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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Sun Auto Tire & Service has expanded its Midwest footprint by acquiring the Main Street Tire & Auto location in Virden, Illinois. The transaction took effect immediately, and the newly acquired store will become part of the Sun Auto Network before rebranding under the Plaza Tire Service name.

Plaza Tire Service, a Midwest institution known as the ‘Quick Change Artist’ for more than six decades, will see its Illinois presence strengthened through this addition. The move broadens regional service coverage by integrating a trusted community shop with the extensive resources of a national network. Customers at the Virden location will continue to benefit from familiar local relationships while gaining access to enhanced operational support, advanced technology and customer-focused tools.

The Virden site offers a full range of automotive care, including major tyre brands backed by Sun Auto’s price match guarantee, alignments, brake service, oil changes, batteries, diagnostics and preventative maintenance. This acquisition marks the 16th Plaza Tire Service location in Illinois and supports Sun Auto’s ongoing expansion across key Midwest markets.

Rob Kingery, Regional Vice President, Operations, said "Virden represents an important opportunity to continue growing the Plaza Tire Service brand in Illinois. This location allows us to expand our reach while reinforcing the operational strength and consistency our network is known for."

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Pirelli Design and cycling apparel leader Santini Cycling have unveiled the Santini x Pirelli Sport Club 2026 collection, an evolution of their partnership launched in 2024. Inspired by the Pirelli Sport Club, founded in Milan in 1922 to encourage employee physical activity, the line celebrates Italian craftsmanship, performance and style.

The 2026 collection expands with fresh garments and graphic updates. Among the technical highlights is the new Fast jersey, engineered for maximum aerodynamics with ultralight fabrics and a second-skin fit. Returning Ruota and Tape models receive refined detailing, while the Pirelli SC jersey now features an all-over logo pattern in black and a new chocolate colourway.

All jerseys have a unisex fit and pair with Pirelli SC bib shorts with a C3 chamois for long-distance comfort. A heritage wool jersey features an embroidered Pirelli logo, mother-of-pearl buttons and a metal zipper. The new road skinsuit maximizes aerodynamic efficiency with breathable upper fabrics, woven striped sleeves and high-density lower section for muscular support.

Technical pieces include baselayers, a packable wind jacket and vest, plus socks, caps and bottles. A lifestyle line offers T-shirts, sweatshirts and casual garments with premium materials and distinctive graphics. The collection unites sporting passion, industrial heritage and design excellence, offering cyclists a cohesive wardrobe for both competition and daily life.

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TyreSafe has formalised a new media partnership with On Air Media Group, marking a strategic push to expand its road safety messaging through high-impact radio broadcasting. The arrangement cements a previously informal working relationship that had already produced several nationwide campaigns, including a 2025 effort conducted alongside the Diabetes Safety Organisation focused on diabetic drivers and the recent ‘Under Pressure’ initiative for Tyre Safety Month.

Under the deal, On Air Media Group’s production strength and wide broadcast reach will amplify TyreSafe’s technical knowledge, ensuring that critical warnings about tyre maintenance reach national and local radio listeners. The collaboration specifically targets private motorists, motorcycle riders and commercial fleets, promoting straightforward preventive measures.

Looking ahead, the partners plan to roll out interviews, live segments and campaign-linked features across UK. Future work will also support fleet operators, address seasonal safety concerns and launch regional projects tied to TyreSafe’s yearly schedule of awareness events.

Stuart Lovatt, TyreSafe Chair, said, “We’re delighted to formalise our partnership with On Air Media Group. Their creativity and professionalism have been instrumental in helping us deliver the tyre safety message to millions of listeners across the UK. Radio remains one of the most powerful ways to reach drivers where it matters most – while they’re on the move – and On Air’s ability to make safety messaging engaging and relatable has been invaluable. Together, we’re ensuring more people hear, understand and act on the importance of tyre safety.”

Will Luscombe, Creative Director, On Air Media Group, said, “We’re proud to partner with TyreSafe and support their vital work in promoting road safety. Our team is passionate about using the power of broadcast storytelling to drive meaningful change, and working with TyreSafe has shown how creative, well-targeted radio campaigns can make a real difference. This partnership is about amplifying awareness, inspiring behaviour change and ultimately helping to save lives on UK roads.”

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The Alliance for the Future of Tires (AZuR) has confirmed its participation as a cooperation partner for the tyre material flow for an interactive event on the Digital Product Passport (DPP), scheduled for 16 June 2026 at the Bottrop campus of Ruhr West University of Applied Sciences. With the European Union planning to introduce DPP from 2028, the initiative aims to establish greater transparency, resource conservation and functional material cycles. The upcoming gathering will focus on practical applications and future prospects for industry, trade, recycling and the circular economy.

The European Union has classified tyres as a priority product group under the new Ecodesign Regulation. The digital passport will provide accessible data on a tyre’s entire lifecycle, including material composition, carbon dioxide emissions, repair history, retreading suitability and recycling methods, potentially via QR codes or radio-frequency identification technology on the tyre itself.

Significant potential exists for the tyre recycling sector. Retreaders will be able to quickly assess casing history, mileage and past repairs to determine suitability for retreading. Recyclers will gain improved material transparency regarding ingredients, additives and recycled content, thereby facilitating both mechanical and chemical recycling. Thus, the passport can support longer tyre use and more efficient recovery of valuable raw materials.

AZuR views DPP as a key step towards advancing the tyre circular economy. Several manufacturers are already working on pilot projects, including Michelin’s coordination of a scalable system through the CIRPASS-2 project, standardisation efforts by Bridgestone and Michelin via the Global Data Service Organisation and AZuR partners’ work on radio-frequency identification and digital traceability. The upcoming university event offers companies, researchers and municipalities an early opportunity to address the passport’s requirements and develop practical solutions.

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