Jiubin JB-126D Electronic Universal Testing Machine

Overview

The Jiubin JB-126D Electronic Universal Testing Machine is a precision-engineered mechanical testing system designed for static tensile, compression, bending, and peel testing of metallic fasteners—including screws, bolts, studs, and threaded rods—as well as polymer-based fastening components and composite inserts. It operates on the principle of controlled force application via a high-stiffness load frame, servo-controlled AC motor-driven crosshead, and closed-loop digital feedback control. The system conforms to fundamental mechanical testing standards including ISO 6892-1 (tensile testing of metallic materials), ASTM F606 (mechanical testing of externally and internally threaded fasteners), and GB/T 3098.1 (mechanical properties of fasteners – bolts, screws and studs). Its modular architecture supports interchangeable load cells (typically 1 kN to 50 kN range), extensometers, and fixture kits optimized for ISO-standard screw geometries and grip configurations.

Key Features

• High-precision dual-column load frame with rigid aluminum alloy construction and preloaded ball-screw transmission for minimal axial deflection and repeatable crosshead positioning.
• Digital servo control system enabling programmable test profiles: constant rate of extension (CRE), constant rate of loading (CRL), or step-load sequences per ASTM E4 and ISO 7500-1 calibration requirements.
• Integrated high-resolution load cell (±0.5% full-scale accuracy, Class 1 per ISO 7500-1) with real-time dynamic compensation for thermal drift and mechanical hysteresis.
• Automated data acquisition at up to 100 Hz sampling rate, synchronized with displacement and time stamps, supporting traceable audit trails for GLP/GMP environments.
• Quick-change wedge-action grips with serrated hardened steel jaws and adjustable clamping pressure—compatible with screw diameters from M2 to M30 and standardized thread engagement lengths per ISO 898-1.
• Front-panel LCD interface with intuitive menu navigation, plus optional Ethernet/USB connectivity for remote operation and firmware updates.

Sample Compatibility & Compliance

The JB-126D accommodates standard fastener specimens per ISO 898-1, ISO 3506-1, ASTM A307, and DIN 267-10 specifications. Fixture options include axial tension grips with internal thread adaptors, torsion-resistant anti-rotation collars, and dedicated shear test assemblies for head-bearing strength evaluation. All mechanical and software components are validated for compliance with ISO/IEC 17025:2017 (general requirements for competence of testing and calibration laboratories) and support documentation required for FDA-regulated device component validation (e.g., orthopedic implant screws, medical-grade fasteners). System calibration certificates are issued with NIST-traceable reference standards and include uncertainty budgets per ISO/IEC 17025 Annex A.

Software & Data Management

The bundled Jiubin TestSuite v3.2 software provides ISO-compliant test method templates, automatic yield point detection (0.2% offset method), ultimate tensile strength (UTS), elongation at break, and proof load verification reporting. Raw data export is supported in CSV, XML, and PDF formats—with embedded metadata (operator ID, timestamp, environmental conditions, calibration status). Audit trail functionality meets FDA 21 CFR Part 11 requirements for electronic records and signatures, including user-level access control, password-protected method editing, and immutable log files for all test executions and parameter modifications.

Applications

• Tensile strength and yield behavior characterization of structural screws used in automotive chassis assembly (e.g., BYD, Geely, Chery, FAW-Volkswagen).
• Mechanical validation of pharmaceutical packaging closure screws under accelerated aging conditions (e.g., Kangmei Pharmaceutical, Poly Pharmaceutical).
• Quality control of high-strength fasteners in aerospace-grade composites and battery module enclosures (e.g., BGI Beijing Graphene Institute, Ningbo Lithium Battery OEMs).
• Research-grade fatigue precursor analysis for stainless-steel and titanium alloy screws in biomedical applications (e.g., Tsinghua University, Fudan University, Chinese Academy of Sciences Guangzhou Branch).
• Third-party certification testing per CNAS-accredited protocols at CTI, Huace Testing, and Wuxi Municipal Product Quality Supervision & Inspection Institute.

FAQ

What fastener standards does the JB-126D support out-of-the-box?

The system includes pre-configured test methods for ISO 898-1, ASTM F606, GB/T 3098.1, and DIN 267-10, with customizable parameters for non-standard geometries.
Is the load cell calibration traceable to national metrology institutes?

Yes—each unit ships with a factory calibration certificate traceable to NIM (National Institute of Metrology, China), with optional UKAS or DAkkS-certified recalibration services available.
Can the system integrate with LIMS or MES platforms?

Via TCP/IP API and OPC UA protocol support, the JB-126D enables bidirectional data exchange with laboratory information management systems (LIMS) and manufacturing execution systems (MES) for automated report ingestion and QC workflow synchronization.
Does the software comply with 21 CFR Part 11 for regulated industries?

Yes—TestSuite v3.2 implements full electronic signature enforcement, role-based permissions, and immutable audit logs meeting FDA 21 CFR Part 11 Subpart B requirements.
What is the maximum recommended screw length for axial tension testing?

The standard configuration supports specimens up to 300 mm gauge length; extended travel crossheads (optional) accommodate lengths up to 600 mm while maintaining ±0.5% strain measurement fidelity.