Tuofeng TFW-71 Servo-Controlled Universal Testing Machine

Overview

The Tuofeng TFW-71 Servo-Controlled Universal Testing Machine is an electromechanical static testing system engineered for high-precision mechanical property characterization of metallic, polymeric, composite, and ceramic materials. Based on closed-loop servo control architecture and compliant with ISO 7500-1 Class 0.5 accuracy requirements, the system delivers traceable force measurement across its full dynamic range—from 0.2% to 100% of selected capacity (5 kN to 200 kN). Its dual-column rigid frame, preloaded ball-screw actuation, and high-resolution optical encoder-based displacement feedback ensure minimal compliance error and exceptional repeatability in tensile, compression, flexure, shear, peel, tear, and puncture tests. Designed for laboratory and industrial quality assurance environments, the TFW-71 supports standardized mechanical testing protocols required by global regulatory and certification frameworks.

Key Features

• Class 0.5 force accuracy per ISO 7500-1 and GB/T 16491–2008, verified through third-party calibration certificates
• Single-range, high-resolution load cell with 1:500,000 internal resolution—no range switching or associated hysteresis
• Imported AC servo motor coupled to a low-backlash worm-gear reducer for smooth, low-noise, high-torque motion control
• Precision-ground, preloaded ball screw with anti-backlash nut assembly ensures axial stiffness >1.2 × 10⁶ N/mm
• Programmable test speed from 0.001 mm/min to 500 mm/min, enabling quasi-static to high-rate mechanical response capture
• Dual-mode displacement measurement: optical encoder (standard) + optional clip-on or non-contact extensometer (ASTM E83 Class B1/B2 compliant)
• Integrated safety architecture: hardware-limit switches, emergency stop circuit, real-time overload cutoff (>110% FS), and automatic return-to-start
• Motorized crosshead with dual-speed (fast/slow) positioning and jog functionality for precise specimen alignment

Sample Compatibility & Compliance

The TFW-71 accommodates specimens ranging from thin polymer films (≥0.05 mm thick) to structural steel coupons (up to 40 mm thick), with customizable grips—including wedge-action, pneumatic, hydraulic, and custom-fabricated fixtures—for ASTM D638 Type I–V, ISO 527-2, ISO 6892-1, and GB/T 228.1 standard geometries. It meets mechanical testing requirements defined in ASTM E4 (load verification), ASTM E8/E21 (tension/compression of metals), ASTM D695 (compressive properties of plastics), ISO 178 (flexural properties), ISO 1133 (melt flow index correlation), and JIS K7113 (tensile testing of plastics). Full documentation supports GLP/GMP audit readiness, including instrument qualification (IQ/OQ/PQ) templates and traceable calibration records aligned with ISO/IEC 17025.

Software & Data Management

The Windows-based TFW-TestSuite software provides multi-modal test control—including load-, displacement-, and time-controlled profiles—with real-time synchronization of up to four data channels (force, displacement, strain, time). It supports multilingual UI (English, Simplified/Traditional Chinese), customizable unit systems (N/kN/lbf, mm/in, MPa/psi), and dynamic curve overlay for comparative analysis of up to 32 test records. All raw data are stored in ASCII CSV format with metadata headers (operator ID, timestamp, standard reference, environmental conditions). Audit-trail functionality logs all user actions—including parameter edits, test aborts, and report generation—in accordance with FDA 21 CFR Part 11 requirements when configured with electronic signatures. Software updates are provided free of charge for the instrument’s operational lifetime.

Applications

The TFW-71 serves as a primary mechanical testing platform across R&D, QC, and certification labs. In aerospace, it validates tensile strength and elongation of Ti-6Al-4V sheet and carbon-fiber prepreg laminates under ASTM D3039. In automotive, it characterizes weld joint integrity per ISO 14272 and rubber bushing compression set per ISO 813. In medical device manufacturing, it verifies tensile yield of PEEK spinal cages (ISO 13485-compliant workflows) and burst pressure of balloon catheters (ASTM F1998). In construction materials testing, it determines compressive strength of concrete cylinders (ASTM C39) and flexural modulus of fiber-reinforced cement boards (ASTM C78). Academic users leverage its open API for custom algorithm integration in constitutive modeling and digital twin validation.

FAQ

What international standards does the TFW-71 support out-of-the-box?
The system includes preconfigured test methods for ASTM E8, ASTM D638, ISO 6892-1, ISO 527-2, GB/T 228.1, and JIS Z2241, with full parameter validation reports available upon request.
Can the TFW-71 be integrated into an existing LIMS or MES environment?
Yes—the TFW-TestSuite supports OPC UA and TCP/IP-based data export, enabling direct connectivity to LabWare LIMS, Thermo Fisher SampleManager, or Siemens Opcenter Execution.
Is third-party calibration certification included with purchase?
Each unit ships with a factory-issued ISO/IEC 17025-accredited calibration certificate covering force, displacement, and speed axes, valid for 12 months from shipment date.
What is the warranty coverage and service response time?
Tuofeng provides a 24-month comprehensive warranty covering parts and labor, with on-site technical support available within 72 business hours in major industrial zones across APAC, EMEA, and North America.
Does the system meet FDA 21 CFR Part 11 requirements for electronic records?
When deployed with password-protected user roles, electronic signature modules, and audit-trail logging enabled, the TFW-TestSuite satisfies Part 11 criteria for record integrity and accountability.