The new headquarters of the Group, which has a history of 165 years of steady growth, serves the business units HF TireTech Group and HF ToolTech Group.

The designing of the new office is tuned to the needs of the Group’s forward march. Direct access from the office facilities to the assembly hall and machine testing area brings all fields of work close together and ensures optimised communication. The established and well proven production unit in Belišće, Croatia remains. Continuous investments in logistics, painting, warehousing and machining under highest economic aspects guarantee state of the art manufacturing.

Back on track

The COVID 19 pandemic and the global lockdown that came with it saw HF being tested hard for its resilience and the capability to help its partners put their production process back on track through its engineering and other services.

“For HF, partnership means to support its valued customers with benefits that will help to keep their production back on track,” says HF TireTech Group Managing Director Dr. Joern Seevers.

HF´s benefits & services for the tyre production are many:

• Technical support for restarting the HF Curing Presses

• Inspection and readjustment of mechanical settings

• Inspection of safety-related components

• Performance check and functional analysis of hydraulic/pneumatic systems

• Software check-up and functionality test

• Close coordination and supply of spare parts

• Individual training for technicians and service people for a smooth and efficient production ramp-up; trainings can take place on customers site or in Hamburg at the Group’s testing press. Virtual support is also available

Dr. Seevers said: “Together with our customers we analyse production processes, optimise, adjust to changed situations, look behind the production and develop new strategies to achieve more flexibility, increase quality, reduce costs and raw material - get into action with a higher level in automation and smart retrofitting and be ready for sustainable tyre production.”

Tandem Mixer technology:

HF takes it to the next level

HF Mixing Group is supplying Tandem Mixers for more than 15 years and has kicked off a revolution in mixing since then. The concept appears to be simple, but all those years of experience have shown that the highest degree of machine engineering has to be combined with extensive process know how to make a Tandem Mixer successful. And a mixing line is only successful if the calculated output and productivity is achieved – combined with a reliability which enables stable production for years.

As matter of fact to develop the process to mix on a Tandem Mixer takes some time and efforts – not to forget the technological know-how of the mixing process itself. HF offers the possibility to accompany this development by offering extensive trials and engineering studies – to shorten the time from ordering a machine up to the point of running in full production.

The goal of a Tandem Mixer is to reduce the specific cost of mixing a compound – on many occasions, HF has proven that overall cost reductions of 15% can be achieved compared to standard lines with a single mixer. This, in between other, is achieved by reducing the mixing steps for a PCR compound from 2,5 to 1,5 steps.

But productivity is not the only driving factor to invest in a Tandem Line – the quality of the compound overall and specifically constant and repeatable mixing of modern compounds is to be ensured. To optimise dispersion, distribution, temperature control and process stability makes a significant difference in today’s production of more complex compound recipes. The intermeshing mixers produced by HF and used in a Tandem Line guarantee to meet these requirements more than any other mixers on the market.

Experiences have shown that no compromise on quality can be made – and HF is supporting this approach with delivering a control system for Tandem Lines which enables their customers to not only run the machine efficiently but also uses online condition monitoring to always reflect on a reliable compound quality which is repeatable.

HF emphasises on result driven production concepts for its customers – further innovations in terms of integrating industry 4.0 solutions to the mixing process are on its way and the focus is clear: Intelligent machines will integrate new digital solutions into the mixing process and will ensure to meet the expectations of the future.

Brownfield projects

The COVID pandemic put a stronger focus on replacing existing machines instead of adding new capacities to a production plant. Also, productivity as well as sustainability aspects are driving many tyre companies to have a closer look to the installed base.

But inspecting a mixing line which has run for more than 15 years (or sometimes even 25 years) brings to light what challenges may come up if this line will be replaced by a new one. Output values need to be increased, a new mixer technology should improve the quality of compounds, modern automation solutions should support the daily production procedures and increase process stability – many more requirements should be met. One of the largest challenges is limited space when looking at an upgrade of machinery.

Not only the pure space but also intralogistics within a mixing line can create headache – from upstream equipment feeding a mixer all the way to downstream machinery processing the batch further – many modern solutions can be used today but looking at the available space installing them is the challenge.

With a clear focus on such brownfield projects, HF has managed several conversions from old to new with unmatched success. A key in such projects is the planning and pre-engineering process. Starting with an inspection of not only the mixer but all surrounding factors in the building – considering also the material flow – and then continuing with a 3D- scan of the existing equipment including pipe and cabling routing the basis for planning can be laid. Supported by this 3D-scan HF engineers plan and design with 3D models the complete mixing mill room.

