Jiubin JB-117B Brass Tensile Testing Machine – Electronic Universal Testing System

Overview

The Jiubin JB-117B Brass Tensile Testing Machine is an electronically actuated universal testing system engineered for precise mechanical characterization of copper-based alloys—including pure copper, brass (Cu–Zn), and bronze—under uniaxial static loading conditions. Designed in accordance with fundamental principles of materials mechanics, the system applies controlled axial force via a servo-controlled electromechanical drive while simultaneously measuring displacement and load to generate stress–strain curves. Its architecture supports standardized tensile testing per ASTM E8/E8M (Metallic Materials – Tension Testing) and ISO 6892-1 (Metallic Materials – Tensile Testing – Part 1: Method of Test at Room Temperature), enabling reliable determination of yield strength (Rp0.2), ultimate tensile strength (Rm), elongation at break (A50 mm or A gauge), and reduction of area (Z). The machine is calibrated traceably to national metrological standards and integrates high-stiffness load frame design with low-noise, high-resolution load cell feedback (typically ±0.5% FS accuracy) and encoder-based displacement measurement (resolution ≤ 0.1 µm).

Key Features

• Electromechanical actuation system with closed-loop PID control for consistent crosshead speed regulation (0.001–500 mm/min, adjustable in 0.001 mm/min increments)
• High-rigidity dual-column load frame with precision-ground guide rails and preloaded ball screws for minimal deflection under load
• Integrated digital load cell (capacity range: 1 kN to 100 kN, configurable per application) featuring temperature-compensated strain gauge technology
• Automatic extensometer interface (optional) supporting clip-on or non-contact video-based strain measurement per ASTM E83 Class B2 requirements
• Real-time data acquisition at ≥ 100 Hz sampling rate, synchronized with load, displacement, and optional environmental inputs (e.g., extensometer, temperature sensor)
• Compliance with CE machinery directive (2006/42/EC) and electromagnetic compatibility (EMC) standard EN 61326-1

Sample Compatibility & Compliance

The JB-117B accommodates standardized tensile specimens per ISO 6892-1 Annex A (flat and round bar geometries), including ASTM E8 subsize coupons (e.g., 12.5 mm gauge length, 3 mm width) commonly used for brass strip, rod, and drawn wire. It supports both manual and pneumatic wedge-type grips with serrated or soft-faced jaw inserts to prevent specimen slippage or premature necking. For quality-critical environments, the system supports audit-ready operation under GLP and GMP frameworks: test method parameters are password-protected, all test records include electronic signatures, and raw data files retain immutable timestamps and operator IDs—enabling compliance with FDA 21 CFR Part 11 when paired with validated software configuration.

Software & Data Management

The proprietary Jiubin TestMaster™ software (v4.2+) provides intuitive test setup, real-time curve visualization, and automated report generation in PDF/Excel formats compliant with ISO/IEC 17025 documentation requirements. All test sequences—including preload, zeroing, rate switching, and fracture detection—are programmable and repeatable. Data export includes full waveform traces (load vs. displacement, engineering stress vs. strain, true stress vs. true strain), statistical summaries across batches, and comparative overlays. Software validation documentation (IQ/OQ protocols) is available upon request for regulated laboratories. Raw binary data (.jtd) is stored with metadata (machine ID, calibration certificate expiry, environmental log), ensuring full traceability from measurement to final report.

Applications

• Quality assurance of brass components in automotive radiator cores, electrical connectors, and plumbing fittings
• R&D evaluation of Cu–Zn alloy formulations for improved ductility-to-strength balance
• Process validation of cold-drawing, annealing, and tempering treatments on brass strips and tubes
• Third-party certification testing for GB/T 228.1–2021 (Chinese national standard equivalent to ISO 6892-1)
• Educational use in university materials science labs for hands-on instruction in elastic/plastic deformation behavior
• Supplier qualification testing per IATF 16949 clause 8.4.2.2 (verification of external provider test reports)

FAQ

What ASTM and ISO standards does the JB-117B support out of the box?

The system is preconfigured for ASTM E8/E8M and ISO 6892-1; custom test methods can be defined using the software’s template editor.
Is extensometer integration mandatory for elongation measurement?

No—gauge length elongation can be derived from crosshead displacement for non-critical applications, but extensometer use is required for accurate A50 mm or uniform elongation per ISO 6892-1 Clause 9.2.
Can the system be integrated into a laboratory LIMS environment?

Yes—via CSV/XML export, OPC UA server option (add-on), or direct database write (SQL Server/PostgreSQL) with appropriate IT security review.
What maintenance intervals are recommended for long-term accuracy?

Annual verification of load cell linearity and displacement encoder calibration is advised; grip wear inspection every 500 test cycles.
Does the JB-117B meet requirements for ISO/IEC 17025 accredited testing labs?

Yes—when operated with documented procedures, certified calibration certificates, and version-controlled software, it fulfills Clause 6.4 (Equipment) and 6.6 (Measurement Traceability) requirements.