Tuofeng TFW-266 Intelligent Wire Harness Tensile Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TFW-266 |
| Instrument Type | Electromechanical Universal Testing Machine |
| Price Range | USD 1,400 – 14,000 (FOB Shanghai) |
| Compliance | GB/T 16491–2008, JJG 475–2008 |
| Accuracy Class | 0.5 |
| Effective Force Range | 0.2%–100% of Full Scale |
| Force Measurement Accuracy | ±0.005% of reading |
| Resolution | 1/500,000 full-scale code, single-range, constant resolution |
| Drive System | Imported servo motor with precision worm-gear reducer |
| Lead Screw | High-precision preloaded ball screw |
| Effective Test Width | 400 mm (customizable up to 600 mm) |
| Stroke | 800 mm (extendable) |
| Speed Range | 0.001–500 mm/min (infinitely variable, programmable) |
| Displacement Measurement | Optical encoder |
| Displacement Accuracy | ±0.005% of reading |
| Strain Measurement | Optional extensometer or large-deformation clip-on sensor |
| Strain Accuracy | ±0.005% of reading |
| Safety Protection | Electronic limit switches, emergency stop button, overload protection (110% FS auto-shutdown) |
| Crosshead Control | Dual-speed (fast/slow) motorized lift/descent with jog function |
| Return Mode | Automatic high-speed return post-test |
| Load Holding Capability | Yes (programmable dwell time) |
| Fixture Customization | Application-specific grips for wire harnesses, crimped terminals, insulation sleeves, and multi-core assemblies |
| Power Supply | 220 V AC, 750 W |
| Dimensions (W×D×H) | 780 × 560 × 1700 mm |
| Weight | ~280 kg |
Overview
The Tuofeng TFW-266 Intelligent Wire Harness Tensile Testing Machine is a CE-compliant, microprocessor-controlled electromechanical universal testing system engineered specifically for the mechanical integrity evaluation of automotive, aerospace, and industrial wire harness assemblies. Unlike generic tensile testers, the TFW-266 integrates hardware and software architectures optimized for low-force, high-resolution measurement of crimp pull-out strength, terminal retention force, insulation tear resistance, and flexural fatigue behavior under controlled displacement or load conditions. Its measurement principle follows ISO 7500-1 (static calibration of force-proving instruments) and ASTM E4 (load verification), employing closed-loop servo control with real-time PID adjustment to maintain target strain rate or load ramp profiles within ±0.5% deviation. The system meets structural and metrological requirements defined in GB/T 16491–2008 (Chinese national standard for electronic universal testers) and JJG 475–2008 (verification regulation for electromechanical testers), ensuring traceability to national metrology institutes.
Key Features
- High-fidelity force sensing with 0.5-class accuracy and 1/500,000 internal resolution—enabling reliable detection of sub-newton forces typical in connector retention testing.
- Programmable dual-speed crosshead actuation (fast positioning + slow testing mode) for rapid setup and precise test execution.
- Modular fixture interface supporting standardized DIN 46228-compatible crimp pull fixtures, insulated sleeve clamps, and multi-axis harness anchoring jigs.
- Real-time synchronization of load, displacement, and optional strain signals at ≥1 kHz sampling rate for accurate capture of transient failure events.
- Integrated safety architecture including hardware-based emergency stop, electronic overtravel limits, and automatic overload cutoff at 110% of rated capacity.
- Self-calibrating transducer system with digital zero-tracking compensation to minimize thermal drift during extended thermal cycling tests.
Sample Compatibility & Compliance
The TFW-266 accommodates wire harness specimens ranging from 0.13 mm² (AWG 26) to 50 mm² (AWG 1/0), including single-core, twisted-pair, shielded, and multi-layer laminated configurations. It supports standardized test methods per SAE J1703 (automotive wiring pull-out), USCAR-21 (connector retention), ISO 6722-2 (automotive wire tensile), and IEC 60512-2 (electrical connector mechanical testing). All mechanical and electrical subsystems comply with EN 61000-6-2 (EMC immunity) and EN 61000-6-4 (EMC emission) standards. Calibration certificates are issued per ISO/IEC 17025 requirements when used in GLP/GMP-regulated environments.
Software & Data Management
The bundled Windows-based TensilePro™ v4.2 software provides full 21 CFR Part 11 compliance through audit-trail logging, user-role access control, electronic signatures, and immutable data archiving. It supports ASTM D638, ISO 527, GB/T 2568, and custom protocol scripting. Real-time curve overlays enable comparative analysis across batches; statistical summaries (mean, SD, CV%, min/max) are auto-generated per test group. Data export formats include CSV, XML, PDF report templates, and direct SQL database integration. Software updates are delivered via secure HTTPS channel with cryptographic signature verification—no external internet dependency required during operation.
Applications
- Terminal crimp pull-out strength verification per USCAR-21 Clause 5.3.2
- Insulation jacket tear resistance assessment under constant-rate displacement
- Multi-point flex fatigue simulation using programmable cyclic loading profiles
- Shield braid tensile retention testing for EMI-critical harnesses
- Connector housing deformation analysis during mating/unmating cycles
- Qualification testing of solderless crimp joints per IPC/WHMA-A-620
FAQ
Does the TFW-266 support automated pass/fail decision logic based on user-defined thresholds?
Yes—threshold-based go/no-go evaluation can be configured per test step, with visual alerts and automatic result tagging in the database.
Can the system interface with PLC-controlled environmental chambers?
Yes—RS-485 and Ethernet Modbus TCP protocols are supported for synchronized temperature-humidity-force control loops.
Is third-party calibration documentation included with shipment?
A factory calibration certificate traceable to NIM (National Institute of Metrology, China) is provided; ISO/IEC 17025-accredited field calibration services are available upon request.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; on-site technical support within 72 hours for Tier-1 customers in APAC region.
Are firmware and software upgrades backward-compatible with legacy test method files?
Yes—all versions maintain full binary compatibility with existing .tpx test definition files and historical database schemas.
