Block load cells comprise a cast housing for adaptation to the customer's machine and a mounting plate to accommodate the pedestal bearing. The tension sensor is a bi-directional strip to which the strain gauges are applied, as a result of which an analogue measured signal proportional to the web tension is output.
Area of use
Block load cells are used for web tension control in practically all production plants where web-type materials are processed or finished. Above all, in the converting sector they offer significant advantages, as the rollers can always be replaced easily due to the good access to the pedestal bearings.
A horizontal mounting position with symmetrical wrapping between 60° to 180° to the vertical measuring direction is preferred. Measurement of the web tension on both sides by the tension sensor prevents incorrect measurements caused by sideways movement of the web and asymmetrical web tension distribution. Load cells incorporated in a closed loop must be positioned as near to the actuator as possible.