Yuelian YL-S70 Computer-Controlled Peel Tester for VHB Double-Sided Tape

Overview

The Yuelian YL-S70 Computer-Controlled Peel Tester is a high-precision universal tensile and peel testing system engineered for quantitative mechanical characterization of pressure-sensitive adhesives—particularly high-performance acrylic VHB (Very High Bond) double-sided tapes—under standardized ASTM D3330, ASTM D903, ISO 8510-2, and PSTC-101 test protocols. Built on a rigid aluminum extrusion frame with anodized silver-finished protective shrouds and ABS polymer housing, the system employs a closed-loop AC servo motor and precision-ground ball screw drive to deliver stable, low-noise motion control across its 450 mm effective stroke. Its modular design supports rapid interchange of peel fixtures—including 180°, 90°, T-peel, and loop-tack configurations—enabling reproducible measurement of peel adhesion strength (N/mm), residual tack, and cohesive failure mode analysis. The instrument operates under force-, displacement-, or strain-controlled modes with programmable multi-step sequences, making it suitable for both routine QC verification and R&D-level interfacial mechanics studies in adhesive development labs and manufacturing quality departments.

Key Features

• Full computer control via Windows-based software with intuitive GUI, supporting real-time dual-curve display (e.g., force vs. displacement and stress vs. strain simultaneously)
• High-resolution data acquisition at 50 Hz with force resolution up to 1/500,000 FS and displacement resolution down to 0.000002 mm
• Seven user-defined test zones, 40 manual data points, and 120 auto-sampled points per test for granular event capture (e.g., initial tack onset, plateau peel region, final debonding)
• Comprehensive statistical engine calculating mean, median, standard deviation, CpK, upper/lower confidence bounds, and outlier-filtered averages per batch
• Multi-mode control: constant rate, constant load, constant strain, ramp-hold-relax, cyclic loading, and conditional logic (e.g., auto-stop on specimen rupture or preset displacement limit)
• Bi-directional load cell calibration with polarity switching capability for compression and tension testing without hardware reconfiguration
• Integrated safety architecture including overload cutoff, emergency stop button, travel limit switches, and software-enforced upper/lower bound constraints

Sample Compatibility & Compliance

The YL-S70 accommodates a broad range of substrate-adhesive-substrate configurations used in electronics assembly, automotive trim bonding, architectural glazing, and medical device packaging. Standard peel fixtures support tape widths from 10 mm to 50 mm and backing materials including PET, PI, aluminum foil, stainless steel, and anodized aluminum. Test specimens comply with ISO 2936:2022 (adhesive tape testing) and ASTM D1876 (T-peel test). Data integrity meets GLP/GMP documentation requirements through audit-trail-enabled software logging, electronic signature support, and exportable CSV/PDF reports traceable to ISO/IEC 17025 calibration records. Optional extensometers enable strain-controlled peel initiation for viscoelastic characterization per ASTM D638.

Software & Data Management

The embedded testing software provides full IEC 62304-compliant architecture with role-based access control, password-protected method templates, and version-stamped test protocols. All raw data—including time-stamped force, displacement, and calculated stress/strain values—are stored in encrypted SQLite databases with automatic backup scheduling. Graphical overlays allow side-by-side comparison of up to eight historical tests with synchronized axis scaling and differential curve math (e.g., Δforce between batches). Export options include Excel-compatible .csv, vector-based .svg plots, and FDA 21 CFR Part 11–compliant PDF reports containing operator ID, calibration certificate IDs, environmental conditions (optional sensor integration), and pass/fail flags against pre-set specification limits.

Applications

• Quantification of 180° peel strength of VHB tapes on painted steel, powder-coated aluminum, and polycarbonate substrates per ASTM D3330 Method A
• Evaluation of aging effects (thermal, UV, humidity) on adhesive bond durability using sequential peel testing with automated pass/fail decision logic
• Comparative analysis of liner release force versus application pressure during roll-to-roll lamination processes
• Characterization of temperature-dependent peel kinetics using optional environmental chamber integration (-40°C to +150°C)
• Validation of adhesive performance in medical-grade silicone and polyolefin laminates per ISO 10993-5 cytotoxicity screening prerequisites
• Support for ISO 15197:2013 glucose meter strip peel testing in IVD manufacturing environments

FAQ

What peel angles does the YL-S70 support out-of-the-box?

The system ships with standardized 180° and 90° peel fixtures; T-peel and loop-tack fixtures are available as optional accessories. Custom angular jigs can be fabricated upon request with dimensional specifications.

Is the software compliant with FDA 21 CFR Part 11 for regulated industries?

Yes—the software includes electronic signature workflows, audit trail generation, and data immutability controls required for pharmaceutical, biotech, and medical device quality systems.

Can the YL-S70 perform creep or stress-relaxation tests on adhesives?

Yes—using displacement-controlled hold phases and force decay monitoring, the system supports ISO 6721-1 creep compliance measurements when paired with a calibrated extensometer.

Does the system require annual recalibration by a certified lab?

Per ISO/IEC 17025 guidelines, we recommend annual third-party calibration with NIST-traceable standards; internal verification routines and zero-balance checks are accessible via administrator mode.

Are test methods exportable between different YL-S70 units in a multi-site facility?

Yes—method files (.ylm) are portable across identical firmware versions and retain all parameter sets, statistical definitions, and pass/fail criteria for global process harmonization.