By keeping the existing machinery as the base layer and inserting new equipment in an over-lay collisions of steel constructions, limitations in space and optimised pipe and cable routing can be identified. Furthermore, an improved process flow chart is the basis of planning material flow, work processes and even manpower to operate the new mixing line. Finally, new controls and automation solutions – on the basis of industry 4.0 – will improve operating and monitoring the equipment.

One of the largest benefits using HF’s Pre-Engineering is shortening the planning and execution time – and last but not least the reduction of financial funds is possible by starting up the new line much quicker compared to the conversion of lines in earlier years.

Safety first

Supporting all major tyre manufacturers with mixing technology HF constantly strives for improving operational procedures in the mixing mill room. When it came apparent that the variety of compounds increased more and more – driven by many more types and technologies in tyres today – the changeover times from one recipe to the other was put in the focus of operational optimisation. Not only flexible automation solutions are required but also quick availability of the mechanical equipment after the last batch of the current recipe was dispatched. In between other HF identified the cleaning of the mixing chamber as a critical action during changeover in two aspects: First it needs to be safe for the maintenance personal to enter the mixing chamber and secondly time can be saved if the access to the chamber can be optimized.

In order to meet both requirements HF’s engineers designed a maintenance box, the so-called mBox©, which is mechanically integrated directly underneath the mixer – combining the mixer with the chute of a dump extruder for example.

In the moment the mixing line is switched to cleaning mode and all movements of parts are blocked a moveable platform – the floor of the maintenance box – is inserted horizontally underneath the mixer. A door of the box can be opened, and maintenance personnel can enter the box safe and secure, standing underneath the mixer with easy access to the mixing chamber.

Besides the safe working environment customers from HF have noticed saving time and having the opportunity of even inspecting the mixing chamber easier and more frequent during a changeover.

Especially in new installations of a mixing line the mBox© can be integrated in the design of the line easily and right from the start – benefitting the safety and operation of the line daily.

HF Screw Presses

The production of screw presses is one of HF`s core competences for decades. The screw press has gained recognition during its affiliation with KRUPP. Thus, the presses operate all over the world and more than 2.500 presses are installed in various industries for example the edible oil industry, biomass technology and rendering. And, most interesting for the tyre industry, the presses accomplish benchmarking results in the dewatering of natural and synthetic caoutchouc. As a more efficient and space saving solution instead of band dryer systems or similar the screw press has its strong eligibility in dewatering process.

HF Curemaster

HF brought the first hydraulic column type curing press to the tyre industry in 1997. Since then, it continued to develop this product to meet the demanding requirements of its customers.

The HF Curemaster was launched two years ago and since then the patented truck tyre curing press has been successfully installed in multiple locations and in efficient operation. The press provides a flexible and compact footprint, making it possible to replace older presses with potentially more presses per existing trench.

The HF Curemaster also focuses on optimising energy efficiency to ensure the lowest total cost of ownership in the curing plant. The HF Curemaster´s hood design incorporates insulation inside the hood to provides the best insulation effect. In addition, the HF Curemaster provides an extremely fast cycle time to minimise the overall amount of heat loss during the open and close sequence of the press.

HF PCR Design

Delivering for a new greenfield plant is relatively straightforward. However, HF understands the important need of the replacement market as well. It is important to be flexible to meet all the varying trench layouts (pit, shelf, pitless, and so on). Equally important is the need to be able to replace existing 42” – 45” old mechanical presses with 48” – 52” modern presses in order to meet the growing demand for larger tyre sizes.

All replacement projects are analysed carefully together with customers. Attention is paid closely to all details related to operation, maintenance access, mould & bladder change requirements as well as all local safety regulations. HF´s long experience with curing presses provides a large variety of modular options to be used for finding the optimised fit for each specific request.

HF Stack Passenger Car Inflator (PCI)

The requirement for post cured tyres continues to grow in the market and HF has designed a simple and compact solution that can be incorporated in all HF presses as well as behind most all existing older presses.

The patented HF Stack PCI design allows for the PCI to be integrated into even the tightest footprints. This solution eliminates any movement or rotations of the PCI body itself and greatly reduces the amount of moving mechanical components and maintenance.

HF Digitalisation

HF recognises the important trend of digitalisation for the tyre manufacturers and has developed reliable, customised software solutions for machine data communication between machine control and customer IT systems. The main steps were to focus on MES, SCADA and Recipe Management interfaces.

HF Smart Curing enables customers to get started quickly and effectively with a future-oriented digitisation solution. The main advantage in this case is that software for machine data acquisition is supplied directly by the supplier and not by IT service providers.

