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.

Citira has expanded its service network in western Sweden by acquiring TH Pettersson, a renowned tyre service company with two shops in the Gothenburg area. This acquisition adds two key service points positioned close to the region's major traffic and logistics hubs, significantly advancing Citira's coverage in this strategic area.

TH Pettersson holds a distinguished place in Swedish commercial history as one of the oldest tyre shops in the country, having been founded in 1923. From modest origins, the business grew to achieve a strong national reputation under the guidance of three generations of entrepreneurs who maintained a long-term value creation and service-driven philosophy. The two well-situated shops will now form crucial new service points within the Citira network.

The business will continue operating with the same team in the same premises, ensuring continuity for customers and staff alike. David Heidenfors, the long-term manager, together with the broader TH Pettersson team, will continue managing daily operations while benefiting from Citira's resources for continued development. As part of this new chapter, both Max Petersfeldt and Mikael Petersfelt will become co-owners of Citira.

David Boman, CEO, Citira, said, “We are very excited that TH Pettersson will join Citira, as we have regarded them as a key player in the Gothenburg area for a long time. The team delivers great service to their customers, which will now come to the benefit of our customers as well. In TH Pettersson, we have a great partner on Sweden’s west coast, which we look forward to further developing and growing together with David, the TH team and Max as a senior advisor.”

Max Petersfeldt of TH Pettersson said, “Joining Citira and a group of like-minded colleagues marks an important milestone in our journey while also allowing us to be part of and contribute to this exciting development in our industry. I am confident that under the continued leadership of David Heidenfors, Citira and TH Pettersson will realise our full potential in the region while allowing us to stay true to our customers, who will find us in the same place with the same team which they have always trusted.”

Bridgestone has renewed its collaboration with game developer Milestone for the launch of RIDE 6, the latest title in the popular motorcycle racing franchise. This edition represents the most comprehensive instalment in the series to date, introducing new motorcycles, diverse terrains and authentic tracks. Continuing its role as the official tyre supplier, Bridgestone brings its real-world high-performance motorcycle tyres into the virtual environment. Players around the world can now experience the same grip and endurance that define the brand’s real-life products across roads, circuits and trails, thanks to the game’s updated dual-physics engine.

A major feature in this edition is the new RIDE Fest career mode, which immerses players in the journey of a professional rider competing against motorsport icons such as Casey Stoner and Troy Bayliss. Within this mode, a dedicated Bridgestone Challenge chapter allows users to test the brand’s tyres across various racing disciplines and surfaces, from endurance events to circuit racing. Bridgestone also sponsors the redesigned Riding School, a training module offering structured tutorials to help players refine their skills. The company’s motorsport expertise, particularly its success in the FIM Endurance World Championship, directly informs the tyre behaviour modelled in the game. Virtual riders must consider tyre degradation, respond to changing track conditions and make tactical choices, mirroring the strategic depth found in real-world racing.

The presence of Bridgestone has been expanded throughout RIDE 6, with enhanced branding featured across menus, tracks and gameplay elements. The tyre lineup itself has grown to include recent additions to the BATTLAX family, such as the RACING BATTLAX V03 slick, engineered for maximum circuit performance and faster lap times, alongside the road-legal RACING STREET RS12, which offers superior dry grip. For the first time in the series, off-road segments are included, enabling players to equip adventure-focused tyres like the BATTLAX ADVENTURECROSS AX41. Other available options include the ADVENTURE TRAIL AT41, the RACING BATTLAX W01 and the HYPERSPORT S23.

With more than 340 motorcycles from 21 manufacturers, all fitted with Bridgestone’s virtual tyre models, the game boasts the most varied selection in the franchise’s history. Built using Unreal Engine 5, RIDE 6 is now accessible on PlayStation 5, Xbox Series X|S and PC through Steam and the Epic Games Store.

Nico Thuy, Director Motorcycle at Bridgestone EMEA, said, “RIDE 6 is the most realistic and wide-ranging entry in the series so far, and that makes it the ideal platform to showcase our large premium motorcycle tyre portfolio and its performance. With expanded modes, new features and a stronger Bridgestone presence throughout the experience than ever before, the game takes our longstanding partnership with Milestone to the next level. Through the RIDE series, we’re both strengthening our leadership in motorcycle tyres and showcasing our racing legacy in a fun, engaging way to riders and gamers worldwide.”

Porsche Carrera Cup North America is entering a new chapter defined by a significant technical partnership and the introduction of an updated race car. A multi-year agreement has been established making Pirelli the official tyre supplier for the championship, marking the first time in the series' six-year history that it will compete on Pirelli rubber. This collaboration reinforces the connection between motorsport engineering and road car performance, a link demonstrated by the bespoke Pirelli P Zero R and P Zero Trofeo RS tyres developed for the road-going Porsche 911 GT3.

