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AJ-A HandHeld Portable Metallurgical Microscope with Polarizer

AJ-A HandHeld Portable Metallurgical Microscope with Polarizer

AJ-A is a handheld portable metallurgical microscope from Nanjing AMADA Instrument Co., Ltd. designed for on-site metal surface inspection, material analysis, and quality control in industrial environments. The monocular design with built-in polarizer supports magnifications from 100X to 400X using standard 10X eyepiece and 4X–50X objectives. It features adjustable LED illumination (3.6V) and a 160 mm tube length for consistent optical performance in field or workshop use.

  • Portable and handheld design enables on-site metal surface inspection without lab setup
  • Built-in polarizer supports birefringence analysis of crystalline and anisotropic materials
  • Adjustable LED illumination (3.6V) ensures consistent lighting in variable environments
  • Working distance range 0.5 mm – 7.3 mm allows close inspection of small or recessed metal features
  • Standard magnification range 100X–400X covers common metallographic needs
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Technical features

  • Monocular body with 10X eyepiece (18mm field of view, 23.2mm mounting size)
  • Five objectives: 4X, 10X, 20X, 40X, 50X for magnification range 100X–400X
  • Working distance 0.5 mm – 7.3 mm across all objectives
  • Tube length 160 mm for standardized optical alignment
  • Focusing range 36 mm for depth control during inspection
  • Adjustable LED illumination (3.6V) with consistent brightness
  • Built-in polarizer for birefringence and anisotropy detection
  • Handheld design with lightweight construction for one-handed operation

Who it is for

  • Industrial quality control engineers in metal fabrication and machining
  • Field service technicians inspecting metal parts at client sites
  • Educational institutions teaching materials science with portable tools
  • Importers sourcing handheld metallurgical microscopes for industrial clients

Specifications

ModelAJ-A
Eyepiece10X / 18mm (Mounting Size: 23.2mm)
Objectives4X, 10X, 20X, 40X, 50X
Magnification Range100X – 400X (Standard Configuration)
Working Distance0.5 mm – 7.3 mm
Tube Length160 mm
Focusing Range36 mm
Light SourceAdjustable LED (3.6V)

Use guide

  • Select objective based on required magnification and working distance
  • Use the built-in polarizer by rotating the polarizing filter to observe birefringence
  • Adjust LED brightness for optimal contrast on reflective metal surfaces
  • Hold the device steady with one hand and use the focusing ring for sharp image

FAQ

What is the maximum magnification?
400X with 10X eyepiece and 40X objective; 500X with 50X objective (10X eyepiece).
Can I use this microscope with a camera?
Yes, but a camera adapter is not included; external mounting is possible via standard 23.2mm eyepiece mount.
What is the working distance for the 50X objective?
0.5 mm, the minimum in the range; ensure sufficient clearance for surface inspection.
Is the polarizer fixed or adjustable?
The polarizer is built-in and can be rotated manually for orientation control.
What power source does the LED use?
3.6V adjustable LED illumination; powered by internal battery or external 3.6V source.

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