Yuelian YL-S70 Advanced Computer-Controlled Tensile Testing Machine

Overview

The Yuelian YL-S70 is a high-precision, computer-controlled electromechanical tensile testing machine engineered for rigorous mechanical property characterization across R&D laboratories, quality control departments, and accredited testing facilities. Based on the fundamental principle of uniaxial force application under controlled displacement or load rate, the system employs a high-torque AC servo motor coupled with a preloaded precision ball screw transmission mechanism to deliver exceptional motion fidelity and repeatability. Its dual-mode closed-loop architecture supports both force-controlled and displacement-controlled test protocols, enabling compliance with standardized mechanical testing methods defined in ASTM E8/E8M (tension), ASTM D638 (plastics), ISO 6892-1 (metallic materials), ISO 527 (polymeric films), and GB/T 228.1 (Chinese national standard). The machine’s rigid aluminum extrusion frame—surface-treated with sandblasting and anodized bright silver finish—and ABS polymer housing provide long-term dimensional stability and resistance to environmental degradation during daily operation.

Key Features

• High-resolution force measurement system with selectable load cell capacities (10 N, 20 N, 50 N, 100 N, 200 N, 500 N, 1 kN, 2 kN, 5 kN), supporting dual-capacity configuration for extended dynamic range without recalibration.
• Displacement resolution of 1/500,000 mm (0.002 µm) and force resolution of 1/500,000 FS, meeting ISO 7500-1 Class 0.5 accuracy requirements for force transducers.
• Real-time data acquisition at up to 2000 samples per second, ensuring faithful capture of transient mechanical events such as yield onset, necking propagation, or brittle fracture.
• Intuitive software interface supporting 7 programmable test segments, 40 manual cursor points, and 120 automatic sampling points per curve; enables multi-step cyclic loading, hold-and-relax sequences, and ramp-hold-ramp profiles.
• Comprehensive curve visualization: simultaneous display of force–displacement, force–time, displacement–time, and stress–strain plots with zoom, pan, crosshair cursor, and point extraction tools.
• Integrated hardware safety: overload protection, emergency stop button, upper/lower travel limit switches, automatic rupture detection, and programmable return-to-start functionality.
• Modular quick-connect fixture interface allows tool-free replacement of grips and fixtures—including wedge-action clamps, pneumatic jaws, bending supports, peel fixtures, and puncture probes—for rapid method reconfiguration.

Sample Compatibility & Compliance

The YL-S70 accommodates a broad spectrum of specimen geometries and material classes—including metallic wires and sheets, polymer films and molded parts, elastomeric foams, textile yarns, adhesive tapes, paperboard, footwear components, and biomedical sutures. Its Ø140 mm test chamber and 450 mm effective stroke support ASTM D882 (thin plastic film), ASTM D3045 (thermal aging tensile), ISO 179 (Charpy impact pre-test conditioning), and EN 13924 (adhesive bond strength). All test routines adhere to GLP-compliant audit trails, with timestamped raw data logging, user authentication, and electronic signature support compatible with FDA 21 CFR Part 11 readiness when deployed with validated software configurations.

Software & Data Management

The proprietary Windows-based control and analysis suite provides full IEC 62304-aligned software architecture. It supports over 20 international unit systems—including SI, imperial, and hybrid combinations—for force (N, kN, lbf, kgf), displacement (mm, inch, µm), and stress (MPa, psi, kPa). Statistical post-processing includes calculation of ultimate tensile strength, yield strength (0.2% offset), elongation at break, modulus of elasticity, Poisson’s ratio, toughness (area under curve), CPK capability indices, standard deviation, median, trimmed mean, and confidence intervals. Historical datasets can be overlaid for comparative trend analysis across batches, suppliers, or timepoints. Export formats include CSV, XLSX, PDF reports (with embedded graphs and metadata), and XML for LIMS integration.

Applications

• Mechanical validation of thermoplastic and thermoset composites per ASTM D638 and ISO 527-2.
• Quality assurance of medical device packaging integrity (peel strength, seal burst pressure).
• Characterization of viscoelastic behavior in polyurethane foams under compression cycling (ISO 3386-1).
• Tensile fatigue testing of elastomeric components using programmable multi-cycle waveforms.
• Shoe sole puncture resistance evaluation aligned with ISO 20344 and EN ISO 20345.
• Cardboard box compression endurance and stacking simulation (ASTM D642).
• Spring force–deflection profiling with hysteresis loop analysis.
• Adhesive tape peel and shear strength quantification per PSTC-101 and AFERA 4001.

FAQ

Does the YL-S70 comply with ISO/IEC 17025 calibration traceability requirements?
Yes—when paired with certified reference load cells and displacement standards, the system supports documented metrological traceability to NIM (National Institute of Metrology, China) or equivalent national metrology institutes.
Can the software generate audit-ready test reports compliant with 21 CFR Part 11?
The software supports electronic signatures, role-based access control, and immutable audit logs; full Part 11 compliance requires site-specific validation documentation and IT infrastructure alignment.
Is it possible to integrate the YL-S70 into an existing MES or LIMS environment?
Yes—via RS-232 serial protocol or optional Ethernet module, the system exports structured data in CSV/XML format for direct ingestion into laboratory information management systems.
What is the recommended maintenance schedule for long-term accuracy retention?
We recommend annual verification of force and displacement transducers against certified standards, biannual lubrication of the ball screw assembly, and quarterly inspection of grip alignment and sensor cabling integrity.
Are third-party夹具 (fixtures) supported via standard mechanical interfaces?
The machine uses ISO 2768-mK tolerance-compliant mounting plates and M6 threaded holes on the crosshead and base; custom fixtures from vendors such as Instron, Zwick, or Tinius Olsen may be adapted with minor bracket modification.