Tuofeng TFW-69 Microcomputer-Controlled Servo-Powered Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Electromechanical Universal Testing Machine |
| Model | TFW-69 |
| Force Capacity | 5–200 kN (configurable series) |
| Accuracy Class | ISO 7500-1 / ASTM E4 Grade 0.5 |
| Compliance | GB/T 16491–2008, JJG 475–2008, ASTM E4, ISO 7500-1, EN 10002-1, DIN 51221 |
| Test Speed Range | 0.001–500 mm/min (infinitely variable) |
| Load Resolution | 1/500,000 full scale (fixed resolution, no range switching) |
| Load & Displacement Accuracy | ±0.005% of reading |
| Effective Test Width | 400–600 mm (customizable) |
| Max Stroke | 800 mm (extendable) |
| Drive System | Imported servo motor + precision worm-gear reducer |
| Actuation | Preloaded recirculating ball screw |
| Safety Systems | Dual-channel electronic limit switches, emergency stop, overload cutoff (>110% F.S.), automatic return-on-completion |
| Software | Multi-language (EN/CN/TC), GLP-compliant audit trail, CFR 21 Part 11-ready configuration option, real-time multi-curve plotting (load-time, stress-strain, displacement-time, etc.), auto-calculation per ASTM D638/D695/D790/D1709/D903/D1876/ISO 6892-1/178/14129/11339, batch comparison & statistical reporting |
Overview
The Tuofeng TFW-69 is a high-precision, microcomputer-controlled electromechanical universal testing machine engineered for static mechanical property evaluation of metallic, polymeric, composite, and ceramic materials under tension, compression, bending, shear, peel, tear, and puncture loading conditions. Based on closed-loop servo control architecture and calibrated force transduction via strain-gauge load cells, the system adheres to fundamental principles defined in ISO 7500-1 (static calibration) and ASTM E4 (verification of force-measuring systems). Its dual-column rigid frame, preloaded ball-screw actuation, and high-resolution optical encoder-based displacement measurement ensure structural stability and metrological integrity across the full operational range — from sub-newton preload characterization to 200 kN ultimate load testing. Designed for integration into QA/QC laboratories, R&D centers, and accredited testing facilities, the TFW-69 meets stringent international requirements for repeatability (≤0.5% RSD), linearity (±0.005% FS), and traceable calibration — supporting both routine compliance verification and advanced constitutive modeling.
Key Features
- Rigid dual-column steel frame with vibration-damped base and reinforced crosshead assembly for minimal deflection under high-load conditions
- Imported high-torque servo motor coupled with precision worm-gear reduction and preloaded recirculating ball screw for smooth, backlash-free motion control
- Fixed-resolution load measurement system (1 part in 500,000 full scale) eliminating range-switching artifacts and ensuring consistent sensitivity from 0.2% to 100% of full-scale capacity
- Real-time dual-channel data acquisition at ≥1 kHz sampling rate, synchronized for force, displacement, and optional strain (via extensometer input)
- Comprehensive safety architecture including hardware-level emergency stop, programmable electronic limits, mechanical overload cutoff (>110% F.S.), and fail-safe power-off logic
- Motorized crosshead with dual-speed positioning (fast jog + fine adjustment) and programmable return-to-start functionality post-test
- Modular fixture interface compliant with ISO 26203-2 and ASTM E1012 standards, enabling rapid tooling changes for standardized or custom specimen geometries
Sample Compatibility & Compliance
The TFW-69 accommodates specimens ranging from miniature coupons (e.g., ASTM E8M subsize tensile bars) to structural components (e.g., extruded aluminum profiles, composite laminates, rubber bushings). Standard configurations support flat, round, and sheet geometries up to 600 mm wide and 800 mm stroke; extended versions accommodate larger aerospace or civil engineering samples. The system is validated for conformance with GB/T 16491–2008 (Chinese national standard for UTM design), JJG 475–2008 (metrological verification), ASTM E4/E8/E9/E21/E1012, ISO 6892-1 (tensile testing), ISO 178 (flexural properties), ISO 14129 (interlaminar shear), and EN 10002-1. Optional configurations include GLP/GMP-aligned software modules with 21 CFR Part 11-compliant electronic signatures, audit trails, and user-access controls — suitable for regulated environments including pharmaceutical excipient testing and medical device material validation.
Software & Data Management
Tuofeng’s proprietary TFW-TestSuite v5.x operates natively on Windows 10/11 and supports multilingual UI (English, Simplified/Traditional Chinese) with configurable unit systems (SI, imperial, CGS). The software implements ASTM-standard test method templates (e.g., D638 for plastics, D695 for compressive strength, D790 for flexure) and allows user-defined protocols for non-standard loading sequences — including hold steps, ramp-and-hold, cyclic loading, and creep/stress-relaxation routines. Real-time plotting includes synchronized overlays of load–time, stress–strain, displacement–time, and custom derivative curves (e.g., tangent modulus, yield offset). All raw data are stored in vendor-neutral ASCII (.csv) and database-backed binary formats with metadata tagging (operator ID, calibration date, environmental conditions). Batch analysis tools compute statistical aggregates (mean, SD, CV%), generate comparative curve superpositions, and export PDF/Excel reports compliant with ISO/IEC 17025 documentation requirements.
Applications
The TFW-69 serves as a primary mechanical characterization platform across industrial and academic domains: tensile property mapping of cold-rolled steels per ASTM A370; interfacial adhesion quantification in automotive thermoplastic composites (ASTM D1876); compressive yield behavior of syntactic foams for marine buoyancy modules; peel resistance of pressure-sensitive adhesives (ASTM D903); tear propagation kinetics in elastomeric seals (ASTM D624); and flexural rigidity assessment of biodegradable polymer scaffolds (ISO 178). It is routinely deployed in third-party certification labs for CNAS-accredited testing, university mechanics labs for undergraduate materials science curricula, and Tier-1 supplier QA departments performing PPAP submissions per AIAG standards.
FAQ
What international standards does the TFW-69 support out-of-the-box?
The base system complies with GB/T 16491–2008, JJG 475–2008, ASTM E4, ISO 7500-1, and EN 10002-1. Preloaded test methods cover ASTM D638, D695, D790, D1709, D903, D1876, and ISO 6892-1, 178, 14129.
Can the system be upgraded for dynamic or fatigue testing?
No — the TFW-69 is a quasi-static electromechanical tester. For cyclic loading, Tuofeng offers parallel electrodynamic systems (e.g., TFD-2000 series) with ±100 kN capacity and 100 Hz bandwidth.
Is 21 CFR Part 11 compliance available?
Yes — optional software licensing enables electronic signature workflows, immutable audit logs, role-based access control, and data integrity validation per FDA requirements.
What is the warranty and service coverage?
Standard coverage includes 24 months parts-and-labor warranty, lifetime firmware updates, and remote diagnostics. On-site calibration and preventive maintenance contracts are available globally through Tuofeng’s authorized service partners.
How is traceability ensured for calibration?
Each unit ships with NIST-traceable certificate of calibration for load cell and encoder subsystems, valid for 12 months. Certificate includes uncertainty budgets per ISO/IEC 17025 Annex A.3 and references to national metrology institutes (NIM, PTB, NPL).
