Tuofeng TFW-261 Computer-Controlled Electronic Tensile Testing Machine

Overview

The Tuofeng TFW-261 is a precision-engineered electromechanical tensile testing machine designed for static mechanical property evaluation of low-to-medium strength materials in R&D laboratories, QC/QA departments, and contract testing facilities. It operates on the principle of controlled uniaxial force application via a servo-motor-driven crosshead, with real-time acquisition of load, displacement, and derived mechanical parameters—including tensile strength, yield strength, elongation at break, modulus of elasticity, tear resistance, peel adhesion, and bond strength. The system complies with internationally recognized test standards including ISO 6892-1 (metallic materials), ASTM D638 (plastics), ASTM D882 (thin plastic sheeting), ASTM D903 (peel strength), and GB/T 228.1 (Chinese national standard for metallic tensile testing). Its rigid dual-column frame, high-resolution load cell, and optical encoder-based position feedback ensure repeatable, traceable, and audit-ready results suitable for GLP-compliant environments.

Key Features

• 5 kN maximum capacity electromechanical drive system with closed-loop PID control for precise speed and load regulation
• Full-scale force measurement range from 0.4% to 100% FS, enabling accurate characterization of both ultra-low-force specimens (e.g., fishing lines, monofilaments, thin films) and robust components (e.g., wire terminals, composite laminates)
• Constant resolution of 1:300,000 across the entire load range—no range switching required, eliminating calibration discontinuities
• 700 mm standard crosshead travel, extendable upon request to accommodate large-format or high-elongation specimens
• Adjustable test speed from 0.01 to 500 mm/min, supporting quasi-static, creep, and slow-strain-rate protocols
• Integrated electronic limit switches and hardware-level emergency stop circuitry meeting IEC 60204-1 safety requirements
• Three-speed motorized crosshead positioning (fast/medium/slow) with programmable return-to-start functionality
• Overload protection triggered at 110% of rated capacity, automatically halting motion and preserving system integrity

Sample Compatibility & Compliance

The TFW-261 accommodates a broad spectrum of specimen geometries and material classes—including monofilament fishing lines (diameters 0.1–1.2 mm), metallic wires (Cu, Al, stainless steel), polymer films (PET, PE, PP), elastomeric strips, paperboard substrates, adhesive tapes, and laminated packaging structures. Standard wedge-action, pneumatic, or custom-designed grips are available to minimize slippage and ensure axial alignment per ISO 527-2 and ASTM D3330. All test methods are fully configurable to align with regulatory frameworks: data audit trails satisfy FDA 21 CFR Part 11 requirements when used with validated software configurations; test reports include timestamped metadata, operator ID, environmental conditions (optional sensor integration), and instrument calibration status. System validation documentation (IQ/OQ/PQ templates) and GMP-aligned SOPs are provided upon request.

Software & Data Management

The Windows-based testing software supports multilingual UI (English, Simplified Chinese, Traditional Chinese), unit conversion (N/kN/lbf, mm/inch, MPa/psi), and dynamic curve visualization—including load-time, load-displacement, stress-strain, and extension-time plots. Real-time parameter calculation includes tensile strength, Young’s modulus, yield offset (0.2%), elongation (%), tear strength (kN/m), peel adhesion (N/mm), and bonding energy (J/m²). Up to 20 test curves can be overlaid for comparative analysis; statistical summaries (mean, min, max, CV%) are auto-generated for batch evaluations. Data export options include CSV, PDF, and XML formats compatible with LIMS and ELN platforms. Software architecture supports user-defined test sequences, role-based access control, electronic signatures, and encrypted local storage. Firmware and application updates are delivered remotely under Tuofeng’s lifetime support agreement.

Applications

• Quality assurance of monofilament and braided fishing lines: breaking strength, knot strength, abrasion-induced degradation profiling
• Mechanical screening of medical device sutures and catheter tubing per ISO 10993-12
• Adhesive performance validation for flexible packaging—peel initiation force, seal integrity, delamination onset
• Tensile behavior quantification of battery electrode coatings, separator membranes, and current collector foils
• Textile fiber strength mapping (e.g., nylon, polyester, aramid) under standardized grip spacing and pre-tension
• Creep and relaxation testing of thermoplastic elastomers and hot-melt adhesives at ambient and elevated temperatures (with optional environmental chamber)

FAQ

What standards does the TFW-261 support out-of-the-box?

It includes preloaded test templates for GB/T 228.1, ISO 6892-1, ASTM E8, ASTM D638, ASTM D882, and JIS Z 2241—with customizable parameter sets for method-specific compliance.
Can the system be integrated into an existing laboratory network?

Yes—Ethernet connectivity enables remote operation, centralized data archiving, and compatibility with common lab informatics systems via TCP/IP and OPC UA protocols.
Is calibration traceability provided?

Each unit ships with a NIST-traceable calibration certificate for force and displacement, valid for 12 months; optional annual recalibration services include on-site verification and ISO/IEC 17025-accredited documentation.
What grip types are recommended for fishing line testing?

Self-tightening capstan grips or rubber-coated vise grips with serrated jaws are standard; custom micro-grips with 0.5 mm jaw width are available for sub-0.2 mm diameter filaments.
Does the software meet FDA 21 CFR Part 11 requirements?

When deployed with password-protected user roles, electronic signature workflows, and immutable audit logs enabled, the system satisfies Part 11 technical controls for regulated environments.