Yuelian YL-S70 Peel Adhesion Tester (Compliant with GB/T 2792)

Overview

The Yuelian YL-S70 Peel Adhesion Tester is an electromechanical universal testing system engineered for precise measurement of peel strength, tack, and release force in pressure-sensitive adhesives (PSAs), labels, tapes, laminates, and coated films. Designed to comply with GB/T 2792–2014 (“Test Method for Peel Strength of Pressure Sensitive Adhesive Tapes”), this instrument implements a standardized 180° or 90° peel configuration under controlled displacement rate and load feedback. Its core architecture integrates a high-fidelity AC servo drive, precision-ground ball screw transmission, and dual-channel digital signal acquisition at 2000 samples per second—ensuring high reproducibility across repeated peel cycles and enabling dynamic analysis of interfacial debonding behavior. The system supports both static and quasi-static peel regimes, making it suitable for R&D validation, QC release testing, and regulatory documentation in adhesive manufacturing, packaging, medical device labeling, and electronics assembly environments.

Key Features

• Modular dual-range load cell configuration: Selectable capacities from 10 N to 5 kN with seamless auto-ranging and bidirectional force sensing (tension/compression).
• Sub-micron displacement resolution (1/500,000 mm) and ±0.1% force accuracy—certified traceable to national metrological standards.
• Programmable multi-step test protocols: Define velocity profiles, dwell periods, pre-load conditioning, automatic return-to-start, fracture detection, and zero-point reinitialization.
• Real-time synchronized plotting of up to four independent curves: Force vs. Displacement, Force vs. Time, Displacement vs. Time, and Stress vs. Strain.
• Quick-change fixture interface with standardized ISO 23529-compliant mounting geometry—enabling rapid transition between peel jigs, tensile grips, bend fixtures, and puncture anvils.
• Integrated hardware safety layer: Overload cutoff, emergency stop button, upper/lower limit switch activation, stroke overtravel protection, and automatic halt upon specimen failure.
• Robust mechanical construction: Anodized aluminum linear guides, ABS polymer housing with electrostatic powder coating, and sealed ball screw with protective extruded aluminum shroud.

Sample Compatibility & Compliance

The YL-S70 accommodates standard peel substrates including stainless steel, PET, PE, PP, and aluminum foil as specified in GB/T 2792, ASTM D3330, PSTC-101, and FINAT FTM 1. Specimen widths range from 10 mm to 50 mm; strip lengths support ≥150 mm minimum for stable peel front propagation. The tester meets mechanical design requirements for GLP-compliant laboratories and supports audit-ready operation when paired with validated software. While the base unit does not include FDA 21 CFR Part 11-compliant electronic signatures or audit trail modules, its data export architecture (CSV, XML, PDF report templates) facilitates integration into LIMS or QMS platforms requiring ISO/IEC 17025 traceability.

Software & Data Management

The embedded Windows-based control software provides ISO 17025-aligned test method libraries—including preconfigured GB/T 2792, ASTM D903, and ISO 8510-2 routines—with editable parameters for angle, speed, substrate pretreatment, and dwell time. Statistical analysis tools compute mean peel force, standard deviation, coefficient of variation (CV%), CPK, median, trimmed mean (excluding top/bottom 5%), and confidence intervals (95%). Graphical overlays permit side-by-side comparison of up to seven historical tests; manual point annotation (up to 40 points) and automated interval sampling (120 points per curve) support detailed interfacial energy quantification. Raw data exports retain full timestamped metadata, calibration coefficients, environmental logs (if external sensor inputs are added), and operator ID fields.

Applications

• Quantitative peel strength evaluation of medical transdermal patches and surgical tapes per ISO 2528 and USP <1207>.
• Release liner characterization for lithium-ion battery electrode coatings and flexible printed electronics.
• Quality conformance testing of food-grade label adhesives against shelf-life aging protocols (e.g., 40°C/75% RH for 14 days).
• Adhesive formulation screening during R&D—correlating monomer composition with interfacial fracture energy.
• Mechanical validation of automotive interior trim bonding systems under thermal cycling (−40°C to +85°C preconditioning prior to peel).
• Failure mode analysis via synchronized video capture (optional USB camera integration) synchronized with force-displacement traces.

FAQ

Does the YL-S70 meet international peel testing standards beyond GB/T 2792?
Yes—it is mechanically and algorithmically compatible with ASTM D903 (peel resistance of adhesive bonds), ISO 8510-2 (adhesives — determination of peel resistance — part 2: 90° peel), and PSTC-101 (standard test method for peel adhesion of pressure-sensitive tape). Calibration certificates reference NIST-traceable standards.
Can the system perform cyclic peel or fatigue testing?
Yes—the software supports nested loop programming with up to 99 iterations per cycle, variable amplitude ramping, and conditional branching based on real-time force thresholds or displacement limits.
Is third-party calibration and validation support available?
Yuelian provides factory calibration reports (including uncertainty budgets) and offers IQ/OQ documentation packages for GMP-regulated users upon request. On-site SAT (Site Acceptance Testing) and annual recalibration services are coordinated through authorized regional partners.
What peripheral accessories are required for routine GB/T 2792 testing?
A 180° peel jig with fixed-angle roller, stainless steel test plate (100 × 100 mm, Ra ≤ 0.8 µm), and calibrated tension preload fixture are recommended. These comply with Clause 5.2 of GB/T 2792–2014 and are available as optional accessories.
How is data integrity ensured during long-duration peel tests?
The system employs non-volatile memory buffering and dual-write caching to prevent data loss during power interruption. All acquired values are timestamped with microsecond resolution and logged with checksum verification. Exported datasets include embedded MD5 hashes for forensic integrity verification.