Tuofeng TFW-41 Dual-Column Computer-Controlled Universal Testing Machine

Overview

The Tuofeng TFW-41 is a dual-column, electromechanical universal testing machine engineered for high-precision mechanical property characterization of engineering materials across R&D, quality control, and regulatory compliance environments. Based on servo-controlled load application and high-resolution digital feedback architecture, it implements quasi-static uniaxial force-displacement measurement in accordance with the fundamental principles of Hooke’s law and standardized stress–strain analysis. Its rigid frame, preloaded precision ball screws, and low-backlash gearmotor drive system ensure minimal deflection, thermal drift, and hysteresis—critical for repeatable modulus determination, yield point detection, and fracture energy quantification. Designed to meet ISO 7500-1 Class 0.5 accuracy requirements, the TFW-41 delivers traceable force measurement from 0.2% to 100% of full scale without range switching, enabling seamless transition between low-force elastomer testing and high-load metallic tensile evaluation.

Key Features

• Dual-column structural design with reinforced steel frame and vibration-damped base for enhanced stability during high-speed or high-load testing
• Imported AC servo motor coupled with worm-gear reduction and ground-precision ball screw transmission for smooth, backlash-free crosshead motion
• High-resolution optical encoder-based displacement measurement and optional extensometer integration (clip-on or non-contact) for ASTM E83 Class B or ISO 9513 Class 1 strain resolution
• Dual-speed automatic crosshead adjustment (fast jog + fine positioning) with programmable return-to-start functionality post-test
• Comprehensive hardware safety: electronic limit switches, emergency stop circuitry, overload protection (110% FS cutoff), and software-enforced parameter constraints
• Modular fixture interface supporting standardized grips (pneumatic, wedge, vise), bending jigs, peel fixtures, and custom tooling per ISO 204, ASTM D1876, and EN 14410

Sample Compatibility & Compliance

The TFW-41 accommodates specimens ranging from thin polymer films (≥0.05 mm thickness) to structural metal coupons (up to 200 kN ultimate load). It supports standardized test geometries per ASTM D638 (tensile plastics), ASTM D790 (flexural rigidity), ISO 6892-1 (metal tensile), ISO 179 (Izod impact preconditioning), EN ISO 1421 (rubber tear), and GB/T 528 (vulcanized rubber). All mechanical and metrological performance complies with national and international verification protocols—including JJG 475-2008 (China National Metrology Verification Regulation) and GB/T 16491-2008 (Electronic Universal Testing Machines Specification)—and satisfies audit readiness for GLP, GMP, and ISO/IEC 17025-accredited laboratories. Data integrity conforms to FDA 21 CFR Part 11 requirements when operated with validated software configurations.

Software & Data Management

The Windows-based Tuofeng TestSuite™ v5.x provides full test lifecycle control—from method definition and real-time curve monitoring to statistical reporting and archival. Users configure test modes including load-controlled, displacement-controlled, strain-controlled, hold (load/position), and cyclic loading profiles. Real-time display includes synchronized force–time, stress–strain, displacement–time, and custom derivative plots (e.g., tangent modulus, secant modulus). Software supports multilingual UI (English, Simplified/Traditional Chinese), SI/imperial unit conversion, and automated calculation of ASTM/ISO-defined parameters: tensile strength, yield strength (0.2% offset), elongation at break, Young’s modulus, flexural modulus, tear strength, peel adhesion, and bond strength. Raw data exports to CSV, XML, or PDF; batch comparisons enable overlay analysis with statistical summary (mean, SD, min/max). Audit trails, user-level permissions, and electronic signature support are available in validated deployment mode.

Applications

• Material qualification in footwear component manufacturing (outsoles, midsoles, uppers, adhesives)
• Mechanical validation of thermoplastic elastomers (TPE), ethylene-propylene diene monomer (EPDM), polyurethane (PU), and silicone rubbers
• Quality assurance of woven/nonwoven textiles, leather substitutes, and composite laminates used in athletic and safety footwear
• R&D of novel foam formulations, hydrogel-based cushioning systems, and 3D-printed lattice structures
• Regulatory submission testing per ISO 20344 (PPE footwear), ASTM F2413 (safety toe), and EN ISO 20345 (protective footwear)
• Failure analysis of bonded interfaces (e.g., sole–upper delamination) via peel and shear testing per ASTM D903 and ISO 8510-2

FAQ

Does the TFW-41 comply with ISO/IEC 17025 calibration requirements?
Yes—the system is supplied with factory calibration certificates traceable to NIM (National Institute of Metrology, China) and supports third-party accredited recalibration per ISO/IEC 17025 Annex A.2.
Can I integrate an extensometer for modulus measurement on elastomeric soles?
Yes—both clip-on axial extensometers (ASTM E83 Class B) and video-based non-contact systems are supported via analog/digital I/O and synchronized acquisition.
Is the software compliant with FDA 21 CFR Part 11 for regulated labs?
When deployed with role-based access control, electronic signatures, and audit trail logging enabled, the validated version of TestSuite™ meets core Part 11 requirements for electronic records and signatures.
What is the standard warranty and service coverage?
Tuofeng provides a 24-month parts-and-labor warranty, lifetime technical support, and free software updates—including future modules for fatigue, creep, and dynamic testing extensions.
Are test reports exportable in formats accepted by certification bodies like SGS or BV?
Yes—reports are exportable as PDF/A-1b (archival standard), CSV (for statistical reanalysis), and XML (for LIMS integration), all containing full metadata: operator ID, timestamp, environmental conditions, calibration status, and raw waveform data.