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.

Pirelli has chosen the softest trio in its range for the Mexico City Grand Prix, with the C3 as Hard, the C4 as Medium and the C5 as Soft. This departs from last year, when a compound step using the C2 as Hard proved less appealing than the softer alternatives. The second round of the Americas triple-header takes place at the circuit named after brothers Pedro and Ricardo Rodríguez, unique on the calendar due to its altitude of over 2,000 metres.

A large portion of the circuit has been resurfaced, covering Turn 16 to Turn 1 and Turn 7 to Turn 16, leaving only the first sector largely unchanged. New asphalt normally brings higher grip and lower roughness, though its actual characteristics will need assessment during the opening stages. The track is often dirty early on, with grip improving lap after lap, and that evolution could be more pronounced this year.

The Autódromo Hermanos Rodríguez has traditionally been one of the least demanding circuits on tyres, with low-speed corners and limited lateral loads keeping wear under control. The thin air reduces aerodynamic load, increasing tyre slip and making graining a factor to watch, possibly more so with the smoother asphalt. The circuit's low severity could favour a one-stop race, though tyre management to extend stints will remain important, particularly for the rear axle.

Strategy may depend more on driver confidence in a compound than on genuine tyre life limitation, with some teams favouring softer compounds for grip and others the Hard for consistency. The Soft could play a central role, having shown strong characteristics on low-severity circuits. Braking performance also warrants monitoring, as the altitude reduces aerodynamic efficiency and the long main straight into Turn 1 could increase lock-up risk. Last year's grid was split between one-stop and two-stop strategies. This will be the sixth Grand Prix under the Mexico City Grand Prix name, with Max Verstappen the most successful driver at the venue with five victories, matching Red Bull. The Pirelli Podium Cap celebrates Día de los Muertos, which falls on race Sunday.

Mitas marked its entry into Chinese agriculture with an official brand ceremony held on 27 October at the National Exhibition Center in Tianjin, during CIAME 2026, the China International Agricultural Machinery Exhibition. Customers, partners and industry figures attended the event, which introduced the international tyre maker and its agricultural portfolio to the local market.

Bringing close to 100 years of tyre manufacturing experience and enduring ties with farmers and equipment builders around the world, the company presents Chinese customers with a commercially available international option built on proven agricultural knowledge, technology and dependability. The dedicated exhibition booth featured the HC 2000 and SFT CHO. The former, a VF tractor tyre, delivers high load capacity at low inflation pressure alongside efficient traction and diminished soil compaction, achieved through a large contact patch and even load distribution. The latter, engineered for demanding cyclic-load duties, pairs high load capacity and low inflation pressure with a broad footprint for gentle ground handling. Both models demonstrated the brand's dedication to proven engineering and high-value performance for contemporary agriculture.

Going forward, the company plans to strengthen its Chinese footprint by collaborating closely with equipment manufacturers, distributors and farmers, deepening understanding of local applications and addressing the evolving requirements of Chinese agriculture.

Roberta D’Agnano, Global Marketing Director Mitas at Yokohama TWS, said, “Entering the Chinese market means bringing the strength of an established international brand to a new customer base. Mitas combines nearly a century of agricultural expertise with proven tyre technology and a clear focus on dependable performance. Our ambition is to establish Mitas as a reliable partner for Chinese farmers, distributors and equipment manufacturers, offering solutions that help them get the most from their machinery.”

The U.S. Tire Manufacturers Association (USTMA) has published its 2025 End-of-Life Tire Market Report, continuing a biennial series begun in the early 1990s. With over 30 years of figures on tyre generation, destination markets and stockpiles, the study stands as the nation's most thorough accounting of what happens to tyres after they leave the road.

Of the 273 million tyres retired nationwide in 2025, some 79 percent were absorbed by end-use markets. Only lead-acid batteries surpass tyres as a recycled and reclaimed material; paper, aluminium, glass and PET plastic all trail behind. The result is that valuable rubber stays in productive circulation rather than accumulating in landfills.

Abandoned and illegal stockpiles shrank to roughly 42.1 million tyres, compared with about 48 million two years earlier – a 12 percent drop in that span and a 96 percent fall from the billion-tyre high of 1990. Colorado's cleanup effort accounted for much of the gain, eliminating over 12 million tyres, while New Jersey and Pennsylvania recorded large reductions. North Carolina, Tennessee and Delaware cleared their stockpiles entirely, and land disposal declined nearly 11 percent to 779 thousand tonnes.

