Yuelian YL-S70 Computer-Controlled Peel & Tensile Testing Machine (Compliant with GB/T 2792)

Overview

The Yuelian YL-S70 is a high-precision, computer-controlled electromechanical testing system engineered for static mechanical property evaluation in R&D laboratories and quality control environments. Designed in strict compliance with Chinese national standard GB/T 2792—“Peel Strength Test Method for Adhesive Tapes”—this machine also supports a broad spectrum of standardized tensile, compression, bending, shear, tear, puncture, and cyclic loading protocols. Its measurement principle relies on closed-loop servo-controlled displacement actuation coupled with high-fidelity load cell feedback, enabling accurate quantification of force, displacement, strain, and time-dependent response under controlled kinematic conditions. The system employs a precision-ground ball screw transmission mechanism and a rigid aluminum-alloy frame with anodized surface treatment, ensuring structural stability, minimal deflection, and long-term repeatability across thousands of test cycles.

Key Features

• Modular dual-range load cell configuration (e.g., 10 N / 5 kN), allowing seamless switching between micro- and macro-scale mechanical testing without recalibration.
• Real-time multi-curve visualization: simultaneous display of force–displacement, force–time, displacement–time, and stress–strain plots during active testing; all curves support zoom, pan, crosshair cursor, and point extraction.
• Advanced test sequencing engine supporting up to 120 automatic data points per test, 40 manual annotations, and seven user-defined analysis intervals—enabling granular post-test segmentation for yield detection, plateau identification, or fracture energy calculation.
• Comprehensive statistical output including maximum, minimum, mean, trimmed mean (excluding top/bottom outliers), median, standard deviation, population standard deviation, and process capability index (Cpk), fully traceable and exportable for GLP/GMP documentation.
• Configurable control modes: constant rate of extension (CRE), constant rate of force application, constant displacement, constant stress, constant strain, and their respective rate-controlled variants—ideal for simulating real-world service conditions such as adhesive debonding, packaging seal integrity, or medical device suture pullout.
• Hardware-level safety architecture: integrated overload cutoff, emergency stop button, specimen rupture auto-stop, upper/lower limit position interlocks, and dual-stage over-travel protection via mechanical limit switches and software-defined boundaries.

Sample Compatibility & Compliance

The YL-S70 accommodates a wide range of specimen geometries and material classes—including pressure-sensitive adhesives, laminated films, coated papers, textile composites, polymer foams, elastomeric seals, and thin-gauge metallic foils—via its quick-release fixture interface and Ø140 mm test chamber. Standard test configurations align with ISO 8510-2 (peel adhesion), ASTM D903 (peel strength of adhesive bonds), ASTM D638 (tensile properties of plastics), ASTM D790 (flexural properties), and GB/T 2792 (adhesive tape peel). While not certified to ISO/IEC 17025 or FDA 21 CFR Part 11 out-of-the-box, the system’s audit-ready data logging, timestamped operator ID tagging, and immutable raw data storage (in .csv and proprietary binary formats) support internal validation protocols required for ISO 9001, IATF 16949, and pharmaceutical QC workflows.

Software & Data Management

Bundled with Yuelian’s proprietary Windows-based test control suite, the YL-S70 provides full local or networked operation via RS-232 interface (cable included). Software features include method templates compliant with common international standards, password-protected user roles (operator, supervisor, administrator), electronic signature support, and configurable report generation with embedded test curves, metadata, and statistical summaries. Raw data files are stored with checksum verification and retain full acquisition fidelity (2000 Hz sampling). Export options include Excel-compatible CSV, PDF reports with watermarking, and image exports (PNG/JPEG) of curve overlays for comparative analysis. All software updates and calibration utilities are distributed through secure vendor-managed channels with version-controlled release notes.

Applications

• Quantitative peel strength assessment of medical tape, surgical drapes, transdermal patches, and wound closure strips per ISO 25537 and USP <1207>.
• Tensile modulus and elongation-at-break characterization of biodegradable films used in food packaging and agricultural mulch.
• Cyclic compression endurance testing of polyurethane foam gaskets in automotive HVAC systems.
• Three-point flexural stiffness evaluation of printed circuit board substrates and flexible electronics laminates.
• Puncture resistance validation of protective gloves (EN 388), footwear soles (ISO 20344), and orthopedic implant packaging.
• Shear bond strength verification of dental composite resins bonded to enamel or ceramic restorations.

FAQ

Is the YL-S70 compliant with ASTM or ISO standards?
Yes—the hardware and software architecture supports execution of ASTM D903, D638, D790, ISO 8510-2, and GB/T 2792 test methods. Users must configure test parameters (grip spacing, speed, sample dimensions) per the relevant standard’s procedural requirements.
Can the system be integrated into a LIMS or MES environment?
The RS-232 interface enables basic ASCII command-driven automation. For deeper integration (e.g., HL7, OPC UA, or REST API), third-party middleware or custom driver development is recommended, as native enterprise protocol support is not included.
What calibration documentation is provided?
Each unit ships with a factory calibration certificate traceable to CNAS-accredited reference standards. Annual recalibration is advised; Yuelian offers accredited on-site or return-to-factory services with NIST-traceable certificates.
Does the software meet FDA 21 CFR Part 11 requirements?
Out-of-the-box, it provides audit trail logs, electronic signatures, and data immutability—but full Part 11 compliance requires site-specific validation (IQ/OQ/PQ), role-based access policy enforcement, and electronic record retention configuration, which must be implemented by the end user.
Are fixtures and grips included with the base system?
No—standard wedge-action tensile grips, peel arms, and bend fixtures are optional accessories. A full catalog of ISO- and ASTM-compliant tooling is available, including pneumatic clamps, environmental chambers (−40°C to +150°C), and video extensometers for non-contact strain measurement.