025-aligned static mechanical testing system engineered for high-fidelity force-displacement characterization of structural and functional materials. Based on the principle of controlled uniaxial loading under closed-loop servo-hydraulic or electromechanical actuation—here implemented via a precision servo-motor-driven ball-screw transmission—the instrument delivers traceable, repeatable measurements across tension, compression, bending, shear, peel, tear, and puncture modes. Its architecture complies with GB/T 16491-2008 (equivalent to ISO 7500-1:2018 for static calibration) and JJG 475-2008 (national metrological verification regulation), ensuring metrological validity for accredited laboratories. Designed for integration into QC/QA workflows and R&D validation protocols, the TFW-267 supports full compliance with ASTM E4, ASTM E8/E8M, ISO 6892-1, ISO 178, ISO 148-1, and GB/T 228.1, enabling standardized reporting for regulatory submissions, supplier qualification, and inter-laboratory comparison.

Key Features

• 0.5-class accuracy per GB/T 16491-2008—certified force measurement uncertainty ≤ ±0.5% of reading across 0.2–100% of full scale (20 kN)
• High-resolution load cell with 1:500,000 internal A/D resolution and no range switching—ensuring consistent sensitivity from sub-newton to maximum load
• Imported industrial servo motor coupled to a preloaded ground ball screw—delivering smooth, backlash-free motion and long-term positional repeatability
• Dual-speed crosshead control (fast jog + precise fine positioning) with programmable return-to-start functionality post-test
• Integrated safety triad: electronic end-limit detection, hardware emergency stop circuit, and software-enforced overload cutoff at 110% of rated capacity
• Modular fixture interface supporting ASTM-standard grips (pneumatic, wedge, vise, peel, shear), custom tooling, and environmental chamber integration (optional)

Sample Compatibility & Compliance

The TFW-267 accommodates specimens ranging from thin polymer films (≥0.05 mm thick) to structural metal coupons (up to 25 mm thickness, 600 mm width), composites, elastomers, textiles, adhesives, and biomedical scaffolds. Standard configurations include flat-tensile, compression platens, three/four-point bend fixtures, and peel test jigs. All mechanical and electrical subsystems meet CE marking requirements for machinery safety (2006/42/EC) and electromagnetic compatibility (2014/30/EU). For regulated environments—including pharmaceutical excipient testing, medical device component validation, and aerospace fastener certification—the system supports optional 21 CFR Part 11-compliant software modules with user access control, electronic signatures, and immutable audit trails aligned with GLP/GMP Annex 11 expectations.

Software & Data Management

Tuofeng’s proprietary WinTest Pro software operates natively on Windows 10/11 (64-bit) and provides full IEC 62304-compliant embedded control logic. It enables six primary test modes: constant rate of extension (CRE), constant rate of loading (CRL), constant stress, constant strain, load hold, and displacement hold. Real-time visualization includes synchronized plots of load vs. time, load vs. displacement, stress vs. strain, and displacement vs. time—with up to four curves overlaid for comparative analysis. Calculated outputs include tensile strength (R_m), yield strength (R_p0.2), Young’s modulus (E), elongation at break (A₅₀), tear strength (kN/m), peel adhesion (N/mm), and compression modulus—all auto-derived using user-input cross-sectional area and gauge length. Data export conforms to ASTM E1434 and ISO/IEC 17025 clause 7.8.2: results are saved in timestamped .csv/.xml formats; PDF reports include operator ID, calibration certificate IDs, environmental conditions, and raw curve metadata.

Applications

This system serves as a core mechanical characterization platform across multiple sectors: in wire & cable manufacturing, it validates tensile integrity of insulated conductors per IEC 60811; in automotive Tier-1 supply chains, it verifies weld joint strength in aluminum chassis components per SAE J2445; in packaging R&D, it quantifies seal peel resistance of laminated pouches per ASTM F88; in orthopedic biomaterials labs, it measures flexural modulus of PEEK spinal cages per ISO 178; and in construction materials QA, it determines compressive strength of fiber-reinforced concrete per ASTM C39. Its modularity allows seamless transition between ASTM D638-type plastic bars and ISO 37 rubber dumbbells without recalibration—reducing method transfer risk and increasing lab throughput.

FAQ

What standards does the TFW-267 support out-of-the-box?
It natively implements test methods from GB/T 228.1, ASTM E8, ISO 6892-1, ISO 178, and ASTM D638 via preloaded templates—no third-party software licensing required.
Can the system be integrated into a LIMS or MES environment?
Yes—WinTest Pro provides OPC UA and RESTful API interfaces for bidirectional data exchange with LabVantage, Thermo Fisher SampleManager, and Siemens Opcenter.
Is calibration traceability provided with the instrument?
Each unit ships with a factory calibration certificate traceable to NIM (China National Institute of Metrology) and includes documented uncertainty budgets per ISO/IEC 17025.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; extended service plans include on-site preventive maintenance and remote diagnostics with <48-hour SLA for critical issues.
Does the software meet FDA 21 CFR Part 11 requirements?
The base software meets ALCOA+ principles; optional Part 11 module adds role-based access, electronic signatures, and audit trail encryption compliant with FDA guidance dated March 2022.