The load cell used for web tension management is composed of a stable outer ring with a flange cover and a centering collar for precision assembly, as well as a centering collar for precision assembly. Ball bearings are installed with their centers aligned by means of an inner ring in the shape of a bidirectional strip. The radial forces generated by the web cause the strain gauges connected together to form a measuring bridge on the inner ring to become unbalanced and unusable. This results in an analogue output signal that is proportional to the tension of the web.

AREA OF USE

A wide range of processing plants, including those that process or finish web-type materials, can benefit from the usage of flange load cells for web tension control. It is critical, in particular in front of processing units that the web is delivered with a constant web tension during the whole transport operation.


APPLICATION

A measuring roller with a 90° horizontal-vertical wrapping angle and a horizontal measuring direction is used to obtain the most precise measurement of web tension. When measuring web tension, the tension sensor must be capable of sensing bearing pressures on both sides of the web at the same time in order to avoid incorrect data caused by the web sliding sideways and an asymmetrical web tension distribution. Whenever possible, load cells that are employed in a closed loop should be located as close to the actuator as is feasible.

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RSL PB can be used in conjunction with ordinary guide rollers to mount on nearly all popular pedestal bearings. Maximum operating reliability due to overload protection of up to ten times the nominal measuring force (depending on the application). Through 1:25 resolution, the measuring range is quite large. Fully assembled double bending section with strain gauges in a full bridge configuration Because of easy access to the pedestal bearings, guide roller replacement is straightforward.

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