Exact knowledge of the length and velocity of sheet materials in, for instance, rolling or paper mills is an essential factor in your cost and process optimization as well as process reliability. Non-contact velocimeters from Polytec surpass the performance of traditional contact measurement methods and offer a number of advantages. In thousands of successful installations across the world laser surface velocimeters from Polytec ensure laser-precision dimensional accuracy from metallurgical plant and rolling mill products right through to textile and film, paper, cables and wire as well as wood and construction materials. In doing so, Polytec LSVs optimize material usage and guarantee precision compliance with your specifications.