Kroll & Ziller – Data & Facts

All info and figures at a glance

The company Kroll & Ziller

Industrial gaskets for over 80 years

Kroll & Ziller develops and produces rubber-steel gaskets, metallic gaskets, wedge rings and special gaskets, which are specially designed to meet the requirements of our customers.

With this comprehensive range of industrial gaskets, Kroll & Ziller is the market leader in its field and internationally successful.

Research and development at the site in Germany, technical support and personal contacts round off the range of services.

Various products

Gaskets in stock

Satisfied customers

Years of experience

Company History


Successful testing of NBR-DUO-EL for use in contact with hydrogen

Successful testing by TÜV SÜD with hydrogen gas (H2): Kroll & Ziller’s rubber-steel flat and profile seals made of the elastomer material NBR-DUO-EL are now suitable for use in contact with hydrogen.


Gaskets for the food industry

lebensmitteltechnik dichtung

Gaskets made of EPDM-EL and NBR-DUO-EL materials have received the ISEGA safety declaration, are FDA-certified and can now be successfully used in the food sector.


Development of the G-ST-P/OE

Development of the rubber-steel profile gasket with open insert for special designs with nominal widths up to 3500 mm. This gasket is frequently used in plant and tank construction, for statically weakly designed flange connections, non-standardized flange connections and very large nominal widths.


New building and move to Hilden

After the death of the senior boss Dr.-lng. E. h. Hans J. Ziller, his four children take over the management and responsibility of the group of companies. Sales and administration of the Entrepreneurs’ Association in Düsseldorf are abandoned. In 1989, a concentration takes place in Hilden on Reisholzstrasse. The new administration, development, production and research center for the entire group of companies is built and occupied.


Development of the G-ST-P

Development of the G-ST-P profile gasket for applications in the food sector and certification for use in drinking water.


The first rubber-steel gasket

After successful foundation of the company NILOS in the field of conveyor belt equipment, it is again mining and knowledge from practice that solve another problem: The first G-ST ring (rubber-steel flange gasket) is developed. The previously used unstable rubber ring is made stable by a steel insert. The outer diameter of the ring centers itself independently in the flange on the bolt ring. Other advantages are the spherical shape and steel insert, better sealing effect and usability for higher pressures.


The foundations of the Ziller Holding is laid

Hans J. Ziller goes to school in Leipzig and studies mechanical engineering. This is not enough for him and so he completes a study to become a mining engineer. He subsequently familiarizes himself with all forms of mining found in Germany. When he joins the engineering firm Paul Wever, a trading company with agencies for technical industrial and mining supplies, in 1926, he is able to successfully apply the experience he has gained.

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    Kroll & Ziller Germany

    Reisholzstrasse 15
    40721 Hilden

    Kroll & Ziller POLSKA Sp.z oo

    Liściasta 17
    91-357 Lódž

    Kroll & Ziller CZ sro

    Mostecká 85 – Vtelno
    CZ – 434 01 Most