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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The Alliance for the Future of Tires (AZuR) is at the centre of a new industrial paradigm, as a recent study by the Boston Consulting Group (BCG) for the Federation of German Industries (BDI) confirms that the circular economy is becoming a decisive competitive factor for Germany. The analysis projects that circular gross value added could more than double from roughly EUR 60 billion (approximately USD 69.60 billion) today to up to EUR 125 billion (approximately USD 144.95 billion) annually by 2045, cumulatively unlocking an additional EUR 880 billion (USD 1.02 trillion) in value creation. AZuR interprets these findings as validation that recycling, reuse and extended product life cycles directly strengthen climate protection, supply security and industrial competitiveness.

A practical model of this transition already exists in the tyre recycling sector, where Germany generates around 50 million used tyres each year. Through professional repair, retreading and regrooving, many of these tyres could remain in use significantly longer before being mechanically or chemically recycled. AZuR actively champions keeping tyres and their raw materials in circulation across Europe, with the clear goals of avoiding waste, lowering CO₂ emissions, conserving natural resources and securing secondary raw materials for industry.

The effectiveness of extending tyre lifespan is illustrated by commercial vehicle retreading, which can increase mileage by up to 25 percent. According to an AZuR and DBU study conducted by the Fraunhofer Institute UMSICHT, retreading saves over 60 percent of CO₂ emissions, roughly two-thirds of raw materials and about 50 percent of the energy compared to new tyre production. Tyres no longer suitable for retreading are then mechanically processed into rubber granulate or chemically recycled via pyrolysis and devulcanisation, yielding valuable secondary materials for construction and new tyre products.

With more than 80 partners across the entire value chain, AZuR networks industry, small and medium-sized enterprises, science and recycling technology to develop concrete circular solutions. The BCG and BDI study thus confirms that the circular economy is not merely an environmental policy issue but a crucial growth driver for Germany’s industrial future, a role that AZuR believes the tire industry is uniquely positioned to lead.

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DUNLOP has entered the Italian Rally Championship this season with former Formula 1 driver Heikki Kovalainen at the wheel. Backed by parent company Sumitomo Rubber Industries, Kovalainen competes alongside his longstanding co-driver Patric Öhman for Gino Scuderia in a Citroën C3 Rally2 fitted with DUNLOP DIREZZA 201R and 301R racing tyres.

DUNLOP’s involvement in the championship forms a key part of its global motorsport strategy, offering ideal conditions for tyre development under real-world competitive pressure. The variety of asphalt surfaces encountered provides valuable data on performance, durability and vehicle dynamics, helping transfer insights into future road tyre advancements. Kovalainen, drawing on extensive experience from Formula 1 and international rallying, has been closely involved in high-performance tyre development and will use his technical feedback to support DUNLOP’s rally tyre evolution.

As Italy’s premier rally series and one of Europe’s most demanding asphalt championships, the CIAR features seven closed-road rounds known for high speeds, technically challenging stages and extreme demands on drivers, cars and tyres. The series regularly attracts competitors from the World Rally Championship and European Rally Championship, reinforcing its reputation as a tough and respected battleground.

With two rounds completed, the season began in Tuscany in March with a 12th-place finish. A mechanical issue ended their challenge in Sicily on 14–16 May, but the duo returns to contest the championship on 4–6 June in Verona, followed by events in Rome, Alba and Cassino before the finale in Sanremo. The programme strengthens DUNLOP’s European motorsport presence and boosts brand visibility, underscoring its ambition to combine technological progress with top-level sporting performance.

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Triangle Tyre released its 2025 Sustainability Report on 29 April 2026, marking the company’s second full public accounting of its environmental, social and governance performance. The document outlines progress across all three ESG pillars since the previous disclosure.

Over the past year, the Chinese tyre manufacturer achieved several international firsts following its stock market listing. Triangle Tyre earned the EcoVadis Gold Medal, becoming the first domestic tyre company to receive that recognition, and also joined the United Nations Global Compact along with the China Environmental Protection Foundation. These moves signalled deeper global engagement on ESG issues.

The company’s sustainability leadership gained further validation through multiple external honours. Triangle Tyre appeared in the 2025 China Corporate ESG Blue Book Case Studies and the 2025 China Corporate ESG 100 Index. The China Listed Companies Association additionally named it a best practice case for corporate sustainable development, underscoring its rising influence at home and abroad.

In line with national carbon peaking and neutrality goals, Triangle Tyre pushed forward with green manufacturing by adopting energy efficient technologies and clean production processes. Its 2025 energy performance earned a place on a national list of leading enterprises in key industry energy efficiency, published by three central ministries. The company achieved a two percent year on year reduction in comprehensive energy use while building a low carbon energy management system.

Sustainability efforts extend across the product lifecycle, including tyres for the new energy vehicle market that combine ultra-low rolling resistance with high load capacity to extend driving range. The company is also pursuing a circular economy target of recycling and reusing 100 percent of end-of-life tyres by 2050. Recognised as a 2025 Shandong Social Responsibility Enterprise and a longtime best employer, Triangle Tyre maintains a people centred workplace while supporting rural revitalisation, education and disaster relief.

The company further integrates ESG standards into its supply chain with a zero-deforestation commitment and sustainability criteria for supplier assessments. As China enters the first year of its 15th five-year plan, Triangle Tyre continues to rely on technological innovation to become a globally leading tyre manufacturer, aiming to deliver greener and safer mobility solutions worldwide.

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CarbonX has extended its strategic partnership with European LFP battery manufacturer ElevenEs into 2026. The new phase transitions from initial material validation to advanced industrial-scale testing, aiming to strengthen the local supply chain for LFP batteries across Europe.

As the only LFP Edge cell producer in Europe, ElevenEs supports the regional ecosystem by offering its EdgeLabs R&D infrastructure. This platform integrates CarbonX’s carbon-based anode material into full-scale prismatic LFP blade-type cells, where rigorous benchmarking against global standards validates performance, lifespan and safety.

By providing specialised services, ElevenEs acts as an industrial catalyst for CarbonX, helping the Dutch material innovator move from laboratory to market-ready applications. The cooperation is designed to result in a conditional offtake arrangement upon the successful achievement of technical milestones.

Nemanja Mikać, CEO, ElevenEs, said, “Our continued partnership with CarbonX demonstrates how ElevenEs acts as an industrial engine for the European battery ecosystem. We don’t just validate materials; we provide the manufacturing excellence and R&D infrastructure necessary to scale promising European technologies. ElevenEs experts team actively supports suppliers to build a resilient, energy-independent supply chain for the future.”

Rutger van Raalten, CEO, CarbonX, said, “Signing this agreement with ElevenEs marks a significant step forward for CarbonX and reinforces our shared commitment to building a resilient, sustainable battery materials ecosystem. Beyond strengthening our supply chain, this partnership contributes directly to Europe’s strategic ambition for energy independence, accelerating the transition to locally sourced, low carbon critical materials.”

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