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 took part in the SHACMAN Group Worldwide Partnership Conference in Xi'an on 15–16 October, where dealers, key accounts and industry partners from across the globe gathered. The company attended as a core strategic partner of SHACMAN and acted as exclusive tyre sponsor of the vehicle stunt show, joining domestic and international customers to examine fresh opportunities in the global commercial vehicle sector and help shape a new model of collaborative industry growth.

Cooperation between the two firms has deepened since 2024, centring on original equipment fitment for flagship high-end models including the Delong X5000 and X6000, with products offered domestically and overseas. Dependable product quality and supply chain assurance have enabled Prinx Chengshan to grow into a core tyre supplier to SHACMAN, consistently furnishing tyre solutions for its flagship ranges.

A dedicated stunt driving segment formed part of the conference, with Prinx Chengshan as sole tyre exhibitor backing the performance vehicles. Cars fitted with Chengshan XSTANCE PRO S10 and CDR621 tyres carried out sustained drifts, high-speed turns and other demanding manoeuvres, remaining stable even under extreme conditions such as tyre burnouts and showing strong wear resistance.

Li Wenli, a three-time national truck racing annual finals champion known as China's top heavy truck driver, rated the tyres highly for grip, durability and handling stability. Live demonstration in place of specification presentations made technical strengths tangible, letting partners observe stability under extreme friction and high-torque loads.

The conference allowed the company to strengthen mutual trust and communication with SHACMAN and to showcase its commercial vehicle tyre capabilities; at its 50th anniversary milestone, Prinx Chengshan reiterated its commitment to keep improving its global service network, advance alongside SHACMAN on a new globalisation journey and help build an industrial ecosystem defined by mutual