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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Continental has introduced the ContiMotion EVO, the successor to its well-regarded ContiMotion sport touring tyre. The new model targets motorcyclists seeking a balanced blend of riding enjoyment, safety and longevity. It arrives with multiple product enhancements over the previous generation.

Technical upgrades include new carcass materials that deliver greater stability and consistency, translating into improved handling and more agile dynamics. Updated compounds further boost performance in both wet and dry conditions. The tyre also features Continental's EasyHandling technology for predictable steering, a hybrid silica tread compound for reliable grip, an advanced compound and dedicated pattern for extended mileage and ZeroDegree steel-belt construction with new carcass materials for high-speed stability.

The ContiMotion EVO suits sporty weekend riders and touring enthusiasts alike. It fits motorcycles such as the BMW R12 nineT, Triumph Daytona 660, Ducati Supersport 950, Honda CB 650R, Suzuki GSX-8TT and Yamaha MT-09. It can also be paired with the existing ContiMotion.

Christoph Ettenhuber, Head of Business Field Motorcycle Tires, Continental, said, “With the ContiMotion EVO, we’re offering a versatile sport touring tyre. It combines intuitive handling with reliable grip in both wet and dry conditions – all while delivering impressive mileage for everyday use. The ContiMotion EVO has been upgraded in key areas without losing the fundamental renowned qualities of its predecessor. Riders benefit from a tyre that is noticeably more agile. The ContiMotion EVO is compatible with a wide range of popular naked bikes, roadsters and modern classics.”

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Goodyear takes centre stage at Silverstone this weekend as title sponsor of the Goodyear 4 Hours of Silverstone, the second consecutive year it has headlined the European Le Mans Series event following its return to the calendar last year after a six-year break.

The manufacturer will equip 37 cars across LMGT3, LMP2 and LMP2 Pro/Am with its Racing Eagle tyres. LMGT3 entrants will use the Medium compound, chosen for its adaptability across varying conditions and driving styles, while LMP2 and LMP2 Pro/Am crews run their own Medium specification, a staple of the series since debuting at Le Castellet last season. Wet-weather Racing Eagle tyres remain available should conditions demand.

Silverstone's fast nature is set to shape tactics, with fuel consumption a likely determinant of pit-stop windows. Goodyear anticipates LMGT3 outfits will favour single-stinting to maximise pace on fresh rubber at every stop, whereas LMP2 and LMP2 Pro/Am squads could split between single and double-stinting approaches.

Off-track, Goodyear has arranged several activations. Vector Sport's #10 car ran a special Goodyear Racing livery last weekend at Caffeine & Machine's Warwickshire venue and will race in the same colours. The company also backs Friday's ELMS Charity Run, where Racing Eagle tyre stacks will mark each kilometre and runners finish beneath an inflatable Goodyear arch, with proceeds going to the Luca Guintoli Foundation, supporting families affected by childhood cancer. Goodyear Racing Eagle tyres additionally feature in NASCAR action at World Wide Technology Raceway in Madison, Illinois.

Stephen Bickley, Goodyear Endurance Program Manager, said, “Silverstone should be a fairly straightforward race from a tyre strategy perspective. The high-speed nature of the circuit means fuel consumption will be high, so fuel strategy is likely to be the main factor influencing pit stop timing. The tyre allocations broadly give teams the flexibility to change tyres at every stop, so there is less of a need to stretch a set of tyres purely to save time in a pit stop. We therefore expect teams across both categories to largely focus on single-stinting tyres. The biggest variable at Silverstone is always the weather, which can quickly change stint lengths and pit stop timing.”

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The new AZuR CO₂ savings certificate gives commercial vehicle fleet operators a way to quantify and prove the emissions reductions they achieve through smarter tyre strategies. The tool turns calculated savings into transparent, verifiable documentation, allowing businesses to showcase their resource efficiency efforts. The certification sits within AZuR's wider vision of a closed-loop tyre economy, in which quality tyres are kept in service as long as possible through repair, retreading and regrooving, and materials are recovered through proper recycling channels only once further use is ruled out.