Tyre-derived fuel stayed the biggest outlet, taking about 1,317 thousand tonnes, with ground rubber just behind at roughly 1,201 thousand tonnes. Cement kilns consumed about 5 percent more, reaching 821 thousand tonnes – 62 percent of all tyre-derived fuel – as carbon-reduction mandates and the fuel's biogenic nature enhance its appeal. Reclamation applications expanded by roughly a tenth.

Most declines arose from forces outside the industry's influence. Pulp and paper mill shutdowns halved nothing less than 40 percent of that outlet, while revised Michigan energy rules trimmed utility boiler demand by about 22 percent. Synthetic turf continues yielding ground to cork, coconut husk and olive pit infill; moulded and extruded goods eased from a 2021 high; and energy price swings have shifted tyre-derived fuel's competitiveness. Exports, however, climbed 270 percent since 2023 – from 253 thousand tonnes to 936 thousand tonnes – making them the third-largest outlet, driven by India's rapid growth and sustained fuel shipments to Japan and South Korea. USTMA urges exporters to confirm that receiving markets are environmentally sound and economically viable.

Near-term investments include Tire Recycling Foundation-backed environmental product declarations, wider chip seal use, advances in dry-process rubber-modified asphalt and pavement funding. Kentucky devoted over USD 1.16 million in 2025 to nine county rubber-asphalt projects, and California opened USD 6.57 million in grants for fiscal 2025–26. Pyrolysis is now quantifiable as it reaches commercial scale, and the Tire Recycling Foundation is growing into a platform for education, research and demonstration. State-level stockpile figures accompany the report on the ELT Report page of the association’s website.

Anne Forristall Luke, president and CEO, USTMA, said, “This report gives a picture of a market in transition. Stockpile cleanup continues, and 79 percent of end-of-life tyres reached end-use markets. At the same time, several domestic markets contracted, and the rise in exports shows strong demand for this material outside the US Together, those trends tell us our markets still depend on a handful of large industrial outlets, and that market development has to be the priority. The data points to where the work is needed, and much of that work is already underway.”

Amelia Chucholowski, Associate Director, Sustainability and Recycling Policy, USTMA, said, “International demand further demonstrates that this material has real value, but our priority is domestic circular end-use markets, because a tire processed here supports a US recycler, US jobs and US infrastructure. That includes ensuring that domestic processors have adequate feedstock. We’re watching it closely and working with our global partners both to understand what’s driving this trend and to report it transparently.

“The work that actually grows these markets is underway right now, and almost none of it shows up in a 2025 market report. Read this report as a snapshot of 2025. What we’re building now will be measured against in the future. State programmes have built one of the country’s great recycling success stories. 96 percent of the tyre stockpiles that existed in 1990 are gone, and the lesson is clear: when states fund their programmes, enforce the rules and invest in markets, results follow. The next chapter is about markets. The more states invest in uses like rubber-modified asphalt, the more tires become roads, products and energy here at home.”

PRINX CHENGSHAN showcased a lineup of agricultural tyres under its Chengshan brand at the 2026 China International Agricultural Machinery Exhibition (CIAME 2026) in Tianjin on 26 October. The display featured tyre solutions tailored to modern agricultural needs, with emphasis on large-scale field cultivation and fall harvesting applications.

Rising performance demands across smart, high-end and environmentally sustainable farming have prompted the company to steadily expand its research and development investment in agricultural tyre applications. PRINX CHENGSHAN has built a comprehensive portfolio for large agricultural machinery, including tractors and combine harvesters, delivering integrated solutions for varied operating conditions along with service support spanning the entire product life cycle.

The TX600 and TX700 radial tyres, intended mainly for tractors, each offer distinct advantages. The TX600 pairs large tread blocks with a proprietary cut- and puncture-resistant rubber compound, ensuring stable driving, dependable handling and puncture resistance during high-speed transfers between work areas. The TX700 employs a high-strength carcass and belt construction to deliver strong load capacity and traction, even in muddy, difficult fields.

For combine harvesters, the TX2000 raises load capacity by 20 percent through high-flexion characteristics, while its low inflation pressure and larger contact patch lessen soil compaction, reconciling efficient operations with farmland protection. The TB500 bias-ply tyre, a notable addition to the tractor range, features a deep tread and large, robust blocks for excellent traction, wear resistance and puncture resistance, sustaining stable, slip-resistant performance in mud and gravel.

Looking ahead, PRINX CHENGSHAN plans to continue advancing agricultural tyre innovation, targeting the evolving requirements of modern equipment and practical field challenges. The company aims to collaborate closely with partners throughout the agricultural machinery supply chain to enhance the quality and efficiency of modern farming and support a stronger agricultural sector and greater food security in China.