RMA sensors are used for direct tension measurement in moving webs of paper, films, foils, textiles or metals.The bearing journal supports rolls with internal mounting. Measurement of the web tension is affected by registering at both sides the radial bearing forces on a web guiding roll.
Defined and setpoint controlled web tension ensures high product quality and is the basis for a minimum of machine down-times.
The compact RMA sensors in connection with a web guiding roll fulfill 3 functions at once: