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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Prinx Chengshan hosted its Brand Open Day on 21 May at the Jiangling Motors Corporation (JMC) Product R&D Institute, showcasing cutting-edge achievements and technical strengths. The event was designed to build deeper mutual trust and align industrial development strategies between the tyre manufacturer and the automaker.

The partnership between Prinx Chengshan and JMC began in 1992, and over 34 years, their collaboration has continuously deepened. They have expanded beyond traditional strongholds like pickup trucks, light trucks and light buses into passenger vehicle supporting businesses, achieving integration in supply chain stability and technological co-innovation. Executive President Jiang Xizhou addressed industry trends such as electrification and connectivity, positioning Prinx Chengshan as a future-oriented, technology-driven enterprise. R&D Center Director Li Chongbing detailed the company’s digital R&D system and collaborative innovation ecosystem, while Marketing Center Director Wang Hongdian introduced the brand portfolio and strategy for the global flagship brand, PRINX.

During technical exchange sessions, Prinx Chengshan leveraged its fundamental research capabilities to discuss tyre NVH technology, virtual tyre sampling, EV tyre formulations and smart tyre solutions with the JMC R&D team, reinforcing consensus on core technologies. At a separate Technical Showcase Area, the company set up experience zones for Silenteck silent technology and low-temperature low-rolling-resistance technology, turning abstract principles into immersive demonstrations. Other innovations on display included X-CHIP smart tyres, colourful tyre technology, Vanta Black and Healteck self-healing technology.

The open day served as both a comprehensive brand showcase and a major opportunity to deepen the longstanding cooperation. Prinx Chengshan will now accelerate its transformation from a tyre supplier into a technical partner for automakers, working closely with JMC on R&D innovation, vehicle matching and technical upgrades to jointly drive sustainable development in the transportation industry.

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Dunlop Tyre Europe GmbH has secured a fresh three-year alliance with Fanatec, a premier sim racing hardware manufacturer and an official Formula 1 partner under the Corsair Group. Fanatec’s high-end equipment is widely used by both passionate sim racing amateurs and professional esports athletes.

Dunlop has been actively involved in digital motorsport since September 2025 through an official role with Gran Turismo on PlayStation, developed by Polyphony Digital and Sony Interactive Entertainment. That simulation platform allows Dunlop to express its performance heritage virtually. The new Fanatec deal logically extends this foundation, combining Gran Turismo’s authentic racing scenarios with Fanatec’s premium gear to deliver a lifelike driving experience.

A primary focus of the partnership is improving audience engagement with motorsport. Fanatec’s racing setups will appear at live trade shows and events, starting with TIRE COLOGNE 2026 from 9 to 11 June, giving attendees a chance to enter a virtual cockpit and feel racing firsthand.

This cooperation seeks to bridge different enthusiast groups and strengthen ties between the motorsport and sim racing communities. By merging digital authenticity with high-grade hardware, Dunlop aims to advance motorsport both technologically and emotionally, ensuring it stays relevant for contemporary audiences.

Dennis Wilstermann, Marketing Manager, DUNLOP Tyre Europe GmbH, said, “As an official partner of Gran Turismo, it was clear to us that collaborating with Fanatec is the next logical step. Together, we are creating a platform where motorsport can be experienced at every level – digital, virtual and real.”

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JK Tyre & Industries has approved a phased capacity expansion plan involving an investment of INR 49.8 bllion to strengthen its presence in the Truck and Bus Radial (TBR) and Passenger Car Radial (PCR) tyre segments.

The company said its board of directors, at a meeting held on May 26, approved the expansion of TBR production at its Chennai Tyre Plant (CTP) and Vikrant Tyre Plant (VTP), along with PCR capacity expansion at the Chennai facility.

JK Tyre currently has an installed TBR and PCR capacity of 21 million tyres per annum, including capacities under implementation, with utilisation levels running at over 90 percent. The proposed expansion will increase overall capacity by 24 percent and is scheduled to be completed by FY30.

The investment will be undertaken in phases and financed through a combination of internal accruals and debt, the company said in its regulatory filing.

According to JK Tyre, the expansion is driven by robust demand across tyre categories in the Indian market and the need to maintain and strengthen its market presence.

The announcement comes alongside the company’s strong FY26 performance, with JK Tyre reporting record revenues and profitability amid rising domestic demand and higher sales volumes.

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Continental has introduced an addition to its retread product family with the launch of the ContiTread HDR 5, a regional retread designed to support fleet operations through enhanced durability and dependable performance. The new retread focuses on delivering confident handling, reliable traction and an extended service life for vehicles operating on regional routes.

The ContiTread HDR 5 employs a five‑rib tread pattern intended to provide predictable control, stability and even wear, particularly on routes involving frequent stops, sharp turns and mixed road surfaces. Its open shoulder design improves grip across various weather and road conditions, ensuring real‑world reliability while preserving both durability and overall mileage.

Developed to balance toughness with performance, the retread helps fleets maximise value from each retread cycle. Available widths include 210, 220, 230 and 240, all featuring a tread depth of 26/32 inch, offering flexible fitment for a range of regional truck applications.

Shaun Uys, VP of Sales and Marketing, Truck Tire RE USA, said, “Regional fleets need tyres that perform consistently across a wide range of conditions. The ContiTread HDR 5 was engineered to provide predictable handling, dependable traction and the durability fleets rely on to keep vehicles moving and costs under control.”

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