JB–117A Universal Testing Machine for PVC, Plastics, and Elastomers

Overview

The JB–117A Universal Testing Machine is an electromechanical static tensile-compressive testing system engineered for high-reproducibility mechanical characterization of polymeric and elastomeric materials. Designed in accordance with fundamental principles of uniaxial quasi-static loading, it applies controlled force via a precision ball-screw-driven crosshead actuated by a brushless servo motor. Force measurement is achieved through a calibrated load cell traceable to national metrological standards, while axial displacement is resolved using a high-resolution optical encoder integrated into the drive train. The system operates within the framework of standard test methods for plastics (ASTM D638), vulcanized rubber (ASTM D412), flexible foams (ASTM D3574), and general metallic and nonmetallic specimens (ISO 6892-1, GB/T 16491). Its architecture supports both load-controlled and displacement-controlled test modes, enabling full stress–strain curve acquisition—including yield point, tensile strength, elongation at break, modulus (e.g., secant modulus at 100% strain), and permanent set evaluation for cyclic loading protocols.

Key Features

• Electromechanical actuation with closed-loop PID control for precise force and displacement regulation
• Load capacity range: 0.5 kN to 50 kN (configurable per model variant; standard JB–117A rated at 10 kN)
• Testing speed range: 0.001–500 mm/min, programmable in logarithmic or linear ramp profiles
• Integrated digital load cell with ±0.5% full-scale accuracy and thermal drift compensation
• Modular grip system supporting pneumatic, wedge-action, and hydraulic clamping options for flat, round, and irregular specimens
• Real-time data acquisition at ≥1 kHz sampling rate, synchronized with position and load channels
• Robust cast-iron frame with dual-column vertical alignment and preloaded linear guide rails for minimal deflection under load
• Compliance with mechanical safety standards including EN ISO 12100 and GB 5226.1 for industrial machinery

Sample Compatibility & Compliance

The JB–117A accommodates standardized specimen geometries defined in ASTM D638 Type I–V, ASTM D412 Die C, and ISO 37 Type 2 dumbbells, as well as custom-cut strips, films, cords, and molded parts up to 300 mm gauge length. It supports ambient temperature testing (10–35°C) and optional environmental chamber integration (−70°C to +250°C) for thermo-mechanical profiling. All test procedures align with regulatory expectations for quality control laboratories operating under GLP or GMP frameworks. Data integrity is maintained through audit-trail-enabled software compliant with FDA 21 CFR Part 11 requirements when configured with electronic signatures and user access controls. Certificates of conformance are provided per batch against GB/T 16491 verification protocol, including repeatability and linearity validation reports.

Software & Data Management

The system is supplied with proprietary PC-based testing software compatible with Windows 10/11 (64-bit), offering intuitive test method configuration, real-time graphing (stress–strain, load–displacement, creep/recovery), and automated report generation in PDF, Excel, and XML formats. Software modules include multi-step test sequencing, modulus calculation per ISO 527-2 Annex B, Poisson’s ratio estimation via dual-axis extensometry interface, and statistical analysis across replicate specimens. Raw data files are stored in vendor-neutral .csv and .tdms formats for third-party post-processing in MATLAB, Python (NumPy/Pandas), or Minitab. Optional API integration enables direct linkage to LIMS platforms (e.g., Thermo Fisher SampleManager, LabVantage) via RESTful web services.

Applications

This instrument serves core mechanical property evaluation needs across R&D, QC, and certification labs. Typical use cases include tensile strength and elongation verification of PVC compound batches prior to extrusion; modulus assessment of thermoplastic elastomer (TPE) formulations for automotive sealing systems; tear resistance benchmarking of silicone rubber gaskets used in medical device housings; adhesion strength testing of laminated polymer films in packaging validation; and fatigue life screening of rubber-to-metal bonded components under low-cycle loading. Academic users apply it for structure–property correlation studies—e.g., correlating plasticizer content in flexible PVC with yield behavior—or validating constitutive models for finite element simulation inputs.

FAQ

What standards does the JB–117A support out-of-the-box?
It natively implements test sequences for ASTM D638, ASTM D412, ISO 6892-1, ISO 37, GB/T 1040, and GB/T 528, with editable method templates for custom protocols.
Is extensometer compatibility available?
Yes—both clip-on mechanical and non-contact video extensometers (with sub-pixel resolution) can be integrated via USB or analog voltage input interfaces.
Can the system be validated for ISO/IEC 17025 accredited testing?
Yes—the load cell calibration certificate includes uncertainty budgeting per ISO/IEC 17025:2017 Annex A.3, and the machine’s mechanical verification report satisfies ISO 7500-1 Class 1 requirements.
What maintenance intervals are recommended?
Lubrication of lead screws and inspection of grip jaw inserts every 500 operational hours; annual recalibration of load cell and position encoder is advised.
Does the software support multi-language UI?
English and Simplified Chinese interfaces are included; additional language packs (German, Japanese, Korean) are available upon request.