Tuofeng TFW-29 Dual-Column Electromechanical Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Electromechanical Universal Testing Machine |
| Model | TFW-29 |
| Force Capacity | 20 kN |
| Accuracy Class | 0.5 |
| Effective Force Range | 0.2–100% of Full Scale |
| Force Measurement Accuracy | ±0.005% of reading |
| Load Cell Resolution | 1 part in ±500,000 full-scale codes (single-range, no auto-ranging) |
| Drive System | Imported servo motor with precision worm-gear reducer |
| Lead Screw | High-accuracy preloaded ball screw |
| Effective Test Width | 600 mm (customizable) |
| Max Travel | 800 mm (extendable) |
| Speed Range | 0.001–500 mm/min (infinitely variable) |
| Displacement Measurement | Optical encoder |
| Displacement Accuracy | ±0.005% of reading |
| Strain Measurement | Optional extensometer or large-deformation sensor |
| Safety Features | Electronic limit switches, emergency stop, overload protection (110% FS), dual-speed motorized crosshead control |
| Software | Windows-based, multi-language (EN/CN/TC), ASTM/ISO/GB-compliant test method library, real-time stress–strain, load–displacement, and load–time plotting, automatic parameter calculation per ISO 6892-1, ASTM E8/E9/E21, GB/T 228.1–2021, GLP audit trail support |
Overview
The Tuofeng TFW-29 is a dual-column electromechanical universal testing machine engineered for high-reproducibility mechanical characterization of metals, polymers, composites, elastomers, textiles, and advanced ceramics. It operates on the principle of controlled axial force application via a closed-loop servo-driven ball-screw actuation system, enabling precise displacement- or load-controlled testing under static and quasi-static conditions. Designed to meet international metrological and regulatory requirements—including ISO 7500-1:2018 (static calibration), ASTM E4 (force verification), and JJG 475–2008 (Chinese verification regulation)—the TFW-29 delivers Class 0.5 accuracy across its full 20 kN capacity range. Its rigid frame architecture, thermally stable load cell, and high-resolution digital signal acquisition ensure measurement integrity over extended test durations and repeated thermal cycles typical in QC labs and R&D environments.
Key Features
- Dual-column steel frame with reinforced base and crosshead, optimized for torsional rigidity and minimal deflection during high-load compression tests.
- Imported high-torque servo motor coupled with a backlash-free worm-gear reducer and preloaded recirculating ball screw—ensuring smooth, silent operation and sub-micron positioning repeatability.
- Single-range, high-resolution load cell (1:500,000 internal resolution) with temperature-compensated strain gauge technology; no manual range switching required.
- Optical encoder-based displacement measurement system with ±0.005% reading accuracy and real-time synchronization to load data at up to 1 kHz sampling rate.
- Configurable strain measurement options: clip-on extensometers (ASTM E83-compliant) for modulus and yield determination, or non-contact video extensometry for brittle or high-elongation specimens.
- Integrated safety suite: programmable electronic travel limits, hardware-triggered emergency stop, mechanical overload cutoff (110% FS), and dual-speed motorized crosshead return (fast/slow modes with position memory).
Sample Compatibility & Compliance
The TFW-29 accommodates standard and custom specimens per ISO 6892-1 (tensile), ISO 14126 (compressive strength of composites), ASTM D695 (rigid plastics), ASTM D790 (flexural properties), ASTM D638/D412 (elastomers), and GB/T 228.1–2021 (Chinese metallic materials tensile standard). With a 600 mm effective test width and 800 mm vertical stroke, it supports flat, round, tubular, and irregular geometries—including ASTM E8 dog-bone coupons, ISO 527 bars, and JIS Z2241 plates. All test protocols are preconfigured in software to align with ISO/IEC 17025 documentation requirements, including traceable calibration certificates, uncertainty budgets, and instrument qualification records (IQ/OQ/PQ templates available upon request). The system complies with GLP and GMP environments through configurable user access levels, electronic signatures, and 21 CFR Part 11–ready audit trails.
Software & Data Management
Tuofeng’s proprietary TESTMaster™ v5.2 software runs natively on Windows 10/11 and supports fully customizable test sequences—including load-controlled creep, displacement-controlled relaxation, cyclic loading, and hold-step profiles. It provides real-time overlay of up to eight simultaneous curves (e.g., true stress–true strain, engineering stress–strain, load–time, crosshead displacement–time), with automatic identification of yield point (0.2% offset), ultimate tensile strength (UTS), fracture elongation, Young’s modulus, and Poisson’s ratio. Data export is compliant with ASTM E1432 (standard data format for mechanical testing) and supports CSV, XML, PDF, and encrypted SQLite databases. All test files include embedded metadata: operator ID, environmental conditions (optional sensor input), calibration status, and instrument firmware version. Software updates are delivered remotely with version-controlled release notes and validation documentation.
Applications
The TFW-29 serves as a primary mechanical testing platform in quality control laboratories across aerospace (e.g., titanium alloy sheet tensile verification per AMS 2369), automotive (composite bumper beam crush testing per SAE J290), medical device manufacturing (polymer suture tensile strength per ISO 10993-12), construction materials (rebar yield strength per ASTM A615), and battery component development (separator tensile integrity under thermal stress). Its modular fixture interface enables rapid reconfiguration for ASTM D1876 (T-peel), ASTM D6252 (adhesive shear), ISO 11339 (tear resistance), and custom fixtures for wire, fiber, and thin-film testing. Universities utilize it for graduate-level mechanics of materials instruction, with built-in pedagogical tools for stress transformation visualization and constitutive model fitting.
FAQ
What international standards does the TFW-29 support out-of-the-box?
The system includes pre-loaded test methods for ASTM E8/E9/E21, ISO 6892-1/14126/7500-1, GB/T 228.1–2021, DIN 50145, and JIS Z2241—with editable parameters to accommodate lab-specific deviations.
Can the TFW-29 be integrated into an existing LIMS or MES environment?
Yes—via OPC UA server interface or RESTful API, supporting bidirectional data exchange of test plans, raw data streams, and certified reports in structured JSON or XML.
Is third-party calibration certification included with delivery?
Each unit ships with a factory-issued ISO/IEC 17025-accredited calibration certificate covering force, displacement, and speed axes, traceable to NIM (China) and NIST (USA) reference standards.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; on-site technical support within 72 business hours in Tier-1 cities across EU, NA, and APAC regions; remote diagnostics enabled via secure TLS-encrypted connection.
Does the software meet FDA 21 CFR Part 11 requirements for electronic records?
Yes—TESTMaster™ v5.2 implements role-based authentication, biometric or token-based electronic signatures, immutable audit logs, and automated backup retention policies aligned with Part 11 Subpart B.
