Tuofeng TFW-270 Microcomputer-Controlled Electronic Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TFW-270 |
| Instrument Type | Electromechanical Universal Testing Machine |
| Max Test Load | 200 kN |
| Accuracy Class | 0.5 |
| Effective Force Range | 0.2–100% of Full Scale |
| Force Measurement Accuracy | ±0.005% of Reading |
| Force 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) |
| 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, Overload Protection (10% above capacity) |
| Crosshead Control | Dual-Speed (Fast/Slow) Automatic升降, Point-to-Point Jogging |
| Return Function | Auto-return at maximum speed post-test |
| Fixture Customization | Application-specific grips available |
| Dimensions (W×D×H) | 1100×900×2600 mm |
| Power Supply | 220 V, 3.0 kW |
| Weight | ~1500 kg |
| Standards Compliance | GB/T 16491–2008, JJG 475–2008, ASTM E4, ASTM E8, ISO 6892-1, ISO 7500-1, DIN 51221, JIS Z2241, BS EN 10002-1 |
Overview
The Tuofeng TFW-270 is a high-precision, microcomputer-controlled electromechanical universal testing machine engineered for static mechanical property evaluation of metallic materials, polymers, composites, and ceramics under uniaxial loading conditions. It operates on the principle of controlled displacement actuation via a servo-driven ball screw system, enabling precise application of tensile, compressive, flexural, shear, peel, tear, and puncture loads. The machine conforms to international metrological and performance standards—including ISO 7500-1 (Class 0.5), ASTM E4 (verification of force-measuring systems), and ASTM E8/E8M (tensile testing of metallic materials)—and supports full traceability for GLP and GMP environments when configured with audit-trail-enabled software.
Key Features
- Class 0.5 accuracy per ISO 7500-1 and GB/T 16491–2008, validated across 0.2–100% of full-scale load range without range switching
- Force resolution of 1 part in ±500,000 full-scale codes—enabling sub-newton resolution even at 200 kN capacity
- Imported servo motor coupled with precision worm-gear reducer ensures low-noise, high-torque transmission and long-term repeatability
- High-rigidity dual-column frame with hardened ball screws and preloaded linear guides minimizes deflection and axial play
- Dual-speed crosshead control (fast jog + slow fine positioning) enhances operational efficiency during specimen setup and post-test recovery
- Comprehensive safety architecture: electronic travel limits, hardware emergency stop, software-based overload cutoff (10% over capacity), and mechanical overload buffer
- Modular fixture interface compatible with standardized wedge-action, hydraulic, pneumatic, and custom-designed grips per ASTM E8, ISO 6892-1, and GB/T 228.1
Sample Compatibility & Compliance
The TFW-270 accommodates specimens ranging from thin foils (<0.1 mm thickness) to structural steel sections (up to 60 mm diameter), with adjustable test width (600 mm standard, extendable) and vertical stroke (800 mm standard, field-extendable). It supports standardized test geometries per ASTM E8/E8M (tension), ASTM C39/C39M (compression), ASTM D790 (flexure), ASTM D638/D638M (plastics tensile), and ISO 527-2. All mechanical and electrical subsystems comply with CE machinery directive (2006/42/EC), EMC directive (2014/30/EU), and RoHS 2011/65/EU. Calibration certificates are traceable to NIM (National Institute of Metrology, China) and internationally recognized NMIs via ILAC-MRA signatory laboratories.
Software & Data Management
The embedded Windows-based testing software (v5.3+) supports multi-mode closed-loop control—including constant rate of extension (CRE), constant load ramping, hold-at-load, hold-at-strain, and cyclic protocols. It delivers real-time synchronized acquisition of force, displacement, and optional strain (via extensometer or video-based DIC integration). Data output complies with ASTM E1392 (digital data exchange format) and includes native export to CSV, XML, and PDF. Audit trail functionality meets FDA 21 CFR Part 11 requirements when enabled—recording user logins, method changes, calibration events, and result modifications with timestamped digital signatures. Raw data files are stored in encrypted binary format with SHA-256 checksum verification; backups support network drive mapping and scheduled cloud sync.
Applications
The TFW-270 serves as a primary mechanical characterization platform in R&D labs and QC departments across aerospace (e.g., Ti-6Al-4V tensile anisotropy mapping), automotive (high-strength steel AHSS formability analysis), construction (rebar yield plateau evaluation per ISO 15630-1), medical device manufacturing (stainless-steel guidewire fatigue pre-screening), and advanced materials development (CFRP interlaminar shear strength per ASTM D2344). Its modular design allows seamless integration with environmental chambers (−70°C to +300°C), high-temperature furnaces (up to 1200°C), and acoustic emission sensors for in-situ damage monitoring.
FAQ
What international standards does the TFW-270 support out-of-the-box?
It natively implements test methods and reporting templates for ASTM E8, ASTM E9, ISO 6892-1, ISO 15630-1, GB/T 228.1, and DIN 50125—configurable via software wizard.
Can the system be validated for regulated pharmaceutical or biocompatibility testing?
Yes—when equipped with 21 CFR Part 11-compliant software, IQ/OQ documentation packages, and certified calibration services, it meets GMP Annex 11 and ISO 17025 requirements.
Is remote diagnostics and firmware updates supported?
Yes—the controller features Ethernet-based remote access with TLS 1.2 encryption; firmware updates are delivered via signed package files with version rollback capability.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; on-site technical support within 72 business hours for Tier-1 regions (EU, US, CN, JP, KR) upon validated fault report.
Are third-party transducers (e.g., MTS, Instron) compatible?
Only Tuofeng-certified load cells and extensometers are supported for full accuracy class compliance; non-OEM sensors void metrological certification.
