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The Standard of Excellence
for Inline Industrial Thickness Measurement on flat products

Standalone or complementary technologies to solve every industrial challenge: choose the technology you really need.

X-ray thickness a standard of excellence

nGauge is the Standard of Excellence
for Industrial Thickness Measurement in critical environments

X-ray technology, the ideal AGC input

In the demanding world of metal rolling, precision and reliability are not optional - they are the foundation of profitability and quality. For decades, X-ray thickness gauges have been the gold standard for non-contact measurement in steel, aluminum, and non-ferrous mills. LGE Engineering's nGauge represents the evolution of this trusted technology, delivering the accuracy, speed, and robustness that modern automatic gauge control (AGC) systems demand.

X-ray thickness gauging operates on the principle of mass absorption: as penetrative radiation passes through metal, the amount absorbed varies exponentially with thickness. This physical principle, combined with advanced digital signal processing, allows the nGauge to achieve plus/minus 0.1% accuracy and sub-micron resolution across an extraordinary thickness range from ultra-thin foil at 7 microns up to hot steel exceeding 150 mm

X-ray thickness gauge system in an industrial rolling mill environment
nGauge X-ray system : non-contact measurement for automatic gauge control Proven and reliable

What sets the nGauge apart is its role as the ultimate input for AGC systems. In a rolling mill, the AGC uses thickness deviation signals to adjust roll gap in real time, ensuring consistent product quality. The nGauge's millisecond-level response time , a calculation period as fast as 10 ms, makes it the ideal partner for closed-loop control, enabling producers to meet tight tolerances with minimal waste.

The nGauge is engineered for 24/7 continuous operation in harsh mill environments, withstanding heat, scale, and vibration. Its digital architecture, unified under a single software platform, manages data from multiple sensors and technologies, simplifying integration and maintenance. The system also features digital calibration standards that allow fast, automated setup and standardization, reducing downtime and operator error.

Accuracy plus/minus 0.1% of the target (not better than 1 micron)
Response 10 ms
Range 7 microns to 50+ mm
AGC Input closed-loop ready

With the nGauge, LGE Engineering has standardized and unified decades of experience in X-ray gauging, delivering a system that is modern, reliable, and precise. Whether for hot strip mills, cold rolling tandems, or finishing lines, the nGauge provides the consistent, accurate data needed to "produce better, faster, and cheaper"

X-ray technology automatic gauge control non-contact mill-duty digital calibration 3 ms response

Choosing the Right Technology

Each measurement principle has unique advantages for specific applications

Our technical specialists will analyze your application and recommend the optimal measurement solution for your specific requirements.