System information


The EPILiner edge spreading system comprises two spreader units, each of which has a three-finger roller arrangement. The two fixed rollers are always in contact with the cord, and the movable roller engages in the edge area of the cord. The width of the cord can be controlled by varying the roller bite angle. Spreadability can be optimized by manually adjusting the correction angle.

Area of use

In particular, on calender lines ahead of the calender gap, or in hot-stretching lines ahead of the dip or ahead of the rewinding section, the use of an edge spreading system is essential in order to ensure uniform thread distribution.


The EPILiner edge spreading system can be mounted in all positions. The infeed length should be at least half a web width, and the outfeed length should be kept as short as possible. Optimum web width control can only be achieved with the aid of a web guider arranged in the run-up.


K = Spreading effect | L1 = Infeed path | L2 = Exit path | 2 = Infeed roller | 3 = EPILiner edge spreading device | 4 = Sensor | 5 = Locking roller | α = Skewed position | β = Dipping angle | 6 = Dipping roller

Web guiding systems

Spreading system EPILINER BCB11

Edge spreading system for constant web width control of tire cord in edge area

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System components

Infrared edge sensor PoE FR 54

Infrared edge sensor based on the principle of retroreflection with a measuring range of ±10 mm and a resolution of 0.02 mm

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Command station DO 42

Visualization and operation of web guiding systems with multiple operation of up to 255 web guiding control loops

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Data network center DN 40

Data network center for central connection of all components in a control system

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Data network center DN 10

E+L computer for customer-specific software, acts among other things as a link between the customer's user hardware and the E+L system network.

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