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.

UTAC, a prominent player in the automotive testing, inspection and certification sector, is significantly broadening its footprint in China. The company has unveiled plans for a cutting-edge proving ground in Huainan, situated in the central province of Anhui. This ambitious project is being developed through a collaboration with the Huainan City Government and is set to become the primary strategic hub for the UTAC Group’s operations within the country. By establishing this facility, UTAC aims to bolster the mobility industry with top-tier testing capabilities and specialised knowledge.

The new site will enable UTAC’s team of specialists to offer homologation and testing services that align with the most current international benchmarks and regulatory standards. This initiative is a direct continuation of the group’s overarching goal to foster a mobility landscape that is both safer and more environmentally friendly. The Huainan facility is designed to be comprehensive, featuring a variety of specialised tracks for vehicle testing, along with a technology park that includes rentable workshops and office spaces. It will also house a dedicated conference and exhibition centre and purpose-built laboratories outfitted with state-of-the-art equipment. These labs will be specifically geared towards testing the latest advancements in new energy vehicles.

Anhui province itself provides a rich environment for such an investment. Home to 70 million people, it hosts a dense and extensive mobility ecosystem. Major automotive manufacturers like BYD, Changan, Chery, JAC, NIO and Volkswagen, together with their extensive supply networks, are deeply embedded in the region. The province’s manufacturing prowess is underscored by its production of roughly 3.7 million vehicles in 2023, a figure that positions Anhui as China’s leader in overall vehicle manufacturing, new-energy vehicle production and vehicle exports. Consequently, the new proving ground in Huainan is poised to become a vital strategic component for UTAC, solidifying its presence in this central hub of the Chinese mobility industry.

Connor McCormack, CEO, UTAC, said, " We are extremely proud of our partnership with the city of Huainan, which is undergoing a significant transformation to support the future of the automotive industry. UTAC is delighted to contribute to this transformation and to bring our 100 years of specialist expertise, along with the European standards we have helped shape and validate, to China’s vital automotive sector.”

Mayor Zhang Zhiqiang of Huainan City said, “This represents a significant milestone in Huainan's efforts to accelerate the development of its intelligent connected vehicle industry. It is of great importance in bridging the critical gap in the regional automotive sector’s industrial chain of ‘testing-production-export' and establishing a specialised vehicle testing and certification platform with international recognition. The successful cooperation on this project will undoubtedly advance the high-end and intelligent transformation of the regional automotive industry, providing strong impetus for Anhui Province's efforts to foster a new energy vehicle industrial cluster with international competitiveness.”

DUNLOP Tyre Europe GmbH (DUNLOP) is preparing to introduce its latest innovation, the BLUE RESPONSE TG, an all-new summer tyre engineered to advance safety, efficiency and driving dynamics. This model marks a significant milestone as the first DUNLOP summer tyre developed by Sumitomo Rubber Industries (SRI) and will make its official debut this weekend at the Circuito de Sevilla in Spain. The 4.2-kilometre track, known for its 16 corners and lengthy 822-metre straight, provides a demanding environment ideal for showcasing the tyre’s capabilities. Under the theme ‘the art of perfect balance’, the BLUE RESPONSE TG will undergo rigorous evaluation on the Spanish circuit to demonstrate its well-rounded performance.

A dynamic launch event has been arranged to give 120 attendees, including customers, journalists and influencers, a firsthand look at the tyre’s abilities across multiple conditions. Participants will engage in slalom exercises on both dry and wet surfaces, while braking and obstacle avoidance drills will highlight stopping power and responsiveness. Handling assessments will allow for direct comparison with rival products, focusing on cornering stability and steering accuracy. Additional tests will examine comfort and noise levels, emphasising rolling smoothness and sound reduction, as well as efficiency, showcasing lower rolling resistance and reduced fuel consumption. The experience will be complemented by guided road drives and track laps, offering a thorough perspective on the tyre’s dynamic qualities.

To illustrate the versatility of the BLUE RESPONSE TG, the test fleet includes a diverse selection of modern vehicles. Among them are the Audi e-tron, BMW 5 Series, Mercedes-Benz EQE, Mercedes-Benz G-Class, Toyota GR Yaris and Nissan GT-R R35, spanning from premium electric cars to high-performance sports machines. Developed specifically for contemporary vehicle platforms, the tyre integrates an advanced tread design, a novel rubber compound and a reinforced construction. These elements work together to deliver precise handling, short braking distances, strong wet grip and low rolling resistance, catering to drivers seeking safety, comfort and stability in both routine travel and more demanding scenarios.