The 2026 season will debut the new Type 992.2 Porsche 911 Cup car, an evolution of the brand's successful single-make racer with refinements focused on raceability and handling. It will compete in only four global championships, including the North American series. These cars will be fitted with the Pirelli P Zero DHG tyre, a control tyre already introduced across Pirelli’s global GT championships in 2025. For wet conditions, teams will use the Pirelli Cinturato WHB, the standard wet weather tyre for GT classes since last year.

The P Zero tyres used in the series will carry the Forest Stewardship Council logo, signifying a commitment to sustainable sourcing. This certification ensures the natural rubber originates from forests managed to preserve biodiversity and support local communities, with a supply chain that rigorously separates certified materials from non-certified sources.

The new partnership and the new car will make their on-track debut together during a series-wide test at Sebring International Raceway in mid-February. The 2026 championship season will officially commence at the same venue from 18th to 20th March, running in support of the IMSA WeatherTech Championship’s Mobil 1 Twelve Hours of Sebring.

Volker Holzmeyer, President and CEO, PMNA, said, “Porsche and Pirelli share a deep motorsport heritage and a commitment to innovation that carries from the track to the road. We’re excited to welcome Pirelli to our premier Porsche One-Make series as we usher in a new era with the 911 Cup and new Pirelli tyres beginning in 2026.”

Claudio Zanardo, President and CEO, Pirelli North America, said, “Pirelli is thrilled to partner with Porsche Motorsport North America as the tyre supplier for the Porsche Carrera Cup North America, adding to our extensive portfolio of top-level championships supported worldwide. This collaboration demonstrates Pirelli’s dedication to performance and innovation, bringing race-proven technology from the track to the road. Just as Porsche vehicles set the standard for driving excellence, our P Zero tyres define precision, handling and performance in both competition and everyday driving. With motorsport rapidly expanding across North America, attracting more fans and creating new opportunities to showcase high-performance engineering, we are excited to strengthen our presence and support this momentum. Taking on this challenge alongside Porsche, its teams, drivers and the iconic 911 Cup cars is an opportunity for continuous innovation, collaboration and growth throughout the season.”

Nova Motorsport has solidified its position within historic motorsport by agreeing a significant long-term contract extension with Peter Auto, a leading organiser in the field. This renewed agreement reinforces the British brand’s status as a principal technical collaborator, now with an expanded scope of official supply duties.

Under the terms of the multi-year deal, Nova Motorsport will continue as the exclusive tyre provider for several of Peter Auto’s premier series, including Group C Racing, both Classic Endurance Racing categories (CER1 and CER2) and the 2.0L Cup. The partnership has been formally broadened to now also encompass the Sixties’ Endurance series, a key addition to its portfolio. This season for Sixties’ Endurance is set to run from the Espíritu De Montjuïc event in late March through to the HSR Daytona Classic 24 Hour in November.

The arrangement is a cornerstone of Nova’s historic racing programme, underlining its dedication to supplying proven Avon Motorsport tyre products across Europe’s most esteemed historic platforms. This capability is underpinned by the intellectual property and experienced technical team that transferred to Nova following its 2024 acquisition of Avon Motorsport’s assets from Cooper Tire. Logistical and trackside support for competitors will once again be managed by Peter Auto’s exclusive service partner Sodipneu.

By extending and deepening this relationship, Nova Motorsport strengthens its commitment to the historic endurance racing community. The partnership is poised to support the continued growth and international prestige of Peter Auto’s renowned series, placing Nova at the very heart of the discipline.

Daniel Stanton, Head – Sales and Marketing, Nova Motorsport, said, “We are proud to extend our longstanding partnership with Peter Auto, one of the most respected names in the historic and classic automotive racing community, through a new long-term agreement. This relationship marks the successful transformation of Avon Motorsport into Nova Motorsport, as Peter Auto enters the ASO/ACO era under the leadership of Marc Ouayoun. Historic motorsport sits at the heart of the Nova Motorsport business, and partnering with Europe’s premier historic race championships is the perfect expression of that focus. Adding the Sixties’ Endurance series, which concludes with the HSR Daytona Classic 24 Hour at Daytona Speedway in November, to the Nova Motorsport portfolio accelerates our core strategy and further aligns with our growth targets for the Nova Motorsport brand and Avon and Nova tyre products in North America.”

Marc Ouayoun, Managing Director, Peter Auto, said, “We are delighted to continue and expand our partnership with Nova Motorsport. This collaboration reflects a shared vision based on technical excellence and reliability to ensure authentic and competitive racing across all our series. This partnership also highlights our commitment to historic motorsport and its development, both in Europe and internationally.”