Tuofeng TFW-228 Desktop-Style Electromechanical Universal Testing Machine with Dual-Column Frame
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Electromechanical Universal Testing Machine |
| Model | TFW-228 |
| 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 + Precision Worm Gear Reducer |
| Lead Screw | High-Accuracy Ball Screw |
| Effective Test Width | 600 mm (customizable) |
| Stroke | 800 mm (height-adjustable) |
| 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 Sensor |
| Strain Accuracy | ±0.005% of Reading |
| Safety Protection | Electronic Limit Switches, Emergency Stop Button, Overload Protection (10% above capacity) |
| Crosshead Control | Dual-Speed Motorized Adjustment (Fast/Slow), Programmable Return Function |
| Fixture Customization | Application-specific grips and tooling available |
| Host Dimensions (W×D×H) | 1000 × 700 × 2000 mm |
| Power Supply | 220 V AC, 1.5 kW |
| Net Weight | ~450 kg |
| 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-228 is a dual-column, electromechanical universal testing machine engineered for high-fidelity mechanical property characterization of metallic, polymeric, composite, and ceramic materials under controlled uniaxial loading conditions. It operates on the principle of servo-controlled displacement actuation, where a precision ball screw system translates motor rotation into linear crosshead motion, enabling precise force and displacement control across a broad dynamic range. Designed to meet international metrological and structural integrity standards—including GB/T 16491–2008, JJG 475–2008, ASTM E4 (force verification), ASTM E8/E21 (tensile/compression testing), and ISO 6892-1 (metallic tensile testing)—the TFW-228 delivers traceable, repeatable, and auditable test data suitable for GLP, GMP, and ISO/IEC 17025-compliant laboratories.
Key Features
- 0.5-class accuracy per ISO 7500-1 and GB/T 16491–2008, validated via third-party calibration certificates
- Constant-force-resolution architecture: 1 part in ±500,000 full-scale load codes, eliminating range-switching artifacts and ensuring linearity across 0.2–100% FS
- Dual-speed motorized crosshead with programmable return function—supports rapid setup and standardized post-test retraction
- Integrated overload protection (10% over full scale), emergency stop circuitry, and dual electronic limit switches for fail-safe operation
- Modular extensometry support: compatible with clip-on axial extensometers (for modulus and yield determination) and large-deformation sensors (for rubber, foam, or textile elongation)
- High-rigidity dual-column frame with reinforced base plate and precision-machined guide rails, minimizing deflection during high-load compression tests
Sample Compatibility & Compliance
The TFW-228 accommodates specimens ranging from thin films (<0.1 mm) to structural steel coupons (up to 60 mm thick), provided appropriate fixtures are selected. Standard configurations include wedge-action tensile grips, compression platens, three/four-point bending fixtures, shear adapters, peel test fixtures, and puncture domes. All test protocols align with method requirements in ASTM D638 (plastics), ASTM D3039 (composites), ISO 527-2, ISO 178, EN 10002-1, and JIS Z2241. The system supports full compliance documentation packages—including calibration records, uncertainty budgets, and traceability statements—to facilitate regulatory submissions and external audit readiness (e.g., FDA 21 CFR Part 11–enabled software optional).
Software & Data Management
Control and analysis are performed via Tuofeng’s Windows-based TestMaster Pro software, compliant with ISO 17025 data integrity guidelines. The software supports multiple control modes: closed-loop force, displacement, strain, and rate-controlled ramp-hold sequences. Real-time plotting includes synchronized force–time, stress–strain, displacement–time, and custom user-defined axes. All raw data—including time-stamped analog inputs from load cell, encoder, and extensometer—are stored in binary .tdf format with embedded metadata (operator ID, sample ID, environmental conditions, calibration date). Export options include CSV, XML, and PDF reports conforming to ASTM E1309 and ISO/IEC 17025 reporting requirements. Audit trail functionality logs all parameter changes, test starts/stops, and result modifications with user timestamps and IP addresses—enabling full 21 CFR Part 11 compliance when deployed on domain-authenticated workstations.
Applications
- Mechanical validation of aerospace alloys (e.g., Ti-6Al-4V, 7075-T6 aluminum) per AMS and MIL-STD specifications
- Quality control of automotive composites (CFRP, GFRP) for tensile strength, interlaminar shear, and flexural modulus
- Characterization of medical-grade polymers (PEEK, UHMWPE, silicone elastomers) under ISO 5833 and ASTM F2129
- Construction material certification: reinforcing steel rebars (ISO 15630-1), concrete cores (ASTM C39), and geotextiles (ASTM D4595)
- R&D of battery electrode coatings, flexible electronics substrates, and hydrogel biomaterials requiring sub-newton resolution and micro-strain sensitivity
FAQ
What standards does the TFW-228 comply with for force calibration?
It meets ISO 7500-1 Class 0.5 and GB/T 16491–2008 requirements, with optional NIST-traceable calibration certificates available upon request.
Can the system perform cyclic fatigue testing?
Yes—when equipped with optional closed-loop strain control and waveform generation modules, it supports sinusoidal, triangular, and trapezoidal loading profiles up to 5 Hz (dependent on specimen stiffness and load level).
Is remote monitoring or integration with MES/LIMS supported?
The TestMaster Pro software provides OPC UA and TCP/IP API interfaces for bidirectional communication with manufacturing execution systems and laboratory information management systems.
What is the warranty coverage and service response time?
Standard warranty is 24 months parts-and-labor; extended service contracts include annual preventive maintenance, on-site recalibration, and priority technical support with <48-hour field engineer dispatch in Tier-1 global regions.
Are digital twin or predictive maintenance capabilities available?
An optional Condition Monitoring Module (CMM) collects real-time motor current, thermal signature, and positional jitter data to generate health indices and flag early-stage mechanical degradation—compatible with MQTT-based IIoT platforms.
