JH Series LCD-Display Single-Arm Electronic Tensile Testing Machine

Overview

The JH Series LCD-Display Single-Arm Electronic Tensile Testing Machine is a precision-engineered mechanical testing system designed for static uniaxial tensile, compression, and flexural characterization of both metallic and non-metallic materials. Built on a rigid single-column frame architecture with high-stiffness aluminum alloy housing and ground ball screw transmission, the system delivers consistent force application and displacement control in accordance with fundamental principles of Hooke’s law and elastic-plastic deformation theory. Its modular design supports standardized test methods defined by ISO 527 (plastics), ASTM D638 (tensile properties of plastics), ASTM E8/E8M (tension testing of metallic materials), GB/T 1040 (Chinese national standard for plastics), and ISO 6892-1 (metallic materials – tensile testing at ambient temperature). The machine operates under closed-loop servo control, ensuring high reproducibility across repeated load cycles and enabling reliable acquisition of stress–strain curves, yield strength, ultimate tensile strength, elongation at break, and modulus of elasticity.

Key Features

• Single-arm structural configuration optimized for compact laboratory integration while maintaining vertical alignment accuracy and minimal deflection under load
• Large-backlit LCD display interface providing real-time visualization of load (N/kN), displacement (mm), strain (%), test speed (mm/min), and time — no PC dependency required for basic operation
• Dual-tier hardware configuration: high-end variant integrates Panasonic AC servo drive and motor with integrated feedback loop; standard variant employs industrial-grade digital servo motor and controller with comparable dynamic response
• Precision photoelectric encoder (≥1000 PPR) ensures accurate position tracking and closed-loop velocity regulation across the full 0.01–500 mm/min range
• U.S.-sourced S-type or cantilever beam load cell calibrated to ISO 7500-1 Class 1 accuracy, supporting measurement from 2% to 100% of selected capacity (500 N to 10 kN)
• Adjustable crosshead travel (standard 0–700 mm) accommodates specimens ranging from thin films (<0.1 mm) to thick metal rods (up to Ø25 mm), with optional extended columns available upon request
• Robust mechanical design featuring preloaded ball screws, anti-backlash nut assembly, and vibration-damped base plate for stable data acquisition during high-speed ramp tests

Sample Compatibility & Compliance

The JH Series is validated for routine mechanical evaluation of polymers (thermoplastics, elastomers, composites), fibers (natural and synthetic), textiles, geotextiles, nonwovens, rubber sheets, wire ropes, foils, thin metallic strips, and small-scale machined components. Standard tensile grips include pneumatic or manual wedge-type clamps with serrated faces to prevent slippage; optional accessories include compression platens (ASTM D695), three-point bending fixtures (ASTM D790), peel test fixtures (ASTM D903), and shear adapters. All configurations comply with essential safety and metrological requirements outlined in ISO 16750-1 (mechanical environmental testing), EN 61000-6-2/6-4 (EMC immunity/emission), and GB/T 2611 (general requirements for testing machines). Calibration certificates traceable to CNAS-accredited laboratories are provided with each unit.

Software & Data Management

While standalone operation is fully functional via the built-in LCD interface, optional PC-based software enables advanced test sequencing, multi-curve overlay, statistical reporting (mean, SD, CV%), and export to CSV, Excel, or PDF formats. The software supports audit trail logging, user access levels (operator/administrator), and electronic signature capture — features aligned with GLP and GMP documentation practices. Data integrity complies with FDA 21 CFR Part 11 requirements when configured with time-stamped, non-erasable event logs and role-based permissions. Raw analog signals from the load cell and encoder are digitized at ≥1 kHz sampling rate, preserving transient behavior during yield point detection and necking onset.

Applications

• Quality control of extruded polymer profiles and injection-molded parts per ISO 10350
• Evaluation of tensile strength and elongation of medical device tubing (ISO 10993-12)
• Characterization of battery separator membranes under dry/wet conditions
• Mechanical screening of adhesives and laminates using peel and shear protocols
• Routine verification of wire drawing consistency in copper/aluminum conductor manufacturing
• Research-level stress relaxation and creep testing (with optional dwell control module)
• Teaching labs requiring intuitive operation and repeatable pedagogical demonstrations

FAQ

What standards does the JH Series support out-of-the-box?

It natively supports ASTM D638, ISO 527, GB/T 1040, ASTM D882 (thin plastics), and ISO 2285 (rubber tension sets), with fixture selection and software templates pre-configured for these methods.
Can the system perform cyclic loading or fatigue tests?

No — the JH Series is designed exclusively for static and quasi-static mechanical testing. For dynamic or high-cycle fatigue applications, a dedicated electrodynamic or hydraulic servo system is recommended.
Is third-party calibration included with delivery?

Yes — each unit ships with a factory calibration certificate traceable to national standards (CNAS reference), valid for 12 months under normal operating conditions.
How is overload protection implemented?

Hardware-based limit switches engage at 105% of rated capacity, immediately halting motion and triggering audible/visual alerts; software also enforces programmable upper bounds on load and displacement.
What maintenance intervals are recommended?

Lubrication of ball screw and guide rails every 6 months; annual verification of load cell linearity and encoder resolution; biannual inspection of grip jaw wear and alignment.