System information


Light section sensors measure the external geometry of the running product (tread, side wall). The granite frame, onto which the sensors are mounted, offers high temperature stability and reduced vibrations for highly accurate profile measurements.

Area of use

The online profile measurement system is used primarily in extrusion systems for the continuous inspection of treads and side stripes as well as inner liners. In hot areas, the profile measurement is used for production control in order to detect deviations from the specification as early as possible and alert the PLC. In cold areas, the profile measurement system provides optimum quality control and documentation.


The TriScanOnline light section system for profile measurement is used for process control in the extrusion line after the extruder and/or at the end of the cooling line for quality assurance. The granite frame reduces the thermally induced expansion many times over.


1 = Guide roller | 2 = Profile measurement | 3 = Light section sensor | 4 = Matrix camera | 5 = Tread | 6 = Side wall | 7 = Apex strip | M = Measuring range | AB = Profile width | NB = Nominal width |

Online profile measurement system, light section

Online profile measurement EL-TRISCAN LS NLS10

Contactless profile measurement system with differential method and real-time measurement

More info


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