Tuofeng TFW-320 Microcontroller-Based High-Low Temperature Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TFW-320 |
| Price Range | USD 1,400 – 28,500 |
| Instrument Type | Electromechanical Universal Testing Machine |
| Load Capacity | 0.02 N to 300 kN |
| Load Accuracy | ±0.5% FS |
Overview
The Tuofeng TFW-320 Microcontroller-Based High-Low Temperature Universal Testing Machine is an electromechanical static testing system engineered for precise mechanical property evaluation of metallic and non-metallic materials across a broad thermal spectrum. It integrates a high-performance servo-controlled actuation system with a programmable environmental chamber capable of maintaining stable temperature conditions from −40 °C to +100 °C. This configuration enables standardized uniaxial tensile, compression, flexural, tear, peel, and shear testing under controlled thermal environments—critical for validating material behavior in aerospace, automotive, cryogenic packaging, and high-temperature polymer applications. The system complies with fundamental mechanical test principles defined in ASTM E8/E21, ISO 6892-1, GB/T 228.1, JIS Z 2241, and DIN 50125, supporting both ambient and conditioned test protocols without hardware reconfiguration.
Key Features
- Microcontroller-driven closed-loop control architecture ensures real-time load, displacement, and strain regulation with ±0.5% full-scale accuracy on force measurement and consistent resolution down to 1/500,000 of maximum capacity.
- Modular high-low temperature chamber constructed from 304 stainless steel exterior and 316 mirror-finish interior panels; insulated with high-density alumina-silica fiber for thermal stability and low heat leakage.
- Programmable temperature controller with PID tuning, platinum resistance thermometers (PT100), and dual-zone monitoring—achieving ±2 °C uniformity over 100 mm axial span and ≤5 min thermal equilibrium time across the full operating range.
- Robust dual-column frame (840 mm internal width, 1000 mm crosshead travel) accommodates standard and custom fixtures—including through-chamber tensile grips, compression platens, and peel test jigs—while maintaining structural rigidity during high-load cycling.
- Integrated safety subsystems: overcurrent circuit breakers, ground-fault protection, mechanical limit switches, and automatic emergency stop triggered by temperature deviation or actuator overload.
Sample Compatibility & Compliance
The TFW-320 supports specimens ranging from thin polymer films (≥0.05 mm thickness) to structural metal coupons (up to 50 mm wide × 10 mm thick). Its open-access chamber design—with 50 mm-diameter top/bottom ports and retractable thermal shielding—enables seamless integration with extensometers, video-based strain analyzers, and acoustic emission sensors. All test routines are traceable and audit-ready per GLP and GMP requirements. Software-generated reports include timestamped metadata, operator ID, calibration certificate references, and raw data export in CSV and XML formats compliant with FDA 21 CFR Part 11 for electronic records and signatures.
Software & Data Management
The Windows-based TestMaster Pro software provides intuitive workflow navigation, real-time multi-channel plotting (load vs. displacement, stress vs. strain, temperature vs. time), and automated parameter extraction—including ultimate tensile strength, yield point (0.2% offset), modulus of elasticity, elongation at break, and energy absorption. Users may define custom test sequences via drag-and-drop scripting, apply filtering algorithms (e.g., moving average, Savitzky-Golay), and generate PDF/Excel reports with embedded charts, statistical summaries, and pass/fail criteria overlays. Data integrity is enforced through role-based access control, immutable audit trails, and optional network backup to NAS or cloud repositories.
Applications
- Thermal-mechanical characterization of thermoplastics and elastomers at service temperatures (e.g., PP at −20 °C, PEEK at +80 °C)
- Creep and stress-relaxation studies in composite laminates under sustained load and variable ambient conditions
- Validation of solder joint reliability in PCB assemblies subjected to thermal cycling
- Mechanical screening of ceramic coatings and refractory bricks under compressive loading at elevated temperatures
- Quality assurance of medical-grade silicone tubing and biodegradable sutures per ISO 1798 and ASTM D412
- Research-grade tensile mapping in university laboratories requiring reproducible, standards-aligned results across diverse material classes
FAQ
What temperature ramp rates does the environmental chamber support?
The chamber achieves heating rates up to 10 °C/min and cooling rates of approximately 3 °C/min (from ambient to −40 °C), with programmable multi-step profiles stored in non-volatile memory.
Can the system perform tests in accordance with ASTM D638 and ISO 527-2?
Yes—the TFW-320 meets all dimensional, alignment, and speed-control requirements specified in these standards when configured with appropriate grips, extensometry, and test speed settings (e.g., 1–500 mm/min crosshead velocity).
Is third-party calibration certification available?
Tuofeng provides factory calibration certificates traceable to NIM (National Institute of Metrology, China); optional UKAS-accredited calibration services are available upon request.
How is thermal expansion of the load frame compensated during low-temperature testing?
The system employs zero-drift load cell compensation algorithms synchronized with chamber temperature feedback, ensuring force measurement integrity across the full thermal range without manual recalibration.
Does the software support automated batch testing for production QA?
Yes—TestMaster Pro includes batch mode with auto-sample identification via barcode scanning, pass/fail logic branching, and configurable tolerance bands per parameter.
