Jianhu JH-8000 Series Universal Tensile Testing Machine

Overview

The Jianhu JH-8000 Series Universal Tensile Testing Machine is an electromechanical force-testing system engineered for static mechanical characterization of materials under uniaxial tension, compression, flexure, peel, shear, and elongation. Based on the fundamental principle of controlled displacement-driven loading—where a precision-controlled crosshead applies defined strain rates to standardized specimens—the system delivers repeatable force-displacement data traceable to SI units via calibrated load cells. Designed for compliance with ASTM E4, ASTM E8/E8M, ISO 6892-1, ISO 7500-1, and GB/T 228.1, the JH-8000 platform supports both routine quality control and R&D-grade material property evaluation across metals, polymers, composites, elastomers, textiles, adhesives, and biomedical specimens. Its modular architecture accommodates multiple frame configurations (dual-column portal, single-column, horizontal, and manual desktop), enabling laboratory-scale validation as well as high-force structural testing up to 30,000 kgf.

Key Features

• Panasonic AC servo motor drive (JH-8000, JH-8000A, JH-8010) ensures high-resolution speed control from 0.001 mm/min to 1000 mm/min, with closed-loop position and load feedback for dynamic stability during creep, stress-relaxation, and cyclic testing.
• High-accuracy load measurement using temperature-compensated strain-gauge load cells, certified to ±0.25% full-scale accuracy (JH-8000/JH-8000A/JH-8010) or ±1% (economy and microcomputer variants), meeting ISO 7500-1 Class 0.5 or Class 1 requirements.
• Modular crosshead travel options (150 mm to 1000 mm) and adjustable test width (400 mm or 500 mm) support ASTM-standard specimen geometries—including Type I, IV, and V tensile bars—as well as custom fixtures for non-standard applications.
• Dual-column portal frames (JH-8000/JH-8000A/JH-8001) provide rigidity and alignment stability for high-load testing (>5000 kgf); single-column designs (JH-8010/JH-8002–JH-8007) optimize footprint and accessibility for low-to-mid range applications (≤500 kgf).
• Integrated safety mechanisms include automatic overload cutoff, emergency stop circuitry compliant with IEC 60204-1, and programmable break detection with immediate crosshead halt upon specimen failure.
• Optional accessories include pneumatic wedge grips, hydraulic clamps, extensometers (contact and non-contact), environmental chambers (-70°C to +300°C), and video extensometry modules for strain mapping.

Sample Compatibility & Compliance

The JH-8000 Series accommodates specimens ranging from thin films (≥0.05 mm thickness) to structural steel coupons (up to 100 mm width × 25 mm thickness). Standardized grip systems—flat-faced, serrated, vise-type, and pneumatic—ensure secure engagement without slippage or premature failure at clamping interfaces. All models comply with mechanical testing standards including ASTM D638 (plastics), ASTM D412 (elastomers), ISO 527 (polymeric materials), ISO 178 (flexural properties), and EN 10002-1 (metals). Data acquisition and reporting protocols support audit-ready documentation aligned with GLP and GMP frameworks; software versions for PC-integrated models include configurable electronic signatures and 21 CFR Part 11-compliant audit trails.

Software & Data Management

PC-based models (JH-8000, JH-8000A, JH-8010) run proprietary Windows-native software supporting real-time graphing of stress–strain, load–displacement, and time–force curves. The interface enables multi-curve overlay, automatic yield point detection (0.2% offset method), modulus calculation (tangent, secant, chord), and export to CSV, Excel, PDF, and XML formats. Raw data files are timestamped and stored with metadata (operator ID, calibration certificate ID, environmental conditions). For economy models (JH-8002–JH-8008), onboard LCD displays provide live parameter readouts—including peak load, elongation at break, and displacement—with optional USB data logging via external memory devices.

Applications

• Quality assurance of incoming raw materials (e.g., stainless steel wire, PET film, carbon fiber prepreg) against supplier specifications.
• Development and validation of polymer blends, thermoplastic elastomers, and biodegradable packaging films per ISO 1183 and ASTM D882.
• Mechanical screening of medical device components—including suture threads, catheter tubing, and orthopedic fixation screws—per ISO 5832 and USP .
• Adhesion strength assessment of pressure-sensitive tapes, laminates, and printed electronics using 90° and 180° peel fixtures.
• Teaching laboratories for undergraduate mechanical engineering curricula covering Hooke’s law, Poisson’s ratio, ductility, and fracture toughness fundamentals.
• Automotive component validation—including seatbelt webbing, airbag fabrics, and gasket materials—under SAE J211 and ISO 14855 protocols.

FAQ

What load capacity options are available across the JH-8000 Series?
The series spans 0–50 kgf (desktop/hand-operated models) to 30,000 kgf (heavy-duty portal systems), with discrete tiers: ≤500 kgf (single-column), 2000–5000 kgf (mid-range portal), and 10,000–30,000 kgf (high-force portal).
Is the system compatible with third-party extensometers or environmental chambers?
Yes—standard analog (±10 V) and digital (RS-232/USB) input channels enable integration with OEM and aftermarket extensometers, furnaces, humidity chambers, and cryogenic stages.
Does the software support automated report generation for ISO/ASTM compliance?
Yes—predefined test templates embed standard calculation methods (e.g., Young’s modulus per ISO 527-2, yield strength per ASTM E8), and reports include calibration traceability, uncertainty budgets, and digital signature fields.
Can the JH-8000 Series perform compression or flexural tests?
Yes—all models support compression (with top/bottom platens) and three- or four-point bending (using accessory fixtures), provided appropriate load cell orientation and fixture geometry are selected.
What maintenance is required to sustain metrological performance?
Annual recalibration of load cells and displacement encoders is recommended; daily verification using certified reference weights and gauge blocks is advised prior to critical testing sessions.