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Zeppelin Sustainable Tire Alliance

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Zeppelin Sustainable Tire Alliance
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Zeppelin Sustainable Tire Alliance

Zeppelin Sustainable Tire Alliance

A strong international technology alliance

Driving innovation forward together

In times of growing environmental impact, rising energy costs, and increasing resource scarcity, it is more important than ever to use available raw materials sustainably and circulate them multiple times within the economy. Cutting-edge production technologies for tire manufacturing—and especially the recycling of end-of-life tires—play a key role in this effort.

In 2023, international companies active along the entire value chain of tire production and recycling joined forces to form the Zeppelin Sustainable Tire Alliance (ZSTA). Together, they are advancing innovative technologies that make tire manufacturing and recycling more sustainable and efficient.


Each partner is a specialist in its respective field and offers customized solutions for end customers. Zeppelin Systems contributes its expertise in the integration of diverse technologies and processes from a holistic perspective—serving as a bridge builder and system integrator in the tire-to-tire production cycle. The technologies and processes offered cover both material and chemical recycling, enabling the production of recyclates that can be reused in new tires and many other products. In many cases, these technologies can also be integrated into or retrofitted into existing plants.

Together with the strong partners of the Zeppelin Sustainable Tire Alliance, we are the ideal solution provider and leading system integrator in the industry for sustainable tire production.

Strong partners

Simple and cost-effective devulcanization of rubber using a planetary roller extruder

ENTEX Rust & Mitschke GmbH

Simple and cost-effective devulcanization of rubber using a planetary roller extruder

ENTEX Rust & Mitschke GmbH is a leading manufacturer of planetary roller extruders. Their process breaks sulfur bonds under precisely controlled pressure and temperature conditions—without degrading the carbon chains of the rubber. The resulting devulcanized rubber can be reused in the production of new tires. The process is simple, cost-effective, and free of chemicals.

ENTEX Websiteexternal-link
With POLYVEST® ST for a sustainable improvement in tire performance

Evonik Industries AG

With POLYVEST® ST for a sustainable improvement in tire performance

Evonik has developed POLYVEST® ST, an additive that blends ideally with (recycled) rubber to optimize the silica/silane system. It enhances wet grip, improves abrasion resistance, reduces fine dust emissions, lowers rolling resistance, and contributes to fuel savings—ultimately helping to reduce CO₂ emissions.

EVONIK Websiteexternal-link
Refinement of raw recovered carbon black

RCB Nanotechnologies GmbH

Refinement of raw recovered carbon black

RCB Nanotechnologies GmbH has developed a process to refine the carbon-rich residue from end-of-life tire pyrolysis, known as recovered carbon black (rCB). In this process, the ash content—consisting of up to 25% silicates and zinc—is separated from the rCB, making the material fully usable. Additionally, high-quality zinc and silicon products are recovered from the ash, enabling the closure of further material loops within the tire industry.

RCB Nanotechnologies Websiteexternal-link
End-of-life tires provide textile fibers that can be processed into stabilizers for asphalt mixtures.

Recykl Organizacja Odzysku S.A.

End-of-life tires provide textile fibers that can be processed into stabilizers for asphalt mixtures.

The Polish company Recykl Organizacja Odzysku S.A., part of the Recykl Group (GRC), has been actively engaged in end-of-life tire processing since 2004. Within mechanical recycling, the company has developed new processes—particularly in rubber devulcanization—that produce high-quality recyclates. These can be reintegrated directly by customers into the production cycle of new tires.

Recykl Websiteexternal-link
Sorting of end-of-life tires using artificial intelligence

REGOM Machinery

Sorting of end-of-life tires using artificial intelligence

The French company REGOM uses artificial intelligence to sort end-of-life tires quickly and precisely. By reading the tire sidewall, the system identifies the brand, model, size, and wear level. Depending on the condition, the tire is either prepared for reuse or shredded. This precise sorting process significantly improves the purity of the resulting recyclates.

REGOM Websiteexternal-link
Specialist in pyrolysis

Reoil Sp. z o.o.

Specialist in pyrolysis

The Polish company ReOil, Europe’s largest pyrolysis plant operator, recycles rubber from end-of-life tires into gas, oil, and recovered carbon black (rCB). These recyclates are used in textiles, tires, plastics, steel, and fuel. Since 2015, ReOil has been recycling 20,000 tons of tires annually. Starting in 2024, a new facility is set to increase that capacity to 60,000 tons per year.

Reoil Websiteexternal-link
End-of-life tire dismantling using a 100% environmentally friendly high-pressure water jet process

RubberJet Group

End-of-life tire dismantling using a 100% environmentally friendly high-pressure water jet process

The Italian group RubberJet and Vertech recycles large end-of-life tires—such as truck and mining tires—using a patented high-pressure water jet process. In this environmentally friendly method, rubber and steel are separated without chemicals, and the resulting high-quality rubber recyclate—with a high natural rubber content—features an optimized surface structure ideal for re-crosslinking. This allows it to be directly reused and marketed in the production of new tires or rubber compounds.

RubberJet Websiteexternal-link
Innovation driver in automation and digitalization

Siemens AG

Innovation driver in automation and digitalization

Siemens AG supports the industry with advanced automation and digitalization technologies—such as digital twins—to optimize sustainable tire production as part of the Zeppelin Sustainable Tire Alliance. These solutions enable seamless information flows, simulation of sustainability impacts, and efficient process optimization. In addition, Siemens promotes decarbonization with its SaaS solution SiGreen, which provides transparent CO₂ footprints along the entire value chain.

Siemens Websiteexternal-link

Mission & Goals

Innovation for a better future

Innovation for a better future

As a partner of the Zeppelin Sustainable Tire Alliance and within the framework of our collaborative technology network, all members act in alignment with a shared mission: The Zeppelin Sustainable Tire Alliance delivers solutions for sustainable tire manufacturing, tire recycling, rubber production, and material handling—with the aim of conserving the Earth’s precious resources.


Creating solutions together
By connecting and promoting the unique and innovative expertise of international partners across the entire tire production and recycling process, the Zeppelin Sustainable Tire Alliance jointly and synergistically drives forward the sustainable production of tires—already today for a better tomorrow.


From sustainable material and chemical recycling to the purification and refinement of recyclates into high-quality secondary raw materials, the Alliance is committed to making tire production more sustainable and increasing the availability of premium recyclates.

As a leading plant engineering company in the tire sector and founder of the Sustainable Tire Alliance, Zeppelin Systemsis focused on the future and actively invests in sustainability and innovation. Together with strong international partners, Zeppelin and the Alliance are promoting the circular economy in the rubber and tire industry.


We Create Solutions!

Services

Discover our comprehensive range of services

Industrial-scale testing

Zeppelin Technical Center

Industrial-scale testing

Testing is good; testing at a 1:1 scale under real-world conditions is even better. To support this, we have established optimal facilities at our Friedrichshafen technical center: based on your recipe and desired throughput, we identify the plant technology tailored to your needs—and test the complete system for you in live operation.

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Automation with foresight

Automation

Automation with foresight

Above all, your plant must do one thing: run and deliver. That’s why we provide you with reliable, professional service. Rely on our global service network for expert consultation and extremely fast spare-parts supply to minimize downtime. When needed, we’re also at your side digitally—from virtual troubleshooting to online-supported commissioning.

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Service without compromise

Service

Service without compromise

In the 21st century, optimization often means automation. We ensure that your automation project is a complete success in terms of both efficiency and cost-effectiveness. To achieve this, we rely on cutting-edge control systems whose open architectures prepare you for the challenges of tomorrow—and beyond.

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Resources

Brochures for download

ZEPPELIN SUSTAINABLE TIRE ALLIANCE

ZEPPELIN SUSTAINABLE TIRE ALLIANCE

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