LEI-TECH LK-AYCLY1500 Portable Metallurgical Microscope with 3D Topographic Measurement for Gravure Cylinder Dot Analysis

Overview

The LEI-TECH LK-AYCLY1500 is a purpose-built portable metallurgical microscope engineered for high-precision 3D topographic metrology of gravure printing cylinders and related precision-engineered rollers. Unlike conventional benchtop metallurgical microscopes, this system integrates a calibrated optical path, coaxial LED illumination, motorized fine-focus actuation, and an embedded Android 5.0 platform—enabling standalone, field-deployable measurement without external PCs or AC power. Its core measurement principle relies on focus-stacking combined with sub-pixel edge detection and stage-based coordinate mapping, delivering traceable XY lateral resolution of ±0.5 µm and Z-depth repeatability of ±1 µm across a 4 mm vertical range. Designed specifically for quality assurance in rotogravure, flexographic, and ceramic anilox cylinder manufacturing, the instrument meets the geometric fidelity requirements for evaluating dot geometry—including volume, shoulder angle, wall profile, and depth uniformity—critical for ink transfer consistency and print registration stability.

Key Features

• Self-contained Android 5.0 operating system with intuitive touch interface (7″ 720p capacitive display), eliminating dependency on external computing hardware
• Tri-objective turret with parfocal, apochromatic 4×, 10×, and 20× metallurgical objectives optimized for reflective metal and ceramic surfaces
• Coaxial LED illumination system with adjustable intensity and pre-configurable exposure profiles—enabling consistent imaging across highly variable surface reflectivity (e.g., chrome-plated steel vs. matte black ceramic coatings)
• Motorized Z-axis fine focus with closed-loop feedback and programmable step resolution, supporting focus-stacking for depth profiling
• Integrated XYZ translation stage with 20 mm travel per axis and spherical roller cradle accommodating cylinders from Φ100 mm to Φ500 mm
• Onboard rechargeable 5 V / 5000 mAh lithium-ion battery enabling ≥3 hours of continuous operation in factory-floor or pressroom environments
• Real-time measurement engine supporting length, angle, area, circle, line-to-line, and multi-point distance tools—all traceable via user-performed self-calibration using included NIST-traceable micrometer scale

Sample Compatibility & Compliance

The LK-AYCLY1500 is validated for non-destructive inspection of metallic and ceramic-coated cylindrical substrates used in high-speed rotary printing systems. It accommodates gravure cylinders with engraved cell geometries (e.g., 30–200 LPI), anilox rollers with laser-ablated or mechanically engraved cells, and electroplated or thermally sprayed surfaces. While not certified to ISO/IEC 17025 as a standalone calibration laboratory, its measurement traceability aligns with national metrological standards referenced by the China National Institute of Metrology (NIM). The device supports GLP-aligned documentation workflows through automated PDF report generation—including timestamped images, coordinate metadata, operator ID, and calibration verification logs—facilitating internal audit readiness and alignment with ISO 9001:2015 clause 7.1.5.

Software & Data Management

The proprietary Android application provides a complete metrology workflow: live image acquisition, real-time measurement overlay, focus-stack depth reconstruction, and export-ready reporting. All measurement data—including raw BMP images (1280 × 720 px), coordinate tables, and annotated screenshots—are stored locally in encrypted eMMC (8 GB) and synchronized via Wi-Fi to networked file servers or cloud storage platforms. USB 2.0 host mode allows direct connection to printers or external drives. The software implements role-based access control (operator/admin), full audit trail logging (per FDA 21 CFR Part 11 Annex A guidance), and configurable report templates compliant with internal QA protocols. Calibration status, firmware version, and sensor health diagnostics are accessible within the system settings menu.

Applications

• Gravure cylinder cell geometry verification: depth, opening width, shoulder angle, and volume consistency across circumferential and axial zones
• Anilox roller inspection: ceramic coating integrity, cell wall uniformity, and plugging assessment in flexographic and letterpress operations
• Metallographic surface analysis: grain structure evaluation, coating thickness estimation (via edge contrast segmentation), and defect mapping on machined or heat-treated components
• Nonwoven fiber morphology quantification: fiber diameter distribution, bonding point density, and pore size analysis in roll-to-roll production lines
• In-process dimensional validation of precision-machined parts where portability and rapid turnaround are critical—e.g., mold inserts, tooling fixtures, and bearing races

FAQ

Does the LK-AYCLY1500 support automated focus stacking for 3D surface reconstruction?
Yes—the instrument performs sequential Z-axis stepping with real-time contrast optimization, generating depth maps and cross-sectional profiles directly within the onboard application.
Can measurement data be exported in CSV or XML format for integration with MES or SPC systems?
Yes—measurement tables and metadata are exportable as CSV via USB or Wi-Fi; custom API integration is available under OEM licensing agreements.
Is the system compatible with third-party calibration standards such as NIST SRM 2056 or PTB reference gratings?
The self-calibration module accepts user-defined scale factors; however, physical verification against accredited artifacts requires periodic external validation per ISO/IEC 17025 procedures.
What environmental conditions affect Z-axis accuracy during extended field use?
Ambient temperature fluctuations exceeding ±2 °C/hour may induce thermal drift in mechanical components; operation within 5–35 °C is recommended for stated specifications.
How is software update and security patching managed in regulated environments?
Firmware updates are delivered via signed OTA packages; offline update capability is supported through micro-USB and local APK installation with SHA-256 hash verification.