Do I need a dancer Closed Loop system or load cell based Closed Loop system for my application?
A. Dancer systems are typically used when accumulation is needed to allow for tension variations created by out-of-round rolls, indexing, or start / stop applications. In these cases or any others where relatively large fluctuations of web velocity are expected to occur, a dancer system will absorb the large transients and maintain the desired tension. Load cell based systems are typically used for precise control of tension in a continuous moving web or for round rolls.