Tuofeng TFW-28 Microcomputer-Controlled Universal Testing Machine

Overview

The Tuofeng TFW-28 Microcomputer-Controlled Universal Testing Machine is an electromechanical force-testing system engineered for precision mechanical property characterization of metallic, polymeric, composite, and ceramic materials. Based on the principle of controlled axial loading via high-fidelity servo-driven displacement actuation, the system applies calibrated tensile, compressive, flexural, shear, tear, peel, and puncture forces while synchronously capturing load, displacement, and strain data at sub-millisecond intervals. Its dual-column rigid frame architecture ensures minimal deflection under load, supporting high reproducibility across repeated tests—critical for quality control laboratories, R&D departments, and accredited testing facilities operating under GLP or ISO/IEC 17025 frameworks.

Key Features

• 0.5-class accuracy per GB/T 16491–2008 and JJG 475–2008, validated traceable to national metrological standards
• Full-scale force resolution of 1 part in ±500,000 without range switching—enabling seamless transition from low-force polymer creep testing to high-load metal yield evaluation
• Imported servo motor coupled with worm-gear reduction and preloaded ball screw transmission ensures smooth, backlash-free motion control and long-term positional stability
• Dual-speed crosshead movement (fast positioning + fine adjustment) with jog capability improves throughput during multi-specimen batch testing
• Integrated triple-layer safety protocol: electronic travel limits, hardware emergency stop circuitry, and software-enforced overload cutoff at 110% of rated capacity
• Modular fixture interface compatible with ASTM E8, ISO 6892-1, GB/T 228.1, and other standard-compliant grips—including wedge-action, pneumatic, hydraulic, and custom-designed solutions

Sample Compatibility & Compliance

The TFW-28 accommodates specimens ranging from thin films (≥0.05 mm thickness) to structural steel coupons (up to 30 mm thick), with adjustable test width (standard 600 mm, extendable upon request) and vertical stroke (800 mm, field-upgradable). It supports standardized test methods across major international regulatory and industrial frameworks: ASTM D638/D790/D1435/D903, ISO 527/178/37/1133, JIS K7113/K7127, DIN 53455/53504, BS EN 10002-1, and GB/T 1040/1041/1447/1449. The machine complies with GB/T 16491–2008 for manufacturing specifications and JJG 475–2008 for periodic verification. Its mechanical design meets CE machinery directive requirements (2006/42/EC) when configured with EU-certified safety components.

Software & Data Management

The Windows-based TFW-TestSuite v4.x software provides ISO/IEC 17025-aligned audit trail functionality, including user login authentication, parameter change logging, and electronic signature support for test report finalization. It supports six real-time control modes: constant rate of extension (CRE), constant rate of loading (CRL), constant stress, constant strain, hold-to-target, and cyclic loading profiles. Raw data acquisition occurs at ≥1 kHz sampling rate, with simultaneous display of up to four synchronized curves (e.g., stress–strain, load–time, displacement–time, load–extension). Units are freely convertible between SI, imperial, and legacy systems (e.g., MPa/kpsi, mm/in, N/lbf). All test results—including ultimate tensile strength, yield point (0.2% offset), Young’s modulus, elongation at break, compressive modulus, and peel adhesion energy—are auto-calculated using user-input cross-sectional area and gauge length. Reports comply with FDA 21 CFR Part 11 requirements when deployed with optional digital certificate integration.

Applications

This system serves as a primary mechanical characterization tool in sectors requiring strict adherence to material performance thresholds: aerospace component qualification (e.g., titanium alloy fasteners per AMS 2300), automotive polymer validation (PP, PA66, TPU per ISO 179/180), medical device polymer testing (ISO 5832-12, USP / extractables screening substrates), construction material certification (rebar, grout, fiber-reinforced concrete per ASTM A615/A1034), and battery separator tensile integrity assessment (per UL 1642 Annex B). Its versatility extends to academic research involving shape-memory alloys, hydrogels, and bioresorbable scaffolds where precise low-force (500%) measurement fidelity is essential.

FAQ

Does the TFW-28 support third-party calibration certificates?
Yes—factory calibration is performed using NIST-traceable deadweight standards, and certified calibration reports compliant with ISO/IEC 17025 are available upon request.

Can the system be integrated into a LIMS or MES environment?
Yes—the software includes ODBC-compliant database export and RESTful API endpoints for bidirectional data exchange with laboratory information management systems.

Is extensometer compatibility included by default?
The base configuration includes mounting interfaces for clip-on and non-contact extensometers; the sensor itself is an optional add-on selected based on strain range and resolution requirements.

What documentation is provided for regulatory submissions?
A complete Design Qualification (DQ), Installation Qualification (IQ), and Operational Qualification (OQ) package—including risk assessment (FMEA), test protocols, and raw validation data—is supplied for GxP-regulated environments.

Is remote diagnostics and software update support available?
Yes—via secure TLS-encrypted remote access with customer consent; all firmware and application updates are delivered free of charge for the product’s service life.