Radial force measuring axle RMA Web tension measurement - precise and online
• for internally mounted idler rolls without axle • compact flange type • even for high line speeds • direct radial force transfer • multi-purpose, compact and robust design • available in 5 rated load ranges: 0 to 100N ... 0 to 2000N
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 effected 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: • measurement of tension in the web • bearing of the roll • guiding and deflecting the product web
Special features
• compact design • direct, radial force transfer • easy installation thanks to flange mounting • high spring constants for the sensor permit high rotation speed ratings for the deflector roll • high precision and excellent long-term stability
• nominal forces differing from standard • sensor housing and measuring cell made out of stainless steel, for use in humid environment • advanced temperature range
The bearing journal supports rolls with internal mounting. Measurement of the web tension is effected by registering at both sides the radial bearing forces on a web guiding roll.
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