Tuofeng TFW-72 Dual-Space Electromechanical Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TFW-72 |
| Instrument Type | Electromechanical Universal Testing Machine |
| Load Capacity Options | 5–200 kN (configurable) |
| Accuracy Class | 0.5 |
| Effective Force Range | 0.2%–100% of full scale |
| Force Measurement Accuracy | ±0.005% of reading |
| Resolution | 1 part in ±500,000 full-scale codes (no range switching, constant resolution) |
| Drive System | Imported servo motor with precision worm-gear reducer |
| Lead Screw | High-accuracy preloaded ball screw |
| Effective Test Width | 400–600 mm (customizable) |
| Max Travel | 800 mm (extendable) |
| Speed Range | 0.001–500 mm/min (infinitely variable) |
| Displacement Measurement | Optical encoder, accuracy ±0.005% of reading |
| Strain Measurement | Optional extensometer or large-deformation sensor, accuracy ±0.005% of reading |
| Safety Systems | Electronic limit switches, emergency stop, overload protection (10% over capacity), dual-speed motorized crosshead control |
| Return Function | Automatic or manual high-speed return to initial position |
| Fixture Customization | Application-specific grips and tooling available |
| Power Supply | 220 V AC, 0.75–3.0 kW (model-dependent) |
| Frame Dimensions (W×D×H) | Up to 1100×900×2600 mm |
| Weight | 280–1500 kg (model-dependent) |
| Compliance | GB/T 16491–2008, JJG 475–2008, ASTM E4, ASTM E8, ASTM D638, ISO 6892-1, ISO 7500-1, DIN 51221, JIS Z2241, BS EN 10002-1 |
Overview
The Tuofeng TFW-72 Dual-Space Electromechanical Universal Testing Machine is an engineered platform for high-fidelity mechanical characterization of metallic, polymeric, ceramic, composite, and elastomeric materials. Based on closed-loop servo-controlled electromechanical actuation and compliant with ISO 7500-1:2018 and ASTM E4 calibration standards, the system delivers traceable force measurement across a broad dynamic range—from sub-newton preload verification to 200 kN static tensile/compressive loading. Its dual-space architecture—featuring independent upper and lower test zones—enables simultaneous or sequential execution of tension, compression, flexure, shear, peel, tear, and puncture tests without mechanical reconfiguration. The machine operates under precise displacement, load, or strain control modes, supporting both quasi-static and low-rate dynamic protocols required for material certification, process validation, and R&D benchmarking.
Key Features
- Dual-column rigid frame with reinforced cast-iron base and high-stiffness crosshead assembly, minimizing deflection during high-load testing.
- Preloaded precision-ground ball screws coupled with imported servo motors and harmonic-reduction gearboxes ensure smooth, backlash-free motion and long-term repeatability.
- Constant-resolution force transduction at 1/±500,000 full-scale, eliminating range-switching artifacts and enabling seamless transition from creep preconditioning to ultimate failure.
- Integrated electronic safety interlocks—including programmable soft limits, hardware-based emergency stop circuitry, and real-time overload detection (10% over full scale)—meet IEC 61800-5-2 functional safety requirements.
- Motorized crosshead with dual-speed positioning (fast jog + fine-adjust) and automatic post-test return reduces operator intervention and improves throughput consistency.
- Modular fixture interface compatible with standardized wedge-action grips, compression platens, bend fixtures, peel arms, and custom-designed tooling per ASTM D3330, ISO 8510-2, or internal specifications.
Sample Compatibility & Compliance
The TFW-72 accommodates specimens ranging from miniature wire segments (Ø0.1 mm) to structural beams (up to 600 mm wide × 800 mm tall). It supports standardized specimen geometries per ISO 6892-1 (tensile), ASTM D790 (flexural), ASTM D695 (compressive), ASTM D1876 (peel), and ASTM D624 (tear). All mechanical and metrological performance parameters comply with GB/T 16491–2008 (Chinese national standard for UTM design), JJG 475–2008 (verification regulation), and international equivalencies including ISO 7500-1 (force measurement accuracy) and ISO 5893 (displacement system verification). For regulated environments, optional audit-trail-enabled software modules support 21 CFR Part 11 compliance through electronic signatures, change logs, and data integrity controls.
Software & Data Management
The Windows-based Tuofeng TestSuite v4.x provides deterministic real-time control and synchronized multi-channel acquisition (load, displacement, strain, temperature if equipped). Users select from predefined test methods (e.g., “ASTM D638 Tensile – Type I Specimen”) or build custom protocols with nested control loops (e.g., ramp-to-load → hold → ramp-to-strain → unload). The software displays synchronized time-domain plots: load vs. time, stress vs. strain, displacement vs. time, and extension vs. load—with real-time calculation of modulus, yield offset (0.2%), ultimate tensile strength, elongation at break, Poisson’s ratio (with biaxial extensometry), and energy absorption (area under curve). Raw data exports to CSV, Excel, or XML; graphical reports include customizable headers, pass/fail thresholds, statistical summaries (n ≥ 3), and comparative overlay of up to 12 curves. Data files are immutable upon finalization and support GLP/GMP-compliant archiving with SHA-256 hash verification.
Applications
The TFW-72 serves as a primary mechanical test asset across quality assurance laboratories and engineering departments in aerospace (composite layup validation), automotive (seatbelt webbing, gasket compression set), medical device manufacturing (suture tensile strength, balloon burst pressure), construction materials (rebar yield behavior, concrete cylinder compression), and advanced packaging (film seal integrity, carton crush resistance). Its flexibility extends to research applications such as viscoelastic modeling (via creep/recovery sequences), fracture mechanics (R-curve determination), and additive manufacturing qualification (anisotropic tensile response across build orientations). Universities utilize it for undergraduate mechanics labs and graduate-level constitutive model development requiring high signal-to-noise ratio and sub-micron displacement resolution.
FAQ
What standards does the TFW-72 support out-of-the-box?
It includes built-in method templates for ASTM E8/E9/E21, ISO 6892-1/7500-1/527, GB/T 228.1, and JIS Z2241, with editable parameters for user-defined standards.
Can the system be integrated into an existing LIMS or MES environment?
Yes—via OPC UA or TCP/IP API, enabling bidirectional data exchange with LabVantage, Thermo Fisher SampleManager, or Siemens Opcenter.
Is third-party calibration certification available?
Tuofeng provides NIST-traceable factory calibration reports; optional UKAS-accredited field calibration is available upon request.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; priority technical support with remote diagnostics and onsite engineer dispatch within 72 business hours globally.
Does the system support high-temperature or environmental chamber integration?
Yes—the dual-space design allows seamless coupling with industry-standard chambers (−70°C to +300°C) via flanged load train interfaces and thermal compensation algorithms.
