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See the PMS-FF sensor
in action (coming soon)

See the PMS-FF in operation.
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Why choose the PMS-FF Sensor for your company?

Learn about the benefits of using the PMS-FF Sensor in your company.

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The PMS-FF sensor is a high-tech double capacitive sensor capable of measuring multiple layer and barrier films. The sensor is installed after the nip roller where it measures at both edges of the lay-flat film.

The two sensors position themselves automatically at the edges of the film where they follow any changes in width. Both thickness and width are measured and transmitted to the computer and displayed on the screen.

The thickness measurement is processed by the computer which activates the adjustment units of the SmartLip automatic air ring to automatically correct the thickness profile. All integrated components are manufactured exclusively with Octagon technology.

Technical features:

Measuring range 6 – 300 µm
Resolution 0,1 µm

Quality in
every detail

See our photo gallery of the PMS-FF Sensor. Measuring precision is the motto of PMS-FF.

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Present in
companies all over the world.

Large companies rely on our solutions.
We are a reference in technology for the plastic industry.

plasticos generales
Mega Steel2

Talk to Octagon

We are a technology center which has guaranteed our customers spare parts and technical support for over 30 years. As holders of an unequalled record of keeping systems running for 30 years, 24 hours a day, we are proud of the stability of our systems and the quality in technical support.

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Try the path to Quality Management.

Technology Center

Industry 4.0. Together with our customers, we are creating a digital future.


Be our business partner, the individual needs of your process will be the focus of our actions.

Frequent questions

This sensor does not mark the film. The system measures without contact.

Yes, this sensor measures films with PA/PE, EVOH, PVDC and others. This sensor is also suitable for double and triple bubble extruders.

Polyethylenes and plastic films in general.
This sensor has a high reading capability including measurement of more critical films. It can easily be recommended for any multilayer co-extruder, including double or triple bubble.

Yes, this sensor also measures the film width, thereby allowing the connection of automatic width control systems such as IBC, calibration cages, etc.

Yes, simply press the Measurement-ON button on the operating panel and the sensor will automatically move to the film edges.

This sensor is positioned on the edge of the lay-flat film and uses the rotation or oscillation of the extruder to obtain a 360 degree reading of the film. Gusseted film does not allow this type of measurement due to the double fold on the edges leading to incorrect readings.

The PMS-FF Sensor has a very robust mechanical design. Maintenance is very simple, just keep the sensor clean and moving parts lubricated.

First, it is the initial investment of the PMS-FF which is substantially lower due to the fact that it does not require the structure of the oscillating rail that comes with the PMS-B.

Second, the PMS-FF Sensor is lighter and easier to assemble, reducing transport costs and assembly time on the extruder.

Third, due to the automatic positioning of the two sensors at the film edges, a width measuring function is integrated in the system.

Fourth, the PMS-FF is a non-contact sensor. Any risk of marking the film or wear of the sensor due to abrasive film surfaces are totally eliminated.

Yes. You can purchase only the sensor and use it for online measurement.

Yes. Contact our sales manager:
Mr. Klaus Janzen

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Who we are.
What we do.

Welcome! We are Octagon, a world reference in technology for the plastic industry.

Meet Octagon!

Automatic Air Ring

Sensor de Espessura PMS-B - Octagon Blown Film Control

Thickness Sensor



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Width Measurement

dosador gds eco

Gravimetric Dosing

produtos especiais

Special Products

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controle automatico largura

Automatic Width Control

upgrade maquinas

Upgrade of Blown Film Extruders and Co-Extruders

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Take advantage of all the benefits of the PMS-FF Sensor. Acquire it for your company.

Octagon measuring equipment: We have been leaders in thickness profile control and measurement for over 30 years.

Octagon Blown Film Control GmbH:

Adresse: Nürnberger Straße 119, D-97076 Würzburg, Germany
Telefon: +49 931 27 96 70
Fax: +49 931 27 96 799