Tuofeng TFW-160 Microcomputer-Controlled Electronic Universal Testing Machine

Overview

The Tuofeng TFW-160 Microcomputer-Controlled Electronic Universal Testing Machine is a high-precision electromechanical system engineered for static mechanical property characterization of metallic, polymeric, ceramic, composite, and elastomeric materials. It operates on the principle of controlled displacement actuation via a servo-driven ball-screw mechanism, enabling precise application of axial tensile, compressive, flexural, shear, tear, peel, and puncture loads. The machine conforms to international metrological and performance standards—including GB/T 16491–2008 (Chinese national standard for electronic UTM), JJG 475–2008 (verification regulation), ASTM E4 (load verification), ASTM E8/E21 (tensile testing of metals), ASTM D638/D790 (plastics), ISO 6892-1 (metallic tensile), and ISO 178 (flexural properties)—ensuring traceability, repeatability, and regulatory acceptability across R&D, QA/QC, and third-party certification environments.

Key Features

• 0.5-class accuracy per GB/T 16491–2008, with force resolution of 1 part in ±500,000 full-scale load—maintained uniformly across the entire 0.2–100% measurement range without range switching.
• Imported high-torque servo motor coupled with a backlash-free worm-gear reducer and preloaded recirculating ball screw, delivering smooth, low-noise motion and exceptional positional fidelity.
• Dual-speed crosshead control (fast/slow modes) with jog functionality and programmable return-to-start behavior—enabling rapid setup and consistent post-test repositioning.
• Integrated multi-level safety architecture: hardware-based dual electronic limit switches, front-panel emergency stop, real-time overload detection (shutdown at 110% of rated capacity), and software-enforced operational boundaries.
• Modular fixture interface supporting standardized and custom-designed grips—including wedge-action tensile jaws, compression platens, three/four-point bend fixtures, pneumatic peel clamps, and puncture anvils—each calibrated for alignment and parallelism per ASTM E1012.
• Real-time synchronization of force, displacement, and optional strain data at ≥1 kHz sampling rate, ensuring high-fidelity capture of transient mechanical responses such as yield onset, necking propagation, and fracture initiation.

Sample Compatibility & Compliance

The TFW-160 accommodates specimens ranging from thin films (<0.1 mm) to structural steel coupons (up to 60 mm thick), with test widths configurable up to 600 mm and stroke extendable beyond 800 mm for elongation-sensitive applications. Its mechanical and software architecture supports compliance with GLP and GMP-aligned workflows: audit trails for method parameters, user access levels (admin/operator/guest), electronic signatures (per FDA 21 CFR Part 11 when deployed with validated software configuration), and calibration certificate traceability to NIM (National Institute of Metrology, China) or ISO/IEC 17025-accredited labs. All test reports include metadata stamps (operator ID, timestamp, environmental conditions if logged), instrument ID, and calibration due dates—facilitating ISO/IEC 17025 accreditation audits.

Software & Data Management

The Windows-based Tuofeng TestSuite v5.2 provides ISO/IEC 17025-compliant test execution and reporting. It supports multiple control modes—including load-controlled, displacement-controlled, strain-controlled, and hold (constant load/displacement/time) protocols—with fully programmable ramp rates, dwell durations, and conditional branching. Real-time plotting includes synchronized force–displacement, stress–strain, force–time, displacement–time, and extension–time curves; overlay comparison of up to 16 datasets is enabled for batch consistency analysis. Units are freely convertible (N/kN/lbf, mm/in, MPa/psi), and language support includes English, Simplified Chinese, Traditional Chinese, and German. Data export complies with ASTM E1434 (ASCII tab-delimited) and ISO 8601 (timestamp formatting); raw data files retain full-resolution sensor traces for forensic reanalysis. Software updates are delivered via secure HTTPS channel with version-controlled release notes and impact assessments.

Applications

This system serves as a primary mechanical characterization platform in materials science laboratories, quality assurance departments, and contract testing facilities. Typical use cases include: tensile modulus and yield strength determination of aerospace aluminum alloys (per AMS 4027); peel adhesion evaluation of pressure-sensitive tapes (ASTM D903); flexural rigidity assessment of carbon-fiber laminates (ISO 14125); compression testing of biomedical hydrogels (ISO 13314); tear resistance of elastomeric seals (ISO 34-1); and bond strength validation of solder joints in electronics packaging (IPC-TM-650 2.4.1). In academic settings, it supports graduate-level instruction in solid mechanics, constitutive modeling, and failure analysis—particularly where reproducible boundary conditions and metrologically defensible data are prerequisites.

FAQ

What standards does the TFW-160 comply with for calibration and verification?
It meets GB/T 16491–2008 (design and performance), JJG 475–2008 (periodic verification), ASTM E4 (force calibration), and ISO 7500-1 (static uniaxial testing machines). Calibration certificates reference NIM-traceable deadweight standards.
Can the system perform closed-loop strain control using an extensometer?
Yes—when equipped with a clip-on or non-contact video extensometer (optional), the controller executes real-time strain feedback with ≤0.005% FS accuracy and supports ASTM E8/E21-compliant strain-controlled ramp-hold protocols.
Is the software compliant with FDA 21 CFR Part 11 requirements?
Out-of-the-box functionality includes electronic signatures, audit trail logging, and role-based access control. Full Part 11 compliance requires site-specific validation documentation and IT infrastructure alignment (e.g., domain authentication, encrypted backups).
What is the maximum specimen thickness supported in compression testing?
With standard platens and 600 mm test width, compression height is limited by stroke (800 mm) and buckling stability—typically accommodating specimens up to 60 mm thick under ASTM C39/C109 guidelines.
How is mechanical alignment verified during installation and maintenance?
Alignment is verified using ASTM E1012-compliant procedures: optical collimation for crosshead parallelism, dial indicator mapping of platen flatness (≤0.02 mm deviation), and load axis eccentricity check (<±0.5% of applied load). A full alignment report is included with commissioning.