SINOTEST YNS-W Series Electro-Hydraulic Servo Wide-Plate Tensile Testing Machine
| Brand | SINOTEST |
|---|---|
| Origin | Jilin, China |
| Manufacturer | SINOTEST (OEM/ODM Capable) |
| Model | YNS-W |
| Max Test Force | 2000 kN |
| Force Measurement Range | 1–100% of Full Scale |
| Force Accuracy | ±0.5% FS |
| Test Stroke | 300–2000 mm |
| Displacement Resolution | 0.001 mm |
| Compliance | ISO 7500-1 Class I, ASTM E4, ASTM E8/E21, GB/T 228.1–2021 |
| Control Mode | Dual-Channel Closed-Loop Servo Hydraulic + PC-Based Digital Control |
| Loading Modes | Load, Displacement, Strain, Stress, and Crosshead Speed Control with Seamless In-Test Switching |
| Safety Features | Dual-Limit Protection (Load/Position), Fracture-Autostop, Full-Enclosure Guard with Impact-Resistant Polycarbonate Viewing Window |
| Data Acquisition | 10 kHz Sampling Rate, 5 Synchronized Channels (Load, Displacement, Extensometer, Stress, Strain) |
Overview
The SINOTEST YNS-W Series Electro-Hydraulic Servo Wide-Plate Tensile Testing Machine is a high-capacity, precision-engineered mechanical testing system designed for the static tensile characterization of extended-length, high-strength structural specimens—including steel wire ropes, power transmission chains, insulated cables, busbars, composite insulators, and wide-format metallic plates up to 2 m in gage length. Built upon a rigid four-column load frame with servo-controlled hydraulic actuation, the system delivers stable, low-drift force application across its full 2000 kN capacity, conforming to ISO 7500-1 Class I accuracy requirements for force measurement. Its dual-closed-loop architecture enables simultaneous real-time regulation of load, displacement, and strain—critical for evaluating yield behavior, plastic flow, necking onset, and fracture toughness in ductile and quasi-brittle materials under controlled strain rates (1–300 mm/min). The machine’s modular design accommodates specimen lengths from 1.7 m to 14 m (adjustable via motorized crosshead positioning), making it uniquely suited for full-scale validation of utility-grade conductors, offshore mooring lines, and aerospace-grade fasteners where conventional benchtop testers are physically constrained.
Key Features
- Electro-hydraulic servo actuation with high-bandwidth pressure control, ensuring <±0.5% FS force linearity and repeatability over 10,000 cycles.
- Triple-sensor measurement architecture: integrated load cell (2000 kN capacity), linear variable differential transformer (LVDT) for crosshead displacement (resolution: 0.001 mm), and optional clip-on or video extensometer for true strain tracking.
- Full-enclosure safety housing with interlocked polycarbonate viewing panels, meeting EN ISO 13857 clearance requirements and preventing projectile hazard during high-energy fracture events.
- Intelligent auto-stop logic: programmable load/position limits, real-time fracture detection via derivative-based load drop thresholding, and automatic emergency depressurization upon specimen rupture.
- Manual micro-adjustment console for precise pre-test alignment—enabling sub-millimeter crosshead positioning without software intervention.
- Multi-mode closed-loop control: seamless in-test switching among load-, displacement-, strain-, stress-, and speed-controlled profiles without data interruption or control loop reset.
Sample Compatibility & Compliance
The YNS-W supports standardized test geometries per ASTM E8/E21 (metallic materials), ASTM D3039 (polymer matrix composites), IEC 61238-1 (compression connectors), and GB/T 228.1–2021 (Chinese metallic tensile standard). Its adjustable grip span (1700–14000 mm) and 600 mm piston stroke accommodate both short calibration coupons and full-section conductor samples. All force transducers are factory-calibrated traceable to NIM (National Institute of Metrology, China) and certified to ISO/IEC 17025. System compliance includes: ISO 7500-1:2018 (static force verification), ISO 5893:2016 (displacement and speed accuracy), and EN 61000-6-3 (EMC immunity for industrial environments). Optional audit-trail-enabled firmware supports 21 CFR Part 11-compliant electronic records for GLP/GMP-regulated labs.
Software & Data Management
The embedded Windows-based TestMaster Pro v5.2 software provides real-time synchronized acquisition across five channels at 10 kHz, with configurable filtering (Bessel, FIR), digital smoothing, and automatic feature extraction—including proportional limit, upper/lower yield points, ultimate tensile strength (UTS), uniform elongation (Ag), total elongation (At), and reduction of area (Z). Raw data exports to CSV, XML, and universal MDF4 formats; report templates comply with ASTM E691 statistical analysis requirements. Role-based user access (Operator, Technician, Administrator) enforces parameter lockdowns and revision-controlled method storage. All test sessions generate immutable metadata logs—including calibration history, environmental timestamp, operator ID, and hardware configuration hash—for full traceability in third-party audits.
Applications
- Mechanical qualification of overhead transmission line components (ACSR, AAAC, ACCC conductors) per IEEE 1138 and IEC 61089.
- Tensile validation of chain slings, lifting shackles, and marine mooring systems under ISO 1704, DNV-RP-F105, and API RP 2SK.
- Quality control of extruded aluminum busbars and copper grounding strips used in substations and EV battery enclosures.
- Research-grade deformation mapping of wide-gauge steel plates subjected to biaxial constraint conditions using DIC-compatible mounting interfaces.
- Calibration reference for secondary force standards in national metrology institutes and accredited testing laboratories.
FAQ
What standards does the YNS-W comply with for force calibration?
It meets ISO 7500-1:2018 Class I accuracy requirements, with factory calibration traceable to NIM-certified deadweight machines.
Can the system be configured for high-temperature tensile testing?
Yes—optional furnace integration (up to 1200 °C) with water-cooled load train and ceramic grips is available under custom engineering agreement.
Is remote diagnostics and firmware updates supported?
Yes—the system includes embedded Ethernet port with TLS-secured remote access, enabling predictive maintenance alerts and over-the-air firmware patches compliant with IEC 62443-4-2.
Does the software support automated pass/fail evaluation against user-defined limits?
Yes—threshold-based logic engine evaluates UTS, yield ratio, elongation, and modulus against stored specification windows and generates ISO/IEC 17025-compliant conformity statements.
What is the warranty coverage and service response time?
Standard 24-month parts-and-labor warranty; priority on-site technical support within 72 hours in major industrial hubs across Asia, Europe, and North America.
