COATING THICKNESS GAUGE Coating Thickness Gauge for quick, precise and non destructive measurement of Electroplating, Nickel Coating, Phosphating, Paint, Plastic, Enamel etc on steel. Measuring Principle :- The measurement of the coating thickness  is based on magnetic attraction. The attractive force is related to the distance between a permanent magnet and a steel substrate. This distance represents the coating to be measured. The magnet is lifted from the surface by means of a spring connected to the magnet arm. The force needed to lift the magnet is directly related to the angel of rotation of the torsion spring. This measuring principle is also especially suited for electroplated nickel on copper, aluminium and other non-ferrous metal. Feature to make your quality control more precise and accurate ·        Highest accuracy with simplest operation. ·        No calibration necessary simple set-up and measurement. ·        All gauges are without power or battery. ·        One point measurement ·        Robust metal case to protect from mechanical shocks. ·        Precision measuring system resistant to solvents.   Technical Data : Type Range Application Tolerance Minimum Surface Minimum Curvature Radius of the sample Minimum base thickness 6G 0~100 μm Electroplating & Paint coating on Steel ±1μm or 5% of reading Ø 20 mm 5 mm Convex / 25mm Concave 0.5mm 6F 0~1000 μm Paint on Steel ±5 μm or 5% of reading Ø 30 mm 8 mm Convex / 25mm Concave 0.5mm NiFe-50 0~50 μm Electroplating Nickel on steel ±2 μm or 8% of reading Ø 20 mm 10 mm Convex / 25mm Concave 0.5mm