Inner liner thickness measurement

Inner liners are used in every tyre to prevent the air from escaping. As the inner liner is a characteristic relevant to safety of every tyre, there are high requirements for compliance with the target data. An important criterion is the layer thickness. The system for measuring the thickness of inner liners operates without contact and wear-free. The inner liner is routed through the measuring system immediately after the calender roller. A measuring head traverses above the surface. An eddy current sensor measures the distance to the reference roller while an optical micrometer measures the distance to the rubber surface. The system can be integrated in the heating circuit of the calender roller for better temperature compensation.

Related sensors and products

Eddy current sensors for displacement and position Optical and Laser Micrometers

More application examples in Plastic, rubber

Wear measurement at 8-shaped bore holes in extruder machines Blown film thickness Thickness measurement of black rubber belts Reading the DOT code on tyres Extruder bore diameter Flat film thickness Non-contacting online layer-thickness measurement of foils Thickness Measurement on the Calender Special roll gap measurement on calender press Thickness measurement using displacement sensors Thickness measurement of rubber film Profile Profile measurement system Softcalender - temperature measurement Measurement of sprayed skin thickness