Tuofeng TFW-15 Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Model | TFW-15 |
| Type | Electromechanical Universal Testing Machine |
| Maximum Test Load | 15 kN |
| Accuracy Class | 0.5 |
| Effective Force Range | 0.2–100% of Full Scale |
| Force Measurement Accuracy | ±0.005% of Reading |
| Load Cell 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 | 400 mm (customizable up to 600 mm) |
| 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 Clip Gauge |
| Strain Accuracy | ±0.005% of Reading |
| Safety Protection | Electronic Limit Switches, Emergency Stop Button, Overload Protection (10% above rated capacity) |
| Crosshead Adjustment | Dual-Speed Motorized Control (Fast/Slow), Programmable Return Function |
| Fixture Customization | Application-specific grips available per ASTM/ISO/GB standards |
| Power Supply | 220 V, 1.0 kW |
| Dimensions (W×D×H) | 780 × 560 × 1700 mm |
| Approx. Weight | 280 kg |
| Compliance | GB/T 16491–2008, JJG 475–2008, ASTM E4, ASTM E8, ISO 6892-1, ISO 7500-1, DIN 51221, JIS Z2241 |
Overview
The Tuofeng TFW-15 Universal Testing Machine is an electromechanical force-testing system engineered for precision mechanical property characterization of metallic, polymeric, composite, and ceramic materials. Based on the fundamental principles of axial load application via servo-controlled displacement and high-fidelity force transduction, the system delivers traceable, repeatable measurements under uniaxial tension, compression, bending, shear, peel, tear, and puncture configurations. Its dual-column rigid frame architecture ensures minimal deflection during high-load testing, while the high-resolution load cell (1:500,000 internal resolution) and optical encoder-based displacement feedback enable sub-micron positional control and force stability within ±0.005% of reading across the full dynamic range (0.2–100% FS). Designed and manufactured in Shanghai, China, the TFW-15 conforms to international metrological and performance standards including ISO 7500-1 (Class 0.5), ASTM E4 (verification of force-measuring systems), and GB/T 16491–2008 (Chinese national standard for electronic UTM design and calibration).
Key Features
- Rigid dual-column steel frame with reinforced crosshead and base plate for torsional and lateral stability during high-stiffness material testing
- Imported servo motor coupled with precision worm gear reducer and ground ball screw drive—ensuring smooth, low-noise, zero-backlash motion control
- Constant-resolution force measurement system (no auto-ranging) eliminates step-change errors and guarantees linearity from 0.2% to 100% of 15 kN full scale
- Dual-speed motorized crosshead adjustment with programmable return function—enabling rapid setup and automated post-test repositioning
- Comprehensive safety architecture: electronic limit switches, hardware emergency stop circuit, and software-enforced overload cutoff at 110% of rated capacity
- Modular fixture interface compatible with standardized wedge, pneumatic, hydraulic, and custom-designed grips per ASTM E8, ISO 6892-1, and GB/T 228.1
- Integrated environmental readiness: stable operation under ambient conditions of 10–35°C and ≤80% RH (non-condensing)
Sample Compatibility & Compliance
The TFW-15 supports standardized test specimens across a wide dimensional spectrum—from miniature coupons (e.g., ASTM E8M sub-size tensile bars) to structural polymer sheets (ASTM D882) and metal foils (ISO 6892-2). With optional extensometers (clip-on or non-contact video-based), it satisfies strain-sensitive protocols such as yield point detection, modulus calculation (E, G), and plastic strain ratio (r-value) determination. The system is fully compliant with regulatory documentation requirements for GLP and GMP environments: audit-trail-enabled software logs all operator actions, parameter changes, and calibration events; raw data files are timestamped, digitally signed, and exportable in CSV, XML, and PDF formats. It meets the technical verification criteria of JJG 475–2008 (Chinese metrological verification regulation) and supports validation against ISO/IEC 17025 accredited calibration laboratories.
Software & Data Management
The Windows-based TFW Control Suite v3.2 provides full compliance with FDA 21 CFR Part 11 through user-level access control, electronic signatures, and immutable audit trails. The software supports seven real-time control modes—including constant rate of extension (CRE), constant load ramping, hold-to-strain, and load cycling—each configurable with multi-step profiles. Real-time plotting includes synchronized force–displacement, stress–strain, and time-series overlays, with automatic annotation of key points (yield, UTS, fracture, offset yield). All calculated metrics—tensile strength, elongation at break, Young’s modulus, compressive yield stress, flexural modulus, peel adhesion energy—are derived directly from raw sensor data using NIST-traceable algorithms. Data export supports batch reporting, statistical summaries (min/max/mean/stdev), curve superposition for comparative analysis, and direct integration with LIMS via ODBC. Firmware and software updates are delivered remotely under lifetime support terms.
Applications
The TFW-15 serves as a primary mechanical characterization platform in R&D labs and QC departments across aerospace (composite layup validation per ASTM D3039), automotive (seatbelt webbing tensile strength per FMVSS 209), medical device manufacturing (suture tensile integrity per ISO 10555-1), rubber and elastomer development (cure-state correlation via stress relaxation per ASTM D624), and construction materials testing (rebar ductility per ASTM A615). Its versatility extends to advanced applications such as creep compliance mapping (per ISO 899-1), cyclic fatigue pre-screening (ASTM D3479), and adhesive bond strength quantification (peel per ASTM D903, lap shear per ASTM D1002). Universities utilize it for undergraduate mechanics labs and graduate-level fracture mechanics research due to its reproducibility (CV < 0.8% for repeated steel tensile tests) and open API for third-party automation integration.
FAQ
What international standards does the TFW-15 support out-of-the-box?
The system includes preloaded test templates for ASTM E8/E9/E21, ISO 6892-1/7500-1/17888, GB/T 228.1–2021, and JIS Z2241, with customizable parameter sets for method-specific validation.
Can the TFW-15 be integrated into an existing laboratory network with centralized data management?
Yes—it supports TCP/IP communication, OPC UA server mode, and SCADA-compatible Modbus TCP protocol for seamless LIMS or MES connectivity.
Is third-party calibration certification included with delivery?
Each unit ships with a factory calibration certificate traceable to CNAS-accredited reference standards; on-site verification by ISO/IEC 17025 labs is available upon request.
What is the warranty coverage and service response time?
Standard warranty is 24 months parts-and-labor; priority technical support is provided within 4 business hours for critical issues, with remote diagnostics and on-site engineer dispatch within 72 hours globally.
Does the system meet electromagnetic compatibility (EMC) and electrical safety requirements for EU and North American markets?
Yes—the TFW-15 carries CE marking per EN 61000-6-2/6-4 and UL/cUL listing per UL 61010-1, ensuring safe deployment in regulated industrial and academic facilities.
