Yuelian YL-S90 High-Precision Universal Testing Machine

Overview

The Yuelian YL-S90 is an electromechanical universal testing machine engineered for high-fidelity mechanical property evaluation of diverse materials across R&D laboratories, quality control departments, and contract testing facilities. It operates on a closed-loop force-displacement control architecture, utilizing a stepper motor coupled to a preloaded precision ball screw transmission system—ensuring minimal energy loss (<15%), repeatable positioning accuracy, and long-term mechanical stability. The system complies with fundamental principles defined in ISO 7500-1 (static calibration of uniaxial testing machines) and supports standardized test methods for tensile, compressive, peel, shear, tear, and loop tack measurements. Its modular mechanical design accommodates rapid fixture interchangeability, while its dual-mode operation—standalone via embedded firmware or PC-integrated via USB/RS-232—enables seamless deployment in both GLP-compliant environments and production floor settings.

Key Features

• High-resolution force measurement with 1/500,000 full-scale resolution and ±0.30% accuracy per ASTM E4 and GB/T 228.1 calibration protocols
• Computer-controlled speed regulation from 0.1 to 500 mm/min, with real-time adjustment via front-panel micro-tuning buttons
• Dual-stroke configurations (500 mm and 800 mm) supporting extended elongation testing for elastomers and films
• Quick-release fixture interface compatible with standard wedge, pneumatic, peel, shear, and loop tack grips
• Automatic return-to-initial-position function triggered upon test completion or specimen failure
• Multi-unit force display (N, kgf, lbf, g, ton, MPa) with programmable upper/lower limit triggers for pass/fail logic
• Integrated emergency stop, overload protection, and programmable hold tests (constant load or constant displacement)
• Front-panel single-button test initiation for operator efficiency and procedural consistency

Sample Compatibility & Compliance

The YL-S90 accommodates specimens ranging from thin polymer films and pressure-sensitive adhesives to metallic foils, textile yarns, nonwovens, leather strips, and laminated composites. Its 110 mm test width and configurable load cells (10 N to 1 kN) support both low-force peel evaluations (e.g., ASTM D3330 for 180° peel adhesion) and higher-load tensile characterization (e.g., GB/T 1040 for plastics). All hardware and firmware implementations align with national and international regulatory frameworks—including GB/T 2792 (peel strength of pressure-sensitive tapes), GB/T 12914 (tensile properties of paper and board), and ASTM D1876 (T-peel test for adhesive bonds). While the instrument itself does not carry CE or UL certification, its mechanical architecture and signal conditioning pathways meet electromagnetic compatibility (EMC) and safety thresholds required for laboratory-grade instrumentation under IEC 61000-4 series standards.

Software & Data Management

The YL-S90 ships with proprietary Windows-based acquisition and analysis software supporting real-time force–displacement curve plotting, statistical reporting (mean, SD, CV%), batch export to CSV/PDF/XLSX, and customizable report templates compliant with internal QA documentation workflows. Audit trail functionality logs user ID, timestamp, test parameters, and calibration events—supporting traceability requirements under GLP and ISO/IEC 17025. Data encryption and user-level access controls (administrator/operator modes) facilitate compliance with FDA 21 CFR Part 11 where electronic records are subject to regulatory review. Raw data files retain native 10 kHz sampling fidelity, enabling post-hoc reanalysis without interpolation artifacts. Software updates are delivered via secure HTTPS channel with SHA-256 signature verification.

Applications

• Peel strength quantification of medical device packaging seals (per ISO 8553 and ASTM F88)
• Tensile modulus and yield point determination for thermoplastic films used in food packaging
• Loop tack and quick stick assessment of acrylic and rubber-based pressure-sensitive adhesives
• Shear resistance evaluation of structural tapes and double-coated foams
• Compression behavior of foam gaskets and elastomeric sealing components
• Quality conformance testing of woven/nonwoven geotextiles per GB/T 15788
• Routine QC screening of composite laminates in aerospace prepreg manufacturing

FAQ

Does the YL-S90 support multi-step test programs (e.g., preconditioning → ramp → hold → recovery)?
Yes—via software-defined test sequences with up to 10 independent segments, each specifying target load/displacement, dwell time, and ramp rate.
Is third-party calibration certification included with shipment?
A factory-as-built calibration certificate (traceable to CNAS-accredited reference standards) is provided; ISO/IEC 17025-certified recalibration services are available upon request.
Can the system be integrated into a LIMS environment?
Yes—the software supports ODBC-compliant database output and RESTful API endpoints for bidirectional data exchange with major LIMS platforms.
What maintenance intervals are recommended for the ball screw and drive train?
Lubrication of the preloaded ball screw is recommended every 1,000 hours of operation; stepper motor and encoder alignment checks are advised annually.
Is the YL-S90 suitable for elevated temperature testing?
No—this model operates strictly at ambient laboratory conditions (10–35 °C, ≤80% RH); environmental chamber integration requires custom mechanical coupling and thermal isolation engineering.