Tuofeng TFW-25 Microcomputer-Controlled Servo Universal Testing Machine
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Electromechanical Universal Testing Machine |
| Model | TFW-25 |
| Max. Test Load | 25 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 + Precision Worm Gear Reducer |
| Lead Screw | High-Accuracy 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 Gauge |
| Strain Accuracy | ±0.005% of Reading |
| Safety Protection | Electronic Limit Switches, Emergency Stop, Overload Cut-off (≥110% FS), Dual-Speed Motorized Crosshead Control |
| Return Function | Automatic or Manual High-Speed Return to Initial Position |
| Fixture Customization | Application-specific grips and fixtures available |
| 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 ISO 6892-1 |
Overview
The Tuofeng TFW-25 Microcomputer-Controlled Servo Universal Testing Machine is an electromechanical static testing system engineered for precision mechanical property characterization of metallic, polymeric, composite, and ceramic materials. It operates on the principle of controlled displacement-driven loading, utilizing a high-resolution servo motor coupled with a preloaded ball screw transmission system to deliver stable, repeatable force application across a wide dynamic range. Designed in strict accordance with international metrological and structural standards—including GB/T 16491–2008 (Chinese national standard for electronic universal testers), JJG 475–2008 (verification regulation), and ISO 7500-1:2018 (static calibration of force-measuring systems)—the TFW-25 ensures traceable measurement integrity suitable for GLP-compliant laboratories and ISO/IEC 17025-accredited testing facilities.
Key Features
- 0.5-class accuracy certified force measurement system with ±0.005% reading uncertainty and 1/500,000 full-scale resolution—maintained uniformly across the entire 0.2–100% test range without range switching.
- Imported high-torque servo motor paired with a hardened worm gear reducer and ground ball screw assembly, enabling smooth, low-noise operation and long-term mechanical stability under cyclic loading conditions.
- Dual-speed crosshead control (fast jog + fine positioning) with programmable return logic—supports rapid setup and precise alignment prior to test initiation.
- Integrated safety architecture including hardware-based emergency stop, electronic travel limits, overload cut-off at ≥110% of full scale, and real-time torque monitoring to prevent actuator damage.
- Modular load frame design with standardized mounting interfaces for seamless integration of extensometers, environmental chambers, video extensometry, or hydraulic wedge grips.
- Compliance-ready firmware architecture supporting audit trails, user access levels, and electronic signature functionality aligned with FDA 21 CFR Part 11 requirements when configured with validated software modules.
Sample Compatibility & Compliance
The TFW-25 accommodates specimens ranging from thin polymer films (via pneumatic side-action grips) to high-strength steel bars (using wedge-type mechanical grips), with customizable fixture solutions for tensile, compression, flexural, shear, peel, tear, and puncture testing per ASTM D638, ASTM D790, ISO 527-2, ISO 178, ISO 37, ASTM D903, and ASTM D1876. Its mechanical and metrological performance conforms to ISO 6892-1:2019 (tensile testing of metallic materials), ISO 7500-1:2018 (calibration of force-proving instruments), and GB/T 228.1–2021 (Chinese equivalent of ISO 6892-1). All calibration certificates are NIST-traceable via accredited third-party providers upon request.
Software & Data Management
The Windows-based TuofengTest Pro software provides full test method configuration, real-time multi-curve visualization (force–time, stress–strain, displacement–time, force–extension), and automated parameter derivation—including ultimate tensile strength, yield strength (0.2% offset), Young’s modulus, elongation at break, compressive yield, flexural modulus, and adhesion strength. Data export supports CSV, XML, and PDF formats; batch reporting includes statistical summaries (mean, min, max, SD) across multiple specimens. The software architecture supports language localization (English, Simplified/Traditional Chinese), unit conversion (N/kN/lbf, mm/in, MPa/psi), and user-defined calculation templates. Audit trail logging, role-based access control, and electronic signature capability are available in GxP-compliant deployment configurations.
Applications
The TFW-25 serves as a core instrumentation platform in R&D labs and QC departments across aerospace component validation (e.g., fastener tensile verification per AMS 2300), automotive material qualification (e.g., sheet metal formability per ISO 10275), medical device polymer testing (e.g., suture tensile strength per ISO 10993-12), construction material certification (e.g., rebar tensile per ASTM A615), and battery separator mechanical integrity assessment. Its adaptability to ASTM, ISO, and GB-standardized protocols makes it suitable for inter-laboratory round-robin studies and regulatory submission packages requiring documented measurement uncertainty budgets.
FAQ
What standards does the TFW-25 comply with for force calibration and verification?
The system meets ISO 7500-1:2018 Class 0.5 requirements and is verified per JJG 475–2008 and GB/T 16491–2008, with optional factory calibration certificates traceable to NIM (National Institute of Metrology, China) or UKAS-accredited providers.
Can the TFW-25 be integrated into a LIMS or MES environment?
Yes—via OPC UA or TCP/IP API interface (available as optional module), enabling bidirectional data exchange with laboratory information management systems and manufacturing execution systems.
Is extensometer support included as standard equipment?
A clip-on axial extensometer with ±0.005% strain accuracy is offered as an optional accessory; automatic recognition and channel calibration are supported within TuofengTest Pro.
What is the warranty coverage and service response time?
Tuofeng provides a 24-month comprehensive parts-and-labor warranty, with global technical support delivered through authorized regional service centers; on-site response time is ≤72 business hours for critical failures under premium service contracts.
Does the system support multi-step test profiles such as preload–hold–ramp–unload sequences?
Yes—the software enables fully programmable closed-loop control modes including constant rate of force, constant rate of displacement, constant strain rate, load holding, and displacement holding, with up to 100 programmable steps per test sequence.
