Tuofeng TFW-26 Dual-Column Microcomputer-Controlled Electronic Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TFW-26 |
| Instrument Type | Electronic Universal Testing Machine |
| Max Test Load | 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 (no range switching, constant resolution) |
| Drive System | Imported servo motor with worm gear reducer |
| Lead Screw | High-precision ball screw |
| Effective Test Width | 600 mm (customizable) |
| Tensile Stroke | 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 |
| Strain Accuracy | ±0.005% of reading |
| Safety Protection | Electronic limit switches, emergency stop button, overload protection (10% over capacity) |
| Crosshead Control | Dual-speed (fast/slow) automatic adjustment with jog function |
| Return Function | Automatic or manual high-speed return to initial position |
| Overload Protection | Auto-shutdown at >110% of rated load |
| Fixture Customization | Application-specific grips available |
| Dimensions (W×D×H) | 1000 × 700 × 2000 mm |
| Power Supply | 220 V, 1.0 kW |
| Approx. Weight | 450 kg |
Overview
The Tuofeng TFW-26 is a dual-column, microcomputer-controlled electronic universal testing machine engineered for precision mechanical property characterization of metallic, polymeric, composite, and ceramic materials. Based on the principle of controlled axial force application and high-fidelity displacement/strain measurement, it delivers traceable, repeatable, and standards-compliant mechanical data across tensile, compression, bending, shear, tear, peel, and puncture test modes. Its modular architecture supports interchangeable load cells, extensometers, environmental chambers, and custom fixtures—enabling adaptation to evolving R&D, QC, and regulatory validation requirements. Designed and manufactured in Shanghai, the TFW-26 complies with ISO 7500-1:2018 (static calibration of force-measuring systems), ASTM E4 (verification of force-measuring instruments), and GB/T 16491–2008 (Chinese national standard for electronic universal testing machines). It also satisfies metrological verification per JJG 475–2008, ensuring suitability for GLP-compliant laboratories and GMP-regulated production environments.
Key Features
- Dual-column rigid frame with high-stiffness cast-iron base and reinforced crosshead structure for minimal deflection under dynamic loading
- Imported servo motor coupled with precision worm gear reducer and preloaded ball screw drive—ensuring smooth, backlash-free motion and long-term positional stability
- 0.5-class accuracy certified load cell with ±0.005% full-scale linearity and thermal drift compensation
- Constant-resolution force acquisition at 1/±500,000 full-scale codes—eliminating range-switching artifacts and enabling seamless transition from low-force polymer testing to high-load metal evaluation
- Optical encoder-based displacement measurement with ±0.005% reading accuracy and real-time synchronization to force data
- Integrated safety triad: programmable electronic limits, hardware emergency stop, and mechanical overload cutoff at 110% of rated capacity (20 kN)
- Intelligent crosshead control with dual-speed (fast/slow) auto-adjustment and jog-enabled fine positioning for precise specimen alignment
- Modular software platform supporting multi-channel data acquisition (force, displacement, strain, temperature) with configurable sampling rates up to 1 kHz
Sample Compatibility & Compliance
The TFW-26 accommodates specimens ranging from thin metallic foils (0.05 mm) to structural composites (up to 600 mm wide × 800 mm gage length). Standard configurations include wedge-action tensile grips, compression platens, three/four-point bending fixtures, and pneumatic peel clamps—all machined from hardened steel and surface-treated for wear resistance. Optional accessories include video extensometers, environmental chambers (−70°C to +300°C), and hydraulic wedge grips for high-strength alloys. The system supports full compliance with international test standards including ASTM D638 (tensile plastics), ASTM E8/E21 (metallic tensile/compression), ISO 527, ISO 604, ISO 178, GB/T 228.1, JIS Z2241, and BS EN 10002-1. All test reports include metadata traceable to calibration certificates, operator ID, environmental conditions, and instrument firmware version—meeting audit requirements under FDA 21 CFR Part 11 and ISO/IEC 17025.
Software & Data Management
Tuofeng’s proprietary Windows-based testing software (v5.2) provides ISO/IEC 17025-aligned data integrity controls: user-level access permissions, electronic signatures, audit trails for all parameter changes, and immutable raw data archiving. It supports seven control modes—constant rate of extension (CRE), constant rate of loading (CRL), constant stress, constant strain, load hold, displacement hold, and cyclic loading—with programmable ramp/hold segments. Real-time visualization includes synchronized force–displacement, stress–strain, and time-series plots; curve overlays for comparative analysis; and automated calculation of modulus, yield point (0.2% offset), ultimate tensile strength (UTS), elongation at break, Poisson’s ratio, and fracture toughness indices. Export formats include CSV, XML, PDF, and proprietary .TFS binary files compatible with third-party statistical packages (e.g., Minitab, JMP). Data backups are encrypted and timestamped, with optional network storage integration via SMB/CIFS protocols.
Applications
The TFW-26 serves as a primary mechanical characterization tool across diverse sectors: aerospace (alloy sheet tensile testing per AMS 2355), automotive (rubber bushing compression, brake pad shear), medical device manufacturing (suture tensile strength per ISO 10993-12), construction materials (rebar yield verification per ASTM A615), electronics (flex circuit peel adhesion per IPC-TM-650), and academic research (nanocomposite modulus mapping). Its 20 kN capacity and sub-micron displacement resolution make it equally suitable for evaluating brittle ceramics (fracture energy via SEPB tests) and viscoelastic hydrogels (creep-recovery under ISO 13314). In quality assurance labs, it enables batch release testing against internal specifications aligned with IATF 16949 and ISO 9001 clause 8.5.1.
FAQ
What standards does the TFW-26 support out-of-the-box?
Preconfigured test methods include ASTM D638, ASTM E8, ISO 527, GB/T 228.1, and JIS Z2241—with additional templates available upon request.
Can the system be integrated into an existing LIMS or MES environment?
Yes—via OPC UA or RESTful API interfaces; validated integration packages are available for LabVantage, Thermo Fisher SampleManager, and Siemens Opcenter.
Is the software compliant with FDA 21 CFR Part 11 requirements?
Yes—audit trail logging, electronic signature enforcement, and role-based access control are enabled by default and documented in the system validation package.
What is the warranty coverage and service response time?
Tuofeng provides 24-month comprehensive warranty with remote diagnostics and onsite support within 72 business hours in Tier-1 cities across North America, EU, and APAC.
Are calibration certificates provided with the instrument?
All units ship with NIST-traceable factory calibration certificates for force, displacement, and strain channels—valid for 12 months under normal operating conditions.
