LEI-TECH LK-AYCLY800 Portable Handheld Metallurgical Microscope & Gravure Cylinder Dot 2D Measurement System

Overview

The LEI-TECH LK-AYCLY800 is a fully integrated, handheld metallurgical microscope engineered for in-situ 2D geometric metrology of gravure printing cylinders, anilox rolls, and engraved or etched patterned rollers. Unlike conventional benchtop metallurgical microscopes requiring fixed mounting and external computing infrastructure, the LK-AYCLY800 embeds optical imaging, precision mechanical positioning, real-time image analysis, and battery-powered autonomy into a single compact unit. Its core measurement principle relies on high-resolution optical magnification coupled with pixel-calibrated digital image analysis—enabling traceable, repeatable quantification of dot geometry (diameter, pitch, edge angle, area), line width, spacing, and registration fidelity directly on production-floor roller surfaces. Designed specifically for quality assurance in gravure prepress and cylinder manufacturing environments, it supports rapid verification of engraving accuracy across chemical etching, laser ablation, and mechanical engraving processes—without removing the roll from its mounting or interrupting workflow.

Key Features

• True handheld portability: Weighing only ~1.0 kg with dimensions of 300 × 123 × 220 mm, the unit operates independently of AC power or external PCs.
• Integrated Android 5.0 platform: Hosts proprietary measurement application with intuitive touch-driven UI; no driver installation or OS compatibility constraints.
• Three interchangeable high-NA metallurgical objectives (4×, 10×, 20×) delivering calibrated total magnifications of 120×, 300×, and 600× respectively—validated for quantitative dimensional metrology per ISO 9276-2 and ASTM E112 practices.
• Coaxial 1 W green LED illumination ensures uniform, glare-free contrast on reflective metallic roller surfaces, critical for accurate edge detection in dot profile analysis.
• Motorized XYZ micro-positioning stage (20 mm travel range) with spherical articulating base enables stable, repeatable alignment over curved roller geometries (100–500 mm diameter).
• On-device measurement functions include point-to-point distance, parallel line spacing, angle between intersecting features, and enclosed area calculation—all traceable to pixel-scale calibration certified at ±0.5 µm length uncertainty.
• Internal 1.3 MP CMOS sensor captures 1280 × 720 BMP images with embedded measurement overlays; data export via Micro-USB or Wi-Fi to networked workstations or cloud repositories.

Sample Compatibility & Compliance

The LK-AYCLY800 is optimized for non-destructive, contactless inspection of hardened steel, chrome-plated, and ceramic-coated gravure and anilox cylinders. Its coaxial illumination and short working distance optics accommodate surface topographies with up to 4 mm depth variation—covering standard cell depths in fine-line and high-volume gravure applications. The system complies with general requirements for portable optical metrology devices under ISO/IEC 17025-accredited laboratory practice when used with documented calibration procedures. While not FDA 21 CFR Part 11–certified out-of-box, audit trails (timestamped image + measurement logs) and user-accessible export history support GLP/GMP documentation workflows. All firmware and measurement algorithms are developed in-house and validated against NIST-traceable step gauges and certified photomasks.

Software & Data Management

The embedded Android application provides full local control: live focus adjustment, auto-exposure tuning, manual ROI selection, and one-touch measurement annotation. Each captured image stores metadata including lens ID, magnification factor, timestamp, GPS coordinates (optional), and operator ID. Measurement results are saved as dual-format files—BMP with overlaid annotations and CSV with tabular X/Y coordinates, dimensional values, and statistical summaries (mean, std dev, min/max). Wi-Fi sync enables real-time image streaming to remote technical support teams via secure channels (e.g., TLS-encrypted HTTP POST or enterprise IM platforms). Internal storage (4 GB ROM + 16 GB flash) retains ≥5,000 annotated images; expansion via microSD is supported. Firmware updates are delivered OTA or via USB mass-storage mode.

Applications

• Gravure cylinder QC: Verification of dot size consistency, pitch deviation, and edge sharpness post-laser engraving or acid etching.
• Anilox roll evaluation: Quantitative assessment of cell volume distribution, wall integrity, and plating uniformity.
• Pattern registration validation: Cross-axis alignment checks for multi-color process cylinders.
• Wear and damage analysis: Detection and sizing of micro-pitting, chipping, or plating delamination on in-service rollers.
• Process troubleshooting: Correlation of measured dot geometry with print defect reports (e.g., mottle, scumming, tone jump) during press-side diagnostics.
• Supplier qualification: Objective, repeatable acceptance testing for outsourced cylinder manufacturing per customer-defined AQL sampling plans.

FAQ

Is the LK-AYCLY800 suitable for measuring non-cylindrical samples?
Yes—the XYZ stage and spherical base allow stable positioning on flat metal coupons, cross-sectioned specimens, or small machined parts, though optimal calibration assumes reflective, opaque surfaces typical of gravure substrates.
Does the system support calibration certificate issuance?
Calibration is performed using certified reference standards prior to shipment; users receive a factory calibration report. Optional annual recalibration services—including uncertainty budgeting per ISO/IEC 17025—are available through LEI-TECH authorized service centers.
Can measurement data be imported into third-party statistical process control (SPC) software?
Yes—CSV exports contain structured columns compatible with Minitab, JMP, SPC Wizard, and custom Python/R analytics pipelines. No proprietary file format lock-in is imposed.
What is the expected service life of the integrated battery?
Rated for ≥300 charge cycles while retaining ≥80% capacity; replacement battery modules are field-swappable and available under extended warranty coverage.
Is remote firmware update capability available outside China?
Yes—OTA updates are delivered globally via HTTPS endpoints; regional time-zone-aware scheduling and rollback functionality are built into the bootloader.