Fujihira FHK Model-III Digital Eggshell Strength Tester

Overview

The Fujihira FHK Model-III Digital Eggshell Strength Tester is an ISO-compliant, precision-engineered instrument designed for objective, repeatable quantification of eggshell mechanical integrity in commercial poultry operations, hatcheries, feed research laboratories, and food safety QA/QC environments. It operates on the principle of controlled axial compression force application—using a vertically actuated, ultra-responsive ultrasonic motor-driven probe—to measure the maximum load (in kgf or N) required to fracture the eggshell at its equatorial region. This peak-force value serves as a direct, standardized proxy for shell strength, a critical quality attribute correlated with in-ovo embryo viability, post-lay breakage rates during handling and transport, and overall flock health indicators such as calcium metabolism and dietary mineral balance. Unlike hydraulic or manually loaded testers, the Model-III eliminates operator-dependent variability through fully automated cycle execution: probe descent → contact detection → linear force ramping → real-time fracture event capture → immediate motion cessation via patented PAT.PEN (Patented Peak-Event Neutralization) logic.

Key Features

• Fully automated measurement cycle initiated by single-button press—no manual calibration or pre-test setup required.
• Ultrasonic motor actuation ensures sub-millisecond response time: instantaneous start upon command and immediate stop at shell fracture, minimizing overtravel and ensuring true peak-load fidelity.
• High-speed 1,000 Hz sampling rate captures dynamic fracture behavior with temporal resolution sufficient for detecting micro-cracking precursors and distinguishing brittle vs. ductile failure modes.
• Digital display with 0.001 kgf resolution provides traceable, unambiguous readouts compliant with internal SOPs and external audit requirements (e.g., ISO 712:2022, USDA AMS Grade Standards).
• Onboard memory stores up to 1,000 test records with timestamp and sequence ID—enabling batch-level statistical analysis without continuous PC connection.
• Dual-output interface (RS-232C and USB) supports both legacy industrial SCADA integration and modern Windows/macOS data ingestion via Fujihira’s certified FHK-DataLink software suite.

Sample Compatibility & Compliance

The Model-III accommodates standard commercial hen eggs (Grade A, AA, B; weight range 50–70 g) and selected avian species eggs (e.g., duck, quail) with minor fixture adjustment. Its conical probe geometry and adaptive contact-sensing algorithm ensure consistent loading axis alignment across variable shell curvature. The instrument meets mechanical safety requirements per IEC 61010-1 and electromagnetic compatibility standards EN 61326-1. Data acquisition workflows support 21 CFR Part 11–compliant electronic records when used with validated software configurations—including audit trail generation, user access controls, and electronic signature capability—making it suitable for GLP- and GMP-regulated egg processing facilities.

Software & Data Management

FHK-DataLink v3.2 (Windows 10/11, macOS 12+) provides raw data export (CSV, Excel), statistical summary (mean, SD, CV%, min/max, histogram), trend charting across production batches, and automated report generation aligned with internal QA templates or third-party certification bodies (e.g., HACCP, BRCGS Food Safety Issue 9). All data transfers are encrypted; local database backups are timestamped and checksum-verified. Audit logs record user login/logout events, parameter changes, and data export actions—fully traceable for regulatory inspection.

Applications

• Monitoring longitudinal shell strength trends across laying cycles to evaluate nutritional interventions (e.g., phytase supplementation, limestone particle size optimization).
• Validating egg washing and packaging line settings to minimize post-process damage.
• Supporting breeding program selection criteria for genetic lines exhibiting superior shell biomechanics.
• Conducting shelf-life studies correlating storage duration/temperature with progressive shell weakening.
• Generating documentation for supplier qualification under retailer food safety programs (e.g., Walmart PFS, Tesco Farm Standard).

FAQ

Is the Model-III calibrated before shipment?
Yes—each unit undergoes factory calibration using NIST-traceable dead-weight standards and includes a Certificate of Calibration valid for 12 months.
Can the instrument be used for non-hen eggs?
With optional accessory fixtures (sold separately), it supports duck, turkey, and quail eggs; contact Fujihira Technical Support for fixture compatibility specifications.
Does the system comply with FDA or EU food safety documentation requirements?
When deployed with FHK-DataLink in validated mode and configured with role-based user accounts, it satisfies 21 CFR Part 11 and EU Annex 11 data integrity expectations.
What maintenance is required?
Annual verification of probe alignment and force sensor linearity is recommended; no routine lubrication or hydraulic fluid replacement is necessary due to solid-state ultrasonic actuation.
Is technical support available outside Japan?
Yes—Fujihira maintains authorized service partners in North America, EMEA, and APAC regions with multilingual engineering support and spare parts logistics.