Jiubin JB-117 Universal Testing Machine for Reinforcing Steel Bars

Overview

The Jiubin JB-117 Universal Testing Machine is a precision-engineered electromechanical system designed specifically for mechanical property evaluation of reinforcing steel bars and structural metallic materials. It operates on the principle of controlled uniaxial force application—employing a high-rigidity welded frame, dual-acting piston actuation (in hydraulic variants), and load cell-based force transduction—to deliver repeatable tensile, compressive, and bending tests in accordance with internationally recognized metallurgical test standards. Unlike legacy analog systems, the JB-117 integrates digital load measurement, real-time curve plotting, and automated data processing to meet modern laboratory requirements for traceability, reproducibility, and regulatory alignment. Its architecture supports standardized specimen geometry per ISO 6892-1 and ASTM E8/E8M, making it suitable for quality control laboratories in construction materials certification, precast concrete manufacturing, and infrastructure inspection agencies.

Key Features

• Modular load capacity options: 100 kN, 300 kN, 600 kN, and 1000 kN configurations—each calibrated to ISO 7500-1 Class 0.5 accuracy and verified per JJG 475–2008 metrological procedures.
• High-stiffness monolithic steel frame with reinforced crosshead guidance ensures minimal deflection (<0.05 mm under full load), critical for accurate modulus-of-elasticity determination.
• Dual-mode operation: intuitive LCD touchscreen interface for rapid setup and single-test execution; optional PC-based English-language software for advanced test sequencing, multi-curve overlay, and batch reporting.
• Adjustable test space: vertical travel range configurable via mechanical stops to accommodate standard rebar lengths (e.g., 500 mm gauge length per GB/T 228.1–2021) and non-standard specimens up to 1200 mm.
• Clamping system: manual wedge-type grips as standard—designed for ribbed deformed bars (HRB400, HRB500, etc.) with self-aligning jaw faces; hydraulic clamping available for high-throughput environments requiring <5 s cycle time.
• Integrated data handling: automatic calculation of yield strength (Rp0.2), ultimate tensile strength (Rm), elongation (Agt, A5), reduction of area (Z), and Young’s modulus (E); export formats include CSV, PDF, and XML for LIMS integration.

Sample Compatibility & Compliance

The JB-117 accommodates common reinforcing steel geometries—including hot-rolled deformed bars (φ6–φ40 mm), plain round bars, stainless steel rebars (e.g., ASTM A955), and ductile iron reinforcements—as defined in GB/T 1499.2–2018 and EN 10080. Specimen preparation follows strict dimensional tolerances per ISO 6892-1 Annex A. The system is fully compliant with national and international test method standards: GB/T 228.1–2021 (equivalent to ISO 6892-1:2019), GB/T 7314–2017 (compression), GB/T 232–2021 (bending), and GB/T 16825.1–2008 (verification of force measurement systems). Calibration certificates are traceable to CNAS-accredited reference standards, supporting GLP-compliant audit trails and FDA 21 CFR Part 11–ready electronic signatures when paired with validated software modules.

Software & Data Management

The proprietary English-language testing software provides role-based access control, audit-log generation (user actions, parameter changes, calibration events), and timestamped raw data archiving. All test results include metadata such as environmental temperature, operator ID, machine serial number, and calibration expiry date. Reports conform to ISO/IEC 17025 documentation requirements and may be exported with embedded digital signatures for third-party verification. The software supports automated pass/fail evaluation against preset limits (e.g., Rm ≥ 540 MPa for HRB400), customizable report templates (ASTM, GB, EN), and direct export to enterprise QA databases via ODBC or REST API.

Applications

• Quality assurance of reinforcing steel supplied to civil engineering projects—verifying conformance to GB/T 1499.2, ASTM A615/A615M, and BS 4449.
• Mechanical characterization of welded rebar splices and mechanical couplers per GB/T 28900–2012.
• Research-grade tensile behavior analysis under elevated temperatures (when coupled with environmental chamber).
• Compression testing of concrete-filled steel tube (CFST) specimens and grouted sleeve connections.
• Bending ductility assessment for seismic-resistant reinforcement design validation.
• Third-party certification testing for CCC, CE marking, and ISO 9001 surveillance audits.

FAQ

What standards does the JB-117 support for tensile testing of reinforcing steel?
GB/T 228.1–2021, ISO 6892-1:2019, ASTM E8/E8M, and EN ISO 6892-1.
Can the machine perform compression tests on concrete cylinders?
Yes—when equipped with flat platens and aligned per GB/T 7314–2017, it supports compression testing of cylindrical concrete specimens up to Ø300 × 600 mm.
Is the software compliant with 21 CFR Part 11 requirements?
The validated software package includes electronic signatures, audit trails, and user authentication—fully deployable in regulated GMP/GLP environments upon site-specific qualification.
What is the typical delivery lead time for a 600 kN configuration?
Standard delivery is 8–10 weeks from order confirmation, including factory calibration and documentation handover.
Does Jiubin provide installation and operator training?
Yes—on-site commissioning, mechanical and software training, and ISO/IEC 17025-aligned operational SOP development are included in the turnkey service package.