Tension Control Modes For Non Woven Converting Explained

Why Tension Decides Roll And Fold Quality

Every fault operators blame on the material, telescoping rolls, folded sizes that drift, edges that wander, traces back to tension. Web tension has to stay constant while roll diameter changes by a factor of three during a run, which is why the control method matters more than the motor size.

Magnetic Powder Tension Control

A magnetic powder brake or clutch gives smooth, adjustable resistance and holds tension steadily as diameter changes. It is our standard choice on wide folding and bed cover lines, where dimensional accuracy of the folded product depends on the web arriving at the folder under constant tension.

Medical Bed Cover Folding Machine (AQ-B(2400))

Lateral And Conveyor Belt Control

Lateral tension control manages the web across its width rather than along its length, which matters on wide material that tends to bag in the middle. Conveyor belt control carries light material without pulling it, and is used where a web is too weak to be drawn through by tension alone.

Servo Tension Control

Servo control closes the loop electronically and reacts fastest to changes in speed and diameter. It is the right choice when the line starts and stops often, or when several operations run in registration, as on our AQ-R(3500) which embosses, scores, counts, slits and rewinds together.

Large Non Woven Rewinding Machine (AQ-R(3500))

One Machine With Four Modes

Converters who run PP woven, spunlace, needle punched and paper on the same floor should look at the AQ-R (1200-3500), which offers all four modes on one frame. Selecting the mode for the material avoids the compromise setting that spoils half your production.