• Sensors, Detectors and Transducers

The NWI Narrow Web Tension Transducer combines a bearing-mounted idler roll and two tension sensing elements in one package. It measures tension in a moving web of paper, film, foil or other material. Typically, it is used in tension control and display systems in label, tag, or tape printing or processing machines where the machine has only one side frame and the idler rolls are cantilevered.

The NWI Narrow Web Tension Transducer is highly accurate because it has sensing elements at each end of the idler roll. This arrangement is functionally the same as wide web tension measuring schemes, using two tension transducers and a separate idler roll. The sensing elements measure total web tension accurately regardless of web position on the roll, and regardless of which edge of the web is tight. Constructed of stainless steel and aluminum for excellent corrosion resistance.

A new option of the Narrow Web tension transducer is a built-in, digital, LED tension display at the end of the roll. The base of the NWI roll bolts onto the cantilevered frame of a press or machine at a desired point in the web path and reads out running tension on the LED display during operation. For a machine operator, who must make control adjustments when web tension runs outside acceptable limits, the direct on-roll tension display is convenient and easy-to-read.

Tension Transducers Capabilities:

• Measures actual web tension
• Promotes improved product quality and reduces waste
• Does not affect the web. No steering effect, web breakage or length change
• Idler roll is included. Nothing else to buy
• High accuracy
• Easy to install