Markus Bögner, President and Managing Director, DUNLOP Tyre Europe, said, “This is our first DUNLOP event since the acquisition, which is precisely why the launch of our summer tyre is so important to us. Direct interaction with customers and the media here on site is crucial for us, as it is the only way we can hear their perspectives and continue to develop in a targeted manner.”

Vittoria has unveiled the next generation of its Air-Liner Light Road, an ultralight tubeless insert refined to satisfy the rigorous demands of contemporary road cycling. Building upon its predecessor, this iteration features a completely overhauled material composition and a novel manufacturing technique that elevates performance, simplifies setup and enhances dependability, all while maintaining its featherlight profile.

Engineered with input from WorldTour professionals, the Air-Liner Light Road delivers puncture support, steadfast bead security and consistent rim defence without diminishing ride quality. The pivotal advancement lies in the transition to an extrusion process. This shift produces a structure with more uniform closed cells and a smoother exterior.

The new material significantly minimises sealant absorption, permitting the use of up to 10 percent less sealant. For optimal protection, it is advised to add 10 ml more than a standard tubeless setup. In the event of a flat, the enhanced run-flat capability delivers a ride comparable to approximately 14.5 psi, allowing a rider to continue for up to 50 kilometres.

Installation is more effortless, as reduced internal friction helps the insert settle perfectly. It also diminishes the likelihood of tyre burping by 28 percent at lower pressures compared to setups without an insert. Remarkably, these enhancements are achieved without any weight penalty, with each unit ranging from 30 to 40 grammes.

Functioning as a dynamic component, the insert expands upon air loss to facilitate run-flat mode. Beyond emergency support, it empowers riders to safely utilise lower pressures for heightened grip and comfort, effectively absorbing shocks from rough pavement.

Having been tested by Vittoria's professional teams, the Air-Liner Light Road is already a staple for many riders. To ensure a perfect match, Vittoria has printed tyre width compatibility directly on the insert. This new model completes the Air-Liner range, providing a dedicated solution for every discipline. With cyclists prioritising precise pressures for optimal performance, this insert answers the call for greater safety and reliability, extending benefits beyond the competitive peloton. Each insert comes supplied with a Vittoria Multiway Tubeless valve.

Stijn Vriends, Chairman & CEO, Vittoria, said, “At Vittoria, our objective is to elevate every cyclist’s ride. With our new generation of Air-Liner for road, we complete our vision of total tyre system performance across every terrain. From the WorldTour to everyday riders, from smooth asphalt to rough gravel sections, we give cyclists the confidence to ride faster, further and with complete peace of mind – because performance should never stop when the road gets tough!”

Andreas Klier, Technical Operations and Commercial Manager, EF Education-EasyPost, said, “The new Air-Liner Light Road is a real gamechanger. In races like the Northern Classics, it gives us greater control and confidence on rough roads and pavé, letting us ride at lower pressures without compromising performance or safety.”

The German Rubber Industry Association (wdk) has issued a statement highlighting the severe threats the ongoing geopolitical crisis involving Iran poses to the nation's rubber value chain. Michael Klein, the association's President, warned in Frankfurt am Main that this new conflict could create existential difficulties for the sector. He reiterated the industry's longstanding appeal to policymakers, stressing that persistently high energy costs have been jeopardising the chemical industry, a fundamental pillar of the German economy, for some time.

The statement points out that the manufacturing sector is already beginning to feel the initial significant repercussions of the military conflict that recently escalated in and around Iran. A primary concern is the disruption to the global gas supply, which risks sustaining long-term damage. Although Germany is not directly impacted by supply cuts from Iran, the conflict has strained global fossil fuel availability to a point where demand cannot be satisfied, inevitably leading to shifts in supply chains and pronounced price increases.

According to Klein, European chemical manufacturers, who are vital suppliers to the German and European rubber industry, are being disproportionately affected by these rising gas prices. He underscored that German companies now face energy costs three times higher than those in United States. The association's president expressed alarm over the closure of significant petrochemical facilities in Germany during 2025, questioning how many more external shocks are necessary for political leaders to counteract the price implications of their own regulations. As an initial and essential step, the wdk is calling for the repeal of the Fuel Emissions Trading Act. At a minimum, they demand its temporary suspension for fuels used to generate industrial process heat, viewing this as just a starting point for much-needed regulatory relief.