Three distinct levers form the basis of the assessment, and fleets may adopt them separately or together. Reusing sound tyre casings through retreading cuts demand for virgin materials and stretches each tyre's service life. Reprofiling technology from Bear-Machines adds as much as a quarter more mileage to compatible commercial tyres, depending on the tyre and how it is used, while simultaneously trimming fuel burn. Digital tyre management powered by CO2OPT analyses a fleet's tyre usage patterns through artificial intelligence, guiding the selection and deployment of suitable tyres; under the right operating conditions, this can shrink fuel consumption and its associated emissions by as much as 10 percent.

Reliability of the reported figures rests on a defined calculation framework applied to each fleet's own data. The retreading portion draws on life cycle assessment work from Fraunhofer UMSICHT, while the remaining measures follow their own established methodologies and fleet-specific inputs. The result is auditable evidence linking implemented tyre management practices to calculated CO₂ reductions.

Beyond emissions figures, the certificate reveals how deeply a fleet has embraced circular practices by showing its share of retreaded tyres. Three tiers structure this indicator: Category A covers fleets above 50 percent, Category B spans 25 to 50 percent and Category C captures 5 to 20 percent. Documented savings and a practical circularity measure are thus combined in a single certification.

Early adopters already illustrate the concept in action. Over a 12-month window, SIS Internationale Speditions GmbH calculated 31.99 tonnes of CO₂ saved through retreading, CO2OPT software and the fuel savings that followed, with retreaded tyres on more than half its vehicles, earning Category A. The Steinkühler Group, meanwhile, reached 44.72 tonnes of calculated savings in the same period using retreading, reprofiling, CO2OPT and resulting fuel reductions, landing in Category C.

Christina Guth, Network Coordinator, Alliance for the Future of Tires (AZuR), said, “Many companies are already investing in lower-emission vehicles and alternative drive systems. However, it is often overlooked that tyres can also make a quantifiable contribution to reducing greenhouse gas emissions. With the AZuR CO₂ savings certificate, we demonstrate how retreading, reprofiling and intelligent tyre optimisation can be combined in a joint tyre management strategy.”

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DUNLOP has premiered a new atmospheric short film titled ‘Taking the Line’, which centres on the brand’s participation in the 2026 ADAC RAVENOL Nürburgring 24 Hours. The two-minute production chronicles the journey of the black-and-yellow DUNLOP Porsche 911 GT3 R, car number 17, offering an emotive portrayal of the challenges faced during one of the world’s most gruelling endurance events.

The film, shot over a week at the legendary Nürburgring Nordschleife, employed two dedicated camera crews utilising digital cinema cameras, action cameras, car-to-car tracking and aerial drones to capture the action. The notoriously capricious Eifel mountain weather, with its fog, rain and dramatic lighting, serves as a dynamic backdrop, amplifying the drama and underscoring the circuit’s unique character.

Rather than focusing exclusively on track action, the narrative shifts following the retirement of the DUNLOP car to highlight the essential human element of the race. The production pays tribute to the mechanics, marshals, support crews, drivers and devoted fans, emphasising that the event’s spirit relies on these individuals. This approach also connects to DUNLOP’s deep-rooted heritage in motorsport, blending tradition with innovation since the invention of the pneumatic tyre.

In a notable technical achievement, the filmmakers utilised advanced artificial intelligence to reconstruct a historically accurate sequence depicting the car without using any archive footage. This innovative process, informed by extensive visual documentation and historical references, successfully bridges more than four decades of DUNLOP’s racing history, creating a new and authentic representation of its enduring legacy at the Nürburgring.

Evropi Dionysiadou, Brand Communications Specialist at Dunlop Tyre Europe GmbH and responsible for the production, said, “One of the film’s most memorable moments creates a bridge between the past and the present. As a tribute to DUNLOP’s heritage, a Porsche 962 C appears on the start-finish straight for a few seconds, bearing the same number 17 that raced at the Nürburgring on DUNLOP tyres in 1986 and 1987.”

Dennis Wilstermann, Marketing Manager, Dunlop Tyre Europe GmbH, said, “With ‘Taking the Line’, DUNLOP underlines its deep roots in motorsport. For decades, experience gained in racing has been transferred into the development of road tyres, helping us create products capable of performing in the most demanding conditions and regularly earning recognition in independent tyre tests. An icon of 24-hour racing, DUNLOP has also contributed to 34 victories at Le Mans, a legacy that continues to inspire and drive us today.”

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