Extrusion techniques

Flevo Rubber Extrusion is fully dedicated to the production of rubber extrusion profiles. These profiles are produced in both endless and piece production.

We distinguish ourselves by having all the necessary extrusion techniques in house.

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Extrusion techniques for each type of rubber profile

Extrusion of rubber profiles is the core quality of Flevo Rubber Extrusion. We are the only company in the Benelux to produce rubber profiles in a microwave oven, liquid salt bath or with steam in our autoclave. This enables us to manufacture any rubber profile to your specifications in the desired type of material.

UHF (microwave/hot air)

One of the three ways that Flevo Rubber Extrusion extrudes its products is by using UHF in combination with hot air. UHF stands for Ultra High Frequency. We use these ultra-high microwaves to vulcanize your profile continuously on a conveyor belt.

Salt bath vulcanization

In salt bath vulcanization, also called Liquid Cure Method, Flevo Rubber Extrusion vulcanizes your profiles in a hot liquid bath of salt. This salt has an excellent heat transfer effect on the rubber to be vulcanized. This vulcanization is, just like the UHF, a continuous process.

A steel band pushes your rubber profile below the salt level so that it is properly heated all around. This is where craftsmanship comes into play, as the location/positioning of the profile under the steel band is essential for consistent sizing.

Autoclave technique

In the conventional department we extrude your rubber profile before vulcanizing it on a plate in the autoclave with steam. The size, position and shape of the profile determine the capacity of the autoclave filling.

Do you have any questions? Do not hesitate to contact us.

Our experienced team will be happy to assist you.

You can contact them directly via +31(0)320 233 007 or via sales@flevo-extrusion.nl

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In the extrusion of rubber profiles, the design of the mold (molding plate) largely determines the design. The product sketch, the chosen quality and the chosen rubber type are important ingredients to develop an optimally functioning molding plate.


Compound and material selection

Care is needed in the proper selection of the compound. When rubber is compressed through a mold plate, it tends to want to return to its original state. This phenomenon causes the rubber to swell; called Die Swell.



Good tooling is half the battle. In rubber extrusion, the choice of an extruder is crucial to the result. With the extruder, Flevo Rubber Extrusion turns the supplied compound into an endless product. With our own extrusion plant, you are assured of continuity and short delivery times.