Jiubin JB-125 Electronic Universal Testing Machine for Copper Alloys
| Brand | Jiubin |
|---|---|
| Origin | Shanghai, China |
| Model | JB-125 |
| Type | Electronic Universal Testing Machine |
| Instrument Category | Domestic |
| Distributor Type | General Distributor |
| Price | ¥32,000 |
Overview
The Jiubin JB-125 Electronic Universal Testing Machine is a precision-engineered mechanical testing system designed specifically for tensile, compression, bending, and peel testing of metallic materials—including copper alloys—under controlled quasi-static loading conditions. Based on servo-controlled electromechanical actuation and high-fidelity load-cell transduction, the system complies with fundamental principles outlined in ASTM E8/E8M (tensile testing of metallic materials) and ISO 6892-1 (metallic materials — tensile testing — part 1: method at room temperature). Its rigid four-column frame architecture, coupled with high-resolution displacement measurement via encoder-based crosshead positioning, ensures consistent force application and dimensional repeatability across test cycles. The machine is calibrated to meet Class 1 accuracy per ISO 7500-1, supporting reliable determination of yield strength (Rp0.2), ultimate tensile strength (Rm), elongation at break (A%), and modulus of elasticity (E) in copper-based alloys such as C11000 (electrolytic tough pitch copper), C26000 (cartridge brass), and C63000 (aluminum bronze).
Key Features
- Servo-motor-driven crosshead with adjustable speed range from 0.001 mm/min to 500 mm/min, enabling compliance with low-strain-rate creep assessments and high-speed rupture tests.
- Integrated high-accuracy load cell with dual-range capability (e.g., 10 kN / 50 kN options), offering resolution better than 1/100,000 of full scale and linearity ≤ ±0.5% of reading.
- Modular grip system compatible with wedge-action, pneumatic, and hydraulic clamping configurations—optimized for flat, round, and notched specimens per ASTM E8 geometry requirements.
- Real-time digital control interface with embedded microprocessor, supporting closed-loop strain, stress, and displacement control modes.
- Robust structural frame constructed from high-strength steel with preloaded linear guides, minimizing deflection under maximum rated load and ensuring long-term geometric stability.
- Compliance with electromagnetic compatibility (EMC) standards IEC 61326-1 and safety standard IEC 61000-6-2 for laboratory environments.
Sample Compatibility & Compliance
The JB-125 accommodates standard tensile specimens conforming to ASTM E8 Annex A1 (flat sheet/bar specimens), ISO 6892-1 Type 2 (12.5 mm gauge length), and GB/T 228.1–2021 (Chinese national standard for metallic tensile testing). Specimen widths up to 40 mm and thicknesses up to 12 mm are supported with appropriate jaw inserts. For copper alloys—characterized by high ductility and moderate yield-to-tensile ratios—the system’s adaptive grip pressure control prevents premature slippage or specimen necking outside the gauge section. All calibration certificates traceable to CNAS-accredited national metrology institutes; test reports generated include full audit trails compliant with GLP documentation practices.
Software & Data Management
The proprietary Jiubin TestMaster™ software (v4.2+) provides intuitive test setup, real-time curve visualization (load vs. extension, stress vs. strain), and automated parameter extraction per ASTM E8 and ISO 6892-1. Raw data export is available in CSV, Excel, and XML formats, supporting integration into LIMS platforms. Software features include user-level access control, electronic signature support, and configurable report templates aligned with internal QA protocols. While not FDA 21 CFR Part 11 certified out-of-the-box, the system supports optional validation packages—including IQ/OQ documentation, electronic audit trail activation, and password-protected method locking—for regulated environments requiring GMP-compliant mechanical testing workflows.
Applications
- Tensile property verification of wrought copper alloys used in electrical connectors, heat exchanger tubes, and busbar fabrication.
- Quality assurance testing of cold-worked and annealed copper strips per ASTM B134 and GB/T 2059.
- Comparative evaluation of alloy modifications (e.g., Sn, Ni, or Fe additions) on strength-ductility trade-offs in Cu-Zn and Cu-Al systems.
- Research-grade mechanical characterization in university metallurgy labs, including strain-hardening exponent (n-value) and plastic strain ratio (r-value) derivation.
- Supplier qualification testing for automotive and aerospace component manufacturers requiring traceable tensile data per AS9102 or PPAP Level 3 submission criteria.
FAQ
What is the maximum test force capacity of the JB-125?
The standard configuration supports up to 50 kN; optional upgrades extend capacity to 100 kN upon request.
Does the system support high-temperature tensile testing?
No—the JB-125 is configured for ambient-temperature testing only. High-temperature variants require external furnace integration and are available as custom-engineered solutions.
Is third-party calibration included with purchase?
A factory calibration certificate traceable to national standards is provided; on-site CNAS-accredited recalibration services can be arranged separately.
Can test methods be password-locked to prevent unauthorized modification?
Yes—TestMaster™ supports role-based access control with administrator-defined permissions for method editing, result deletion, and report generation.
What specimen standards does the machine comply with?
ASTM E8/E8M, ISO 6892-1, GB/T 228.1–2021, and JIS Z 2241 are fully supported through configurable test parameters and reporting templates.
