Tuofeng TFW-87 Microcomputer-Controlled Electromechanical Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Electromechanical Universal Testing Machine |
| Model | TFW-87 |
| Force Capacity Range | 5–200 kN (configurable by model variant) |
| Accuracy Class | ISO 7500-1 / ASTM E4 Grade 0.5 |
| Compliance | GB/T 16491-2008, JJG 475-2008, ASTM E4, ISO 7500-1, EN 10002-2, DIN 51221 |
| Control System | Windows-based closed-loop servo control with real-time data acquisition |
| Drive System | Imported AC servo motor + precision planetary gear reducer |
| Load Frame | Dual-column, rigid welded steel construction |
| Lead Screw | Preloaded high-precision ground ball screw |
| Effective Test Width | 400–600 mm (customizable) |
| Max Travel | 800 mm (extendable) |
| Speed Range | 0.001–500 mm/min (infinitely variable, closed-loop controlled) |
| Load Measurement | High-stability load cell, 0.2–100% FS range, resolution 1/500,000 full scale, accuracy ±0.005% of reading |
| Displacement Measurement | Optical encoder, accuracy ±0.005% of reading |
| Strain Measurement | Optional clip-on extensometer or large-deformation video extensometer, accuracy ±0.005% of reading |
| Safety Systems | Dual electronic limit switches, emergency stop button, overload protection (110% FS), automatic return-to-start post-test |
| Software | Multi-language GUI (English, Simplified/Traditional Chinese), compliant with FDA 21 CFR Part 11 audit trail requirements (optional configuration), GLP/GMP-ready reporting |
Overview
The Tuofeng TFW-87 Microcomputer-Controlled Electromechanical Universal Testing Machine is a precision-engineered dual-column static testing system designed for quantitative mechanical characterization of metallic, polymeric, composite, and ceramic materials under uniaxial loading conditions. Operating on the principle of closed-loop electromechanical force and displacement control, the system delivers high reproducibility in tensile, compression, flexural, shear, tear, peel, and puncture testing per internationally harmonized standards. Its modular architecture supports seamless integration of advanced transducers—including extensometers, environmental chambers, and digital image correlation (DIC) systems—enabling full-field strain mapping and multi-axis extension capabilities. The machine complies with ISO 7500-1 Class 0.5 accuracy requirements and meets the structural and metrological criteria defined in GB/T 16491-2008 and JJG 475-2008, ensuring traceability to national metrology institutes.
Key Features
- Rigid dual-column load frame constructed from high-tensile steel with vibration-damped base and precision-machined crosshead guides for minimal deflection during high-load testing.
- Imported AC servo drive system coupled with a preloaded ground ball screw and planetary gear reducer, delivering smooth motion control across the full speed range (0.001–500 mm/min) with <0.1% speed stability.
- High-resolution load measurement using temperature-compensated S-type or cantilever load cells, offering 1/500,000 internal resolution and linearity error ≤±0.005% of reading across 0.2–100% of full scale.
- Real-time displacement feedback via quadrature optical encoder mounted directly on the lead screw, eliminating belt or gear backlash errors and ensuring position accuracy of ±0.005% of reading.
- Integrated safety architecture including dual independent electronic limit switches, hardware-triggered emergency stop circuitry, and software-enforced overload cutoff at 110% of rated capacity.
- Motorized crosshead with dual-speed (fast/slow) actuation and programmable return-to-origin function, reducing cycle time and operator intervention.
Sample Compatibility & Compliance
The TFW-87 accommodates specimens ranging from thin films (≥0.05 mm thickness) to structural beams (up to 200 mm width × 800 mm height), with customizable grip systems—including wedge-action, pneumatic, hydraulic, and custom-fabricated fixtures—for metals, elastomers, textiles, adhesives, composites, and biomedical polymers. It supports standardized test methods across ASTM D638, D790, D143, D695, ISO 6892-1, ISO 178, ISO 604, EN 10002-1, GB/T 228.1, and JIS Z 2241. Calibration certificates are issued per ISO/IEC 17025-accredited procedures, and optional verification includes third-party certification to ISO 9001 and ISO/IEC 17025 quality management systems. The system is compatible with GLP and GMP environments when configured with 21 CFR Part 11-compliant software modules, including electronic signatures, audit trails, and role-based access control.
Software & Data Management
Tuofeng’s proprietary TESTMaster™ software operates natively on Windows 10/11 64-bit platforms and provides full compliance-ready test execution and reporting. It supports seven control modes—load-controlled, displacement-controlled, strain-controlled, constant-rate, ramp-hold, cyclic, and creep—with real-time switching between modes during active tests. Data visualization includes synchronized multi-curve overlays (e.g., stress–strain, load–displacement, time–strain), automatic parameter extraction (yield strength, ultimate tensile strength, modulus, elongation at break, secant modulus, Poisson’s ratio), and statistical analysis across batches (min/max/mean/std dev). All raw data files are saved in open-format ASCII (.csv) and proprietary binary (.tdf) formats with embedded metadata (operator ID, timestamp, calibration status, environmental conditions). Reports conform to ASTM E691 and ISO/IEC 17025 documentation requirements and can be exported as PDF, Excel, or XML for LIMS integration.
Applications
This universal testing machine serves as a primary mechanical characterization tool in R&D laboratories and QC departments across aerospace (e.g., titanium alloy tensile validation per AMS 2300), automotive (composite crash energy absorption per ISO 179), medical device manufacturing (suture tensile strength per ISO 10993-12), polymer extrusion (melt strength evaluation per ASTM D1238), civil engineering (concrete compressive strength per ASTM C39), and battery component testing (separator puncture resistance per UL 2580). Its modularity enables adaptation to specialized workflows such as high-strain-rate testing (with optional drop-weight add-ons), low-temperature mechanical testing (−70°C to +300°C chamber integration), and fatigue life prediction (via optional servo-hydraulic upgrade kits).
FAQ
What international standards does the TFW-87 comply with?
The system meets ISO 7500-1 Class 0.5 accuracy, ASTM E4 verification requirements, and national standards including GB/T 16491-2008 and JJG 475-2008. Full compliance documentation is provided with each delivery.
Can the system be upgraded for dynamic or fatigue testing?
Yes—while the base configuration is quasi-static, the frame and control architecture support retrofitting with electrodynamic actuators and high-frequency controllers for sinusoidal, block, or random waveform fatigue testing up to 100 Hz.
Is 21 CFR Part 11 compliance available?
FDA 21 CFR Part 11 functionality—including electronic signatures, audit trail logging, and user privilege management—is available as an optional software module with validated installation qualification (IQ) and operational qualification (OQ) protocols.
What is the warranty and service coverage?
Tuofeng provides a standard 24-month parts-and-labor warranty, remote diagnostics support, and on-site service within 72 hours in major industrial zones across Asia, Europe, and North America. Lifetime firmware updates are included at no additional cost.
How is calibration traceability ensured?
All load cells and encoders are calibrated against NIST-traceable reference standards prior to shipment. A full calibration certificate with uncertainty budget and as-found/as-left data is supplied with each unit.
