Manufacturing sectors that process the so called “light” materials, as for instance textile, plastic, wood, pulp and paper industries, employ machines that require a high wear strength, which is caused by the continuous repetition of displacements and vibration, as well as by the chemical products used in the transformation process of raw materials. Moreover, to optimize the production chain in terms of times and costs, it’s crucial that machines operate at elevated speed with the most accuracy, in order to guarantee the quality standard of the finished or semi-finished products. Therefore the necessity of employing position and movement sensors built with materials and sealing standards suitable for the environment of use, which satisfy at the same time the flexibility, accuracy and speed features required by these industries. Eltra offers numerous lines of optical and magnetic encoders, developed to fulfill all the requisites according to the type of machinery and material processed.