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SlimTrak

Coat-weight and Moisture Measurement Scanning System

The SlimTrak is a coat-weight and moisture measurement scanning system for measuring the thickness, coat-weight, basis weight and moisture on narrow web lines. Since these compact web lines often produce high value-added products, it is essential that they are accurately measured and controlled. SlimTrak provides a cost-effective solution for providing fast and accurate measurement to help manufacturers improve product quality and productivity. The system is both compact, robust and can easily be retrofitted to most lines even in confined process locations. The scanner can be equipped with either NDC’s IG710e backscatter or SR710e specular reflectance near infrared (NIR) sensors depending on the application or the web material properties. The operator interface displays the full cross-section web thickness profile and real-time thickness measurement.

LIMAB UK help our customers to streamline process efficiency, lower waste and increase product quality with the use of our non-contact moisture measurement systems such as the PrediktIR II Coat-Weight Thickness Measurement Gauge and NIR Moisture Analyzer.

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Quick Spec

Scan widths Scanning speed Sensor principle Operating temperature
200-2500 mm 13-127 mm/sec NIR 0-50°C

Operating Principle

The SlimTrak is equipped with either an IG710e backscatter or SR710e specular reflectance NIR sensor. Both sensor types work on the principle that the material being measured absorb a specific wavelength of infrared (IR) light. By pulsing light at known wavelengths and comparing the absorption rate to an internal reference it is possible to determine exactly by how much each wavelength is being absorbed. Using high-speed signal processing, the algorithm converts the infrared signals into an output that is proportional to coat-weight, material thickness or moisture by means of a calibration algorithm. The measurement is unaffected by changes in process conditions such as temperature, ambient lighting and humidity changes.

Applications

Coating Applications

    • Lacquer coating on foil
    • Adhesive coatings on tapes
    • Label stock
    • Hotmelt coaters
    • Dry lamination
    • Water-based coatings

Moisture Applications

    • Moisture in paper and board
    • Re-moisturising paper webs for labelstock
    • Moisture in paper pre-metallisation

NDC Technologies Long Experience

NDC Technologies have nearly 40 years of experience in applying NIR technology to their in-process measurement systems. This experience is engineered into every gauge model to ensure that the user can easily employ the gauges without specialist knowledge yet will benefit from the accurate and dependable measurement from day one.

Stable Dependable Measurement

Providing stable measurement is essential in helping our customers improve their process control and maximise efficiency.

Insensitive to Ambient Humidity and Temperature

Designed for purpose and suitable for continuous in-line measurement in harsh industrial applications.

Fast Measurement Rate

Fast measurement rate enables fast process variations to be accurately monitored ensuring the best possible process control.

Process Ready

The simple configuration makes installing easy and it can be retrofitted to most existing lines.

Low Cost of Ownership

Long-term stability combined with industry best performance, low installation costs and no routine maintenance requirements guarantee the lowest cost of ownership over PrediktIR’s many years of service.

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