YL-S72 Yuelian Universal Testing Machine for Adhesive Peel Strength Testing
| Brand | Yuelian |
|---|---|
| Model | YL-S72 |
| Type | Electromechanical Universal Testing Machine |
| Drive System | AC Servo Motor with Precision Ball Screw Transmission |
| Max. Load Capacity | Up to 5 kN (configurable dual-range option available) |
| Effective Travel | 1000 mm |
| Test Speed Range | 0.01–500 mm/min (customizable) |
| Force Resolution | 1/500,000 full scale |
| Force Accuracy | Better than Class 0.5 per ISO 7500-1 |
| Displacement Resolution | 1/500,000 mm |
| Data Acquisition Rate | 50 Hz |
| Power Supply | 220 V, 50–60 Hz |
| Net Weight | 55 kg |
| Dimensions (W×D×H) | 520 × 590 × 1530 mm |
| Compliance | ISO 7500-1, ASTM E4, ASTM D903, ASTM D3330, ISO 8510-2, GB/T 2790, GB/T 2791, GB/T 2792 |
Overview
The YL-S72 Yuelian Universal Testing Machine is an electromechanical force-testing platform engineered for high-reproducibility mechanical characterization of adhesive bonds and laminated structures under controlled tensile, peel, and shear loading conditions. It operates on a closed-loop servo-controlled architecture, integrating a precision ball screw transmission system and a high-resolution load cell to deliver traceable, ISO 7500-1 Class 0.5 compliant force measurement across its full 5 kN capacity range. Designed specifically for peel strength evaluation per ASTM D903 (Standard Test Method for Peel Resistance of Adhesives), ISO 8510-2 (Adhesives — Determination of Peel Strength — Part 2: 90° Peel), and GB/T 2790 (Peel Strength of Adhesive Bonds Between Flexible and Rigid Substrates), the system supports standardized specimen geometry, consistent peel angle control, and precise displacement-rate regulation—critical parameters governing interfacial failure mode and measured adhesion energy.
Key Features
- AC servo motor-driven actuation with zero-backlash ball screw transmission ensures smooth, low-noise motion and exceptional positional repeatability over the full 1000 mm effective stroke.
- Modular quick-release fixture interface enables rapid interchange of peel jigs (e.g., 90° and 180° peel fixtures), tensile grips, compression platens, and custom tooling without recalibration.
- Dual-range load cell configuration option supports both high-sensitivity low-force testing (e.g., thin-film or pressure-sensitive adhesive evaluation) and high-load structural bond validation within a single instrument.
- Integrated hardware safety suite includes overload cutoff, programmable upper/lower travel limits, emergency stop button, and automatic fracture detection via real-time slope analysis of the force–displacement curve.
- Onboard microprocessor controller synchronizes force, displacement, and time data at 50 Hz, feeding into a Windows-based software platform with full audit trail capability aligned with GLP/GMP documentation requirements.
Sample Compatibility & Compliance
The YL-S72 accommodates standard peel test specimens per ASTM D3330 (Pressure-Sensitive Adhesives), ISO 29862 (Peel Adhesion of PSA Tapes), and GB/T 2792 (Peel Strength of Pressure-Sensitive Adhesive Tapes). Compatible substrates include PET, aluminum foil, stainless steel panels, polyethylene films, and composite laminates. Fixture clearances support widths up to 140 mm and thicknesses up to 10 mm. All test methods are configurable to meet ISO/IEC 17025 laboratory accreditation criteria, and raw data files retain metadata required for FDA 21 CFR Part 11 electronic record compliance when paired with validated software configuration.
Software & Data Management
The proprietary YL-TestSuite v4.x software provides full method definition, real-time multi-curve visualization (force–displacement, force–time, stress–strain), and post-test statistical analysis. Users define up to seven independent test intervals, manually select up to 40 data points, or configure automated sampling at 120 predefined positions. Statistical outputs include maximum/minimum force, average peel load, coefficient of variation (CV), CPK process capability index, and trimmed mean (excluding top/bottom 5% outliers). All graphs support zoom, pan, crosshair cursor, and overlay comparison of up to eight historical datasets. Raw ASCII export (.csv) and PDF report generation support LIMS integration and regulatory submission workflows.
Applications
- Quantitative peel strength assessment of pressure-sensitive adhesives (PSAs) used in medical tapes, labels, and electronic die-cut components.
- Evaluation of interfacial adhesion durability in multilayer packaging films subjected to thermal cycling or humidity exposure.
- Quality control of automotive interior bonding joints (e.g., trim-to-substrate, leather-to-foam) per OEM-specific peel protocols.
- R&D validation of UV-curable, hot-melt, and solvent-based adhesive formulations under variable peel rates and environmental conditioning.
- Comparative testing of surface pretreatment efficacy (plasma, corona, primer) on polymer substrates prior to lamination.
FAQ
What peel angles does the YL-S72 support out of the box?
The system ships with calibrated 90° and 180° peel fixtures compliant with ASTM D903 and ISO 8510-2; custom angular fixtures (e.g., 45°, T-peel) are available as optional accessories.
Can the machine perform cyclic peel testing?
Yes—the software supports multi-step nested control sequences, enabling programmed load–unload cycles, dwell periods, and rate transitions for fatigue and creep–rupture analysis.
Is the force sensor capable of bidirectional measurement?
Yes—sensor polarity is software-selectable, allowing simultaneous tension and compression testing without hardware reconfiguration.
Does the system meet international calibration traceability standards?
All load cells are factory-calibrated against NIST-traceable reference standards, with certificates provided per ISO/IEC 17025 requirements.
What is the minimum resolvable force increment at 50 N full scale?
With 1/500,000 internal resolution, the theoretical minimum detectable change is 0.1 mN—validated by repeated step-load verification per ISO 7500-1 Annex B.
