YL-S70 Yuelian Electronic Tensile Testing Machine for Coating Peel Strength and Multimode Mechanical Property Evaluation

Overview

The YL-S70 Yuelian Electronic Tensile Testing Machine is a modular, high-fidelity universal testing system engineered for quantitative mechanical characterization of coatings, thin films, adhesives, laminates, polymers, composites, and flexible packaging materials. Specifically configured for peel strength evaluation per ASTM D903, ISO 8510-2, and EN 1977, it applies controlled tensile loading to assess interfacial adhesion integrity under standardized 90° or 180° peel geometries. Its core architecture integrates a precision ball screw transmission system driven by an AC servo motor, ensuring repeatable force application across the full 10 N to 5 kN dynamic range. The machine operates on closed-loop displacement and load control, enabling rigorous compliance with GLP/GMP documentation requirements and supporting audit-ready test execution in regulated environments.

Key Features

• High-resolution force measurement with better-than-Class-0.5 accuracy (per ISO 7500-1) and 1/500,000 full-scale resolution — critical for low-force peel initiation detection and plateau force quantification.
• Precision displacement sensing at 1/500,000 mm resolution over 450 mm effective travel, supporting accurate elongation tracking during progressive delamination.
• Multi-mode control architecture: supports constant-rate, constant-load, constant-displacement, and rate-controlled stress/strain ramping — essential for simulating real-world debonding kinetics.
• Dual-directional load cell capability: enables seamless transition between tensile and compressive testing without hardware reconfiguration.
• Modular fixture interface with quick-connect couplings: facilitates rapid interchange of peel jigs (e.g., 90° peel fixtures per ASTM D3330), pneumatic clamps, and custom tooling for non-standard substrates.
• Integrated safety system: includes dual-limit switch protection, overload cutoff, emergency stop circuitry, and programmable upper/lower stroke boundaries.
• Robust mechanical construction: anodized aluminum beam housing, ABS polymer enclosure with electrostatic powder coating, and sealed ball screw assembly for long-term dimensional stability.

Sample Compatibility & Compliance

The YL-S70 accommodates specimens ranging from micro-thin metallized PET foils (<5 µm) to rigid composite laminates up to 10 mm thick. Standard configurations support ASTM D903 (peel resistance of adhesive bonds), ASTM D1876 (T-peel), ISO 8510-1 (adhesive peel strength), and ISO 11339 (peel testing of pressure-sensitive tapes). Optional extensometers (contact and non-contact) enable strain-controlled protocols required for ISO 527-2 and ASTM D638. All test methods are fully traceable to NIST-calibrated reference loads and documented per ISO/IEC 17025 calibration guidelines. The system’s firmware and software comply with data integrity principles aligned with FDA 21 CFR Part 11 (electronic records/signatures) when operated with audit-trail-enabled configuration.

Software & Data Management

The proprietary PC-based control and analysis suite provides comprehensive test method definition, real-time visualization, and statistical post-processing. Users define multi-step test sequences—including pre-load conditioning, ramp-hold cycles, automatic fracture detection, and return-to-start—via intuitive graphical workflow editors. Real-time plotting supports simultaneous display of force–displacement, force–time, stress–strain, and displacement–time curves, with crosshair cursors, zoom/pan, and overlay comparison of up to seven historical datasets. Statistical reporting includes peak load, average peel force, standard deviation, CPK indices, and outlier-filtered mean values (e.g., excluding initial transient spikes). Raw ASCII and XML export formats ensure compatibility with LIMS, MES, and third-party analytics platforms (e.g., MATLAB, Python Pandas).

Applications

• Quantitative peel strength assessment of painted metal substrates, PVD-coated automotive trim, and medical device adhesive layers.
• Evaluation of interlaminar shear strength in multilayer flexible packaging (e.g., Alu/PET/PE structures).
• Adhesion validation of conformal coatings on PCB assemblies per IPC-TM-650 2.4.1.
• Mechanical screening of pressure-sensitive adhesives (PSAs) under variable peel angles and rates.
• Compression testing of foam gaskets and elastomeric seals per ASTM D3574.
• Cyclic fatigue testing of bonded joints using programmable load/displacement waveforms.
• Three-point bending of thin-film solar cell substrates and flexible OLED encapsulation layers.

FAQ

What peel test standards does the YL-S70 support out-of-the-box?
ASTM D903, ASTM D1876, ISO 8510-2, ISO 11339, and EN 1977 — with preloaded method templates and configurable geometry parameters.
Can the system be validated for ISO/IEC 17025-compliant laboratories?
Yes — full traceability to national metrology institutes is supported via optional certified load cell calibration kits and documented uncertainty budgets.
Is third-party software integration possible?
Yes — the system exposes a COM-based API and supports OPC UA connectivity for integration into factory automation and quality management systems.
What is the minimum detectable peel force resolution?
At 10 N capacity setting, the system achieves <0.02 mN resolution — sufficient for nanoscale thin-film delamination studies.
Does the machine support automated pass/fail decision logic?
Yes — users can define acceptance thresholds (e.g., “peel force ≥ 8.5 N ± 10%”) and trigger visual/audio alerts or PLC outputs upon deviation.