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.

Smithers, a renowned provider of testing, consulting, information and compliance services, has announced that its proving ground at Treadwell Research Park in Pearsall, Texas, has achieved ISO 17025 accreditation.

Operated on behalf of Discount Tyre, the facility’s accredited scope currently covers wet grip testing and tyre buffing, with plans to expand accreditation to include rolling resistance and pass-by-noise testing. The site boasts diverse paved and off-road test surfaces for comprehensive tyre performance validation. Additionally, it complies with UNECE Regulation No. 117 for Wet Grip and Pass-by Noise standards. This accreditation underscores Smithers' commitment to delivering high-quality testing services in the tyre industry.

Sean Connolly, Director of Test Track Operations at Smithers Winter Test Centre/Pearsall Test Track, said, “The tyre industry is currently focused on a variety of sustainability initiatives, such as reducing the rate of tread wear to extend the life of the tyre. Understanding tyre performance at varying levels of tread wear is critical for tyre manufacturers looking to get the most out of their designs.”

Jim Popio, PhD, Vice President, Smithers Materials Science and Engineering Division, North America, said, “We’re incredibly proud that our existing processes and procedures meet the rigorous requirements of ISO 17025 accreditation. Accurate data, on time, is central of the Smithers promise on a global scale, and we strive to go above and beyond our clients’ expectations with exceptional service as well.”

Michelin, a leading tyre technology company, has launched its first Michelin Experience Store in India, in partnership with Bharat Tyres. The facility spread across 25,000 sqft is located in Adgaon on the Mumbai-Agra highway, Nashik and is Michelin’s largest store in the country.

It is designed not only to provide a premium experience, but also showcases the company’s global legacy through the Michelin Wall. Customers will also be to experience the Heritage Wall that visualise the heritage of both Michelin and its local dealership partner.

The Michelin Experience Store also has a Display Zone that showcases Michelin’s innovations in electric mobility, materials science and environmental responsibility.

The dealership also includes service areas for cars and trucks, PPF coating, precision wheel alignment, advanced balancing services, innovative puncture repair solutions, professional car detailing and a wide array of car accessories. 

Shantanu Deshpande, Managing Director, Michelin India, said, “We are proud to unveil Michelin’s first Experience Centre in India. The sole purpose of this store is to go beyond traditional tyre retail and provide customers an immersive experience of the brand, of our dealer partners and of the technological prowess of our tyre solutions that are safe and sustainable. Nashik, a key hub with growing premium vehicle ownership, is the first of many such centres that will further strengthen our footprint in the western region while providing state-of-the-art experience and services to evolving customers.”

Radar Tyres, the flagship brand of Omni United, has appointed Sami Jauhojärvi, Olympic gold medallist and one of Finland’s most celebrated cross-country skiers, as its official brand ambassador.

Jauhojärvi's sporting excellence – built on resilience, performance and a profound connection with nature – mirrors Radar Tyres' commitment to delivering premium-quality tyres across all seasons and terrains at accessible prices. The brand's comprehensive range includes Summer, All Season, Winter and specialist Ice tyres, designed to meet diverse driving needs with reliable performance.

This collaboration represents a strategic alignment as Radar Tyres expands its European and UK presence. Jauhojärvi will serve as brand ambassador, featuring in marketing campaigns, digital initiatives and local events while sharing his expertise to support Radar Tyres' mission of making high-performance tyres available to all drivers.

G S Sareen, Founder and CEO of Omni United, said, “We’re excited to welcome Sami to the Radar family. Sami’s authenticity, credibility and strong connection with his audience make him an ideal partner for us. He embodies the spirit of perseverance and performance – the same qualities we build into every Radar tyre. As we continue to grow our brand across Europe, partnerships like this play a key role in building deeper connections with consumers. We’re excited to build on this momentum with more such collaborations in the near future.”

Jauhojärvi said, “I am thrilled to represent Radar Tyres, a brand that has a remarkable mission to make premium quality and performance accessible to all and also has deep-rooted values of giving back to society via various initiatives it has undertaken over the years such as supporting breast cancer research. I’m sincerely surprised about the performance and silence of my Radar Tyres and happy to deliver this feedback to all the people.”

Kenda Tires is celebrating Dan ‘The Flying Dutchman’ Vanden Heuvel's nomination to the Off-Road Motorsports Hall of Fame's Class of 2025, recognising his legendary 49-year career as both a champion racer and community leader.

Since entering his first race at age 15 in 1977 at Crandon International Raceway, Vanden Heuvel has become one of off-road racing's most respected figures. His aggressive driving style earned him 20+ Pro-Class wins, five Crandon World Championships and a PRO-2 title. As owner of Flying Dutchman Racing, he mentored numerous drivers including his son Mikey, who secured Kenda Tires' historic first PRO-2 victory.

Beyond competition, Vanden Heuvel's greatest impact comes from his tireless community work. He co-founded the Midwest Off-Road Racing Association, created the Short Course Kart Series for young racers and established the MORR Injured Driver Fund with his wife Nancy. His hands-on approach – from building tracks to mentoring drivers – has shaped generations of off-road enthusiasts.

Now as Kenda Tires' Product Display Manager, Vanden Heuvel continues supporting the sport, assisting drivers across multiple series while representing Kenda at events nationwide. His dedication embodies the brand's values of community and passion for motorsports.

The formal induction ceremony will be held on 2 November 2025 in Las Vegas. This honour celebrates not just Vanden Heuvel's remarkable racing achievements but his enduring legacy as an ambassador who has profoundly influenced off-road culture.

Brandon Stotsenburg, VP of Automotive Division, Kenda Tires USA, said, “Dan is more than a legend – he is a mentor, a servant-leader and the beating heart of the off-road community. He helped deliver Kenda’s first PRO championship and still shows up for others every single weekend. We are honoured to have him represent Kenda and even more proud to call him family.”