OPC server technology and efficient network solutions are tailored to the machine enable secure data acquisition. This software can provide feedback in regard to condition monitoring, diagnostic function, machine services, energy monitoring and remote service.

The benefit of connecting your equipment with digitalised solutions clearly accelerates a target-oriented development and improves the Total Cost of Ownership of the equipment.

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Liberty Tire Recycling, North America’s largest tyre recycling company, has published its 2024 Sustainability Report, detailing continued advancements towards a circular economy. Over the course of the year, the firm collected more than 215 million end-of-life tyres and reclaimed over 4.7 billion pounds (approximately 2.13 billion kg) of rubber, which was transformed into recycled products for infrastructure, manufacturing and energy recovery.

The report highlights measurable environmental and safety gains alongside company growth and acquisitions. Liberty achieved a 1.5 percent year-over-year reduction in greenhouse gas emissions, an 81.1 percent end-market utilisation rate representing a 2.7 percent increase from 2023 and notable safety improvements including a 23.87 percent drop in the Total Recordable Incident Rate and a 29.25 percent reduction in the Preventable Vehicle Accident Rate.

Beyond operational metrics, Liberty donated more than USD 150,000 to charities and completed over 75 community projects. A key partnership with Blessings in a Backpack led to the packing of 5,250 meal kits for children, reinforcing the company’s broader commitment to social responsibility alongside its environmental and safety achievements.

Thomas Womble, CEO, Liberty Tire Recycling, said, “At Liberty, we don’t just recycle tyres – we partner with others to build a better future. Whether it’s a global manufacturer, a local retailer or a city government, our partners trust Liberty to help them meet their sustainability goals and do right by their communities. This report is a reflection of what responsible growth looks like – when innovation, impact and partnership work hand in hand.”

Amy Brackin, Senior Vice President – Sustainability, Liberty Tire Recycling, said, “Our work is grounded in action and accountability. As the only North American tyre recycling company to publish a sustainability report, we’re setting the standard for transparency in our industry. From emissions management to zero-waste goals, we’re proving that it’s possible to grow responsibly – moving more material up the value chain, investing in our people and rethinking how tyres can create value long after they leave the road.”

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Pirelli has confirmed that India will be the central theme of its 2027 calendar, marking a historic first for the publication. For the first time since the calendar’s inception, two distinct photographers have been commissioned to work on the project: Norwegian artist Sølve Sundsbø and celebrated Indian master Raghu Rai. Deep sorrow has followed Rai’s recent passing, felt profoundly by his family and those who collaborated with him. In the three months before his death, Rai had been fully dedicated to developing an original photographic series rooted in his heritage and personal vision of India.

Pirelli and the Rai family have pledged to complete Rai’s contribution to the calendar. Stepping into his role with honour is his daughter, Avani Rai, an internationally acclaimed photographer in her own right. She will work to faithfully realise her father’s artistic intentions for the series, ensuring his creative vision endures.

Alongside this effort, Pirelli has gladly invited Sundsbø back for a second consecutive year, following his work on the 2026 edition. His signature sensitivity and innovative aesthetic will combine with Avani Rai’s intimate knowledge of her father’s craft and her own personal experience of India, offering two compelling and complementary perspectives on the country.

Avani Rai said, “The work my father created for Pirelli was a tribute to India – bringing together his lifelong vision with a more contemporary expression of its people and diversity, something he was always deeply drawn to. I cannot bear the thought of it remaining unrealised. Bringing it to life feels deeply personal, as if I am stepping into his gaze and the way he saw India through his camera. Photography was his gift to me – not just as a craft, but as a way of seeing – and in that we found a quiet, profound connection. Carrying this forward feels like a way of staying close to him, of keeping a part of him alive within me.”

Sundsbø said, “It’s a great honour to be invited again to contribute to the Pirelli Calendar. I am very pleased to do so alongside Avani Rai and pay tribute to her father’s legacy. It’s a momentous opportunity to explore India. We will both do our utmost to celebrate the country and Rai’s memory with this collaboration.”

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Goodyear has introduced a new global campaign titled ‘Fast Is In Us’, dedicated to celebrating its renowned Eagle performance tyre family. The campaign debuted at the Kentucky Derby and follows last year’s STILL campaign, which underscored Goodyear’s iconic status. Fast Is In Us builds upon that foundation to elevate the Eagle legacy further.

Rather than focusing solely on traditional speed, the campaign highlights individuals deeply passionate about automobiles. It honours their appreciation for vehicle design, engineering and the tactile connection through the steering wheel. Fast Is In Us shifts attention from raw velocity to the emotional bond between driver and machine, celebrating those who feel performance rather than merely claim it.

The Eagle tyre family’s decades-long performance pedigree grounds the campaign, shaped in elite motorsport environments and high-performance automotive partnerships. After 45 years and millions of drivers, Eagle enters a new era believing fast is inherent to its design. This marks Goodyear’s first global campaign built around a performance tyre family, inviting drivers to embrace Eagle as a living philosophy rather than a one-off product.

The campaign will roll out globally across premium television, out-of-home, digital, social and cultural events. At the Kentucky Derby, the Goodyear Blimp carried the phrase Did someone say horsepower? Future integrations include the 24 Hours of Le Mans and other elite racing gatherings. Created with Publicis P1T Crew and led by BBH USA, Fast Is In Us aims to remind performance drivers why Eagle has always belonged with them.

Mark Stewart, Chief Executive Officer and President, Goodyear, said, "The performance car category is growing, and the drivers entering it want tyres worth bragging about. Eagle has more than four decades of credibility in performance and racing, and Fast Is In Us puts that legacy back to work – re‑establishing Eagle as the tyre knowledgeable drivers choose when performance truly matters. This campaign reflects how we're building Goodyear for the future: leading with premium products, authentic performance and brands that mean something."

J J Kraft, VP Global Creative, Goodyear, said, "Eagle isn't a product line – it's a piece of car culture. Fast Is In Us is a comprehensive platform built to put Eagle back at the centre of that enthusiasm. It expresses performance through feel and confidence behind the wheel, not just numbers on a page. It stands as one global campaign idea with the range to live across motorsport, retail and culture, and the ambition to lead the category, not chase it."

"For these drivers, Eagle is more than a tyre, it's a badge of devotion for drivers who respect the craft behind performance and demand confidence, responsiveness, and control every time they drive. Fast, in this world, isn't something you switch on. It's something you live," Kraft added.

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A comprehensive scientific review released under the umbrella of the Tire Industry Project (TIP) has concluded that despite significant advances in understanding tyre wear emissions, current data remains insufficient to quantify their direct impact on human health. The final paper in a three-part ‘State of Knowledge’ (SoK) series, supported by TIP as part of the World Business Council for Sustainable Development, analysed over 850 peer-reviewed studies to assess global research on tyre and road wear particles. The authors found that inconsistencies in sampling approaches, detection techniques and analytical methodologies across studies prevent reliable comparison and robust risk assessment. As a result, while interest in the topic has grown, the evidence linking tyre emissions to specific health outcomes remains inconclusive.

According to the review, tyre wear particles constitute only a small fraction of total airborne particulate matter, typically less than five percent of PM2.5 and PM10 in urban environments. Toxicological data from both in vivo and in vitro studies indicate that tyre and road wear particles are no more harmful than general ambient particulate matter, with effects that are similar to or less potent than those of other airborne particle types. Although chemicals used in tyre manufacturing have been detected in human body fluids, the authors stress that these substances are also widely used in other applications, making it impossible to clearly attribute exposure to tyres as the primary source.

The paper, independently authored by Kathrin Müller, Julie Panko, Kenny M Unice and Dr Stephan Wagner, identifies the lack of harmonised global methods for sampling, analysing and characterising tyre wear emissions as a major barrier to drawing firm conclusions. This call for greater methodological consistency aligns with the findings of the first two SoK papers published in 2025, which examined the characterisation, quantification and environmental impacts of tyre wear emissions. Without standardised approaches, meaningful comparison across studies and reliable exposure or risk assessment remain unattainable.

Looking forward, the authors recommend that future research prioritise the identification of potential exposure pathways and examine relevant health outcomes, including chronic effects, under realistic conditions. Such studies should cover urban and suburban populations across different global regions to ensure comprehensive and applicable findings. The SoK series, representing the most extensive review of global science on tyre wear emissions to date, underscores the need for coordinated international efforts to improve the identification, measurement, and attribution of these particles in both environmental and human health contexts.

Dr Wagner, one of the leading researchers of Paper 3, said, “Tyre wear emissions are a complex topic that we still only partly understand, especially in relation to human health. While research has advanced our understanding of TRWP, the current data simply isn’t robust enough to quantify any potential health risks specifically linked to tyre wear. Looking forward, cross-stakeholder collaboration is fundamental to making rapid progress. By aligning methods, sharing data and focusing on real-world studies, we can build a stronger, more consistent evidence base to inform future decisions.”

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