Tuofeng TFW-116 Microcomputer-Controlled Electronic Universal Tensile Testing Machine

Overview

The Tuofeng TFW-116 is a microprocessor-controlled electronic universal tensile testing machine engineered for high-precision mechanical property evaluation of metallic, polymeric, composite, and elastomeric materials. Based on servo-motor-driven electromechanical actuation and high-resolution load cell transduction, the system operates on the principle of controlled uniaxial force application under programmable displacement or load control. Its robust architecture supports static mechanical characterization—including tensile, compression, flexure, shear, tear, peel, and puncture—across R&D laboratories, quality control departments, and third-party certification bodies. Designed in full compliance with international metrological and performance standards, the TFW-116 delivers traceable, repeatable, and auditable test data suitable for regulatory submissions and interlaboratory comparisons.

Key Features

• Precision load measurement using a high-stability load cell calibrated to ±0.5% of full scale, with effective force range spanning 0.2%–100% FS—enabling accurate low-load testing (down to 1 kg) without range switching.
• High-rigidity dual-column frame with preloaded ball-screw transmission and imported servo motor coupled to a precision worm-gear reducer—ensuring smooth, backlash-free motion and long-term mechanical stability.
• Adjustable crosshead travel up to 1000 mm, with dual-speed motorized positioning (fast/slow modes) and programmable return-to-start functionality post-test.
• Integrated safety system including electronic limit switches, emergency stop circuitry, and automatic overload protection (>110% of rated capacity), compliant with IEC 61800-5-1 functional safety requirements.
• Optical encoder-based displacement measurement with 0.001 mm resolution and ±0.005% accuracy; optional extensometer integration (contact or non-contact) supports strain-controlled protocols per ASTM E83 or ISO 9513.
• Modular fixture interface accommodating standardized grips (pneumatic, wedge, vise-type), custom adapters, and environmental chambers (optional).

Sample Compatibility & Compliance

The TFW-116 accommodates specimens ranging from thin films (≥0.05 mm thickness) to structural steel coupons (up to 60 mm width × 25 mm thickness), with standard test widths configurable up to 600 mm. It supports specimen geometries conforming to ASTM D638 (tensile bars), ASTM D790 (flexural beams), ISO 527-2 (plastics), ISO 37 (vulcanized rubber), and GB/T 228.1 (metallic materials). All hardware and firmware comply with national and international verification standards: GB/T 16491-2008 (Chinese specification for electronic universal testers), JJG 475-2008 (verification regulation), ASTM E4 (load calibration), ISO 7500-1 (static calibration), and DIN 51221 (accuracy classification). The system meets Class 0.5 accuracy per ISO 7500-1 and supports GLP/GMP audit trails when configured with time-stamped, user-authenticated data logging.

Software & Data Management

The Windows-based control and analysis software provides multi-mode operation—including load control, displacement control, strain control, and hold/relax protocols—with fully customizable ramp rates, dwell times, and trigger conditions. Real-time visualization includes synchronized force–displacement, stress–strain, force–time, and extension–time plots, with overlay capability for comparative analysis across batches or material grades. Units are freely convertible between SI, imperial, and metric systems (e.g., N/kN/lbf, mm/inch, MPa/psi). Automated parameter extraction includes ultimate tensile strength, yield strength (0.2% offset), Young’s modulus, elongation at break, compressive strength, tear strength, peel adhesion, and secant modulus. Data export supports CSV, Excel, PDF, and XML formats; all raw data files include embedded metadata (operator ID, timestamp, calibration certificate ID, environmental conditions). Software conforms to FDA 21 CFR Part 11 requirements when enabled with electronic signatures, audit trail logging, and role-based access control.

Applications

The TFW-116 serves as a primary mechanical characterization platform in diverse industrial and academic settings: validation of fastener tensile strength and proof load per ISO 898-1 and ASTM F606; evaluation of polymer weld integrity in automotive trim components; qualification of aerospace-grade composites per Boeing BMS 7-127; QC screening of wire rope, cable, and textile tensile performance; powder metallurgy green strength and sintered density correlation studies; and biocompatibility testing of orthopedic implant fixation systems. Its versatility extends to accredited testing laboratories performing ISO/IEC 17025-compliant services for construction materials (rebar, grout, mortar), medical device packaging (ASTM F88 peel), and battery separator mechanical integrity (ASTM D882).

FAQ

What standards does the TFW-116 support for calibration and verification?

It complies with GB/T 16491-2008, JJG 475-2008, ASTM E4, ISO 7500-1, and DIN 51221 for force calibration and system verification.

Can the system perform closed-loop strain control?

Yes—when equipped with an ASTM E83/ISO 9513-compliant extensometer, the software enables true strain-controlled testing with real-time feedback.

Is the software validated for regulated environments?

Upon configuration with audit trail, electronic signatures, and secure user roles, it satisfies FDA 21 CFR Part 11 and EU Annex 11 requirements.

What is the minimum resolvable force value at full 200 kN capacity?

With 500,000 internal count resolution and no range switching, the system resolves down to 0.4 N (0.0004 kN) across the entire span.

Are custom fixtures and environmental accessories available?

Yes—Tuofeng offers application-specific grips, hydraulic wedge clamps, high-temperature furnaces (−70°C to +300°C), and humidity chambers compatible with ISO 291 conditioning protocols.