Tuofeng TFW-22 Universal Testing Machine for Polymer Materials

Overview

The Tuofeng TFW-22 Universal Testing Machine is an electromechanical materials testing system engineered for high-fidelity mechanical characterization of polymeric materials, composites, elastomers, thermoplastics, and fiber-reinforced systems. Based on the principle of controlled uniaxial force application via a closed-loop servo-driven actuation system, it delivers precise, repeatable load–displacement data under tension, compression, bending, shear, peel, tear, and puncture configurations. Its dual-column rigid frame architecture ensures minimal deflection and optimal alignment stability—critical for accurate modulus determination and low-force yield detection in viscoelastic polymers. Designed to meet international metrological standards—including ISO 7500-1:2018 (static calibration), ASTM E4 (force verification), and GB/T 16491–2008 (Chinese national standard for UTM design)—the TFW-22 serves as a primary reference instrument in R&D labs, QC/QA departments, and third-party certification bodies requiring traceable, auditable mechanical test data.

Key Features

• Rigid dual-column steel frame with reinforced crosshead and high-stiffness base plate, minimizing parasitic deformation during high-load polymer creep or fatigue testing.
• Precision preloaded ball screw drive system coupled with imported servo motor and harmonic worm gear reducer—enabling smooth, low-noise motion across the full speed range (0.001–500 mm/min) with <0.1% speed stability.
• 0.5-class accuracy certified load cell with 1:500,000 internal resolution, supporting seamless measurement from 0.2% to 100% of full scale (20 kN) without range switching or recalibration.
• Integrated optical encoder displacement measurement with ±0.005% reading accuracy; optionally paired with ASTM E83-compliant clip-on extensometers (for modulus and yield point) or non-contact video extensometry (for large-strain or soft-material applications).
• Dual-mode safety architecture: hardware-level electronic limit switches, software-configurable overload thresholds (110% FS), and redundant emergency stop circuitry compliant with IEC 61800-5-2 functional safety requirements.
• Intelligent crosshead control with fast/slow dual-speed jog mode, programmable auto-return, and position memory for rapid test setup repeatability.

Sample Compatibility & Compliance

The TFW-22 accommodates standardized and custom specimens per ISO 527, ASTM D638 (tensile), D790 (flexural), D1876 (peel), D624 (tear), and GB/T 1040 series protocols. With a 600 mm effective test width and 800 mm stroke (extendable), it handles ASTM Type I–V dog-bone tensile bars, compression cylinders up to Ø150 mm × 300 mm, 3-point/4-point bend fixtures, and specialized grips for films, fibers, foams, and adhesives. All mechanical and electrical subsystems conform to CE machinery directive 2006/42/EC, RoHS 2011/65/EU, and EMC directive 2014/30/EU. Calibration certificates are traceable to NIM (National Institute of Metrology, China) and support ISO/IEC 17025 accreditation workflows.

Software & Data Management

Tuofeng TestSuite v4.2 is a Windows-native, 64-bit application supporting GLP-compliant operation. It offers real-time multi-curve display (load–time, stress–strain, displacement–time, etc.), automated parameter extraction (UTS, YS, E-modulus, elongation at break, secant modulus, Poisson’s ratio), and batch statistical reporting (mean, SD, CV%, min/max). The software includes built-in compliance modules for ASTM, ISO, GB, DIN, JIS, and BS standards—with customizable test templates and pass/fail criteria. Audit trail logging records all user actions, parameter changes, and calibration events. Optional FDA 21 CFR Part 11 module enables electronic signatures, role-based access control, and immutable data archiving—fully compatible with GMP and ISO 13485 quality management systems.

Applications

• Quantification of tensile strength, yield behavior, and ductility in thermoplastic resins (e.g., PP, PE, PC, PEEK) and thermosets (epoxy, phenolic).
• Compression testing of polymer foams, elastomeric seals, and structural composites under ISO 844 and ASTM D1621.
• Peel strength evaluation of pressure-sensitive adhesives (PSAs), laminated films, and medical device packaging per ASTM D903 and ISO 8510-2.
• Tear resistance analysis of rubber sheets, synthetic membranes, and geotextiles using trouser, wing, or crescent geometries (ASTM D624, ISO 34-1).
• Creep and stress-relaxation profiling under constant load or displacement conditions—enabled by advanced hold-control algorithms and thermal drift compensation.
• Quality conformance verification for automotive interior trim, aerospace composite layups, and biodegradable packaging materials against OEM specifications.

FAQ

What standards does the TFW-22 support out-of-the-box?
It natively implements test methods from ASTM D638, D790, D1876, D624, ISO 527, ISO 7500-1, GB/T 1040, GB/T 16491, and JJG 475—configurable via pre-loaded templates.
Can the system be integrated into an existing LIMS or MES environment?
Yes—via TCP/IP API, OPC UA interface, or CSV/Excel export with timestamped metadata; optional SQL database connector available for enterprise-level data ingestion.
Is third-party calibration and ISO/IEC 17025 accreditation support provided?
Tuofeng supplies factory calibration reports traceable to NIM; on-site accredited calibration services and uncertainty budgeting documentation are available upon request.
What extensometer options are compatible with polymer testing?
Standard offerings include ASTM E83 Class B clip-on extensometers (10–50 mm gauge length), non-contact digital image correlation (DIC) kits, and pneumatic side-grip extensometers for low-modulus hydrogels or soft tissues.
Does the software support multi-user permission levels and electronic signatures?
Yes—the optional 21 CFR Part 11 module provides role-based permissions, biometric or token-based e-signatures, and tamper-evident audit logs meeting FDA and EMA regulatory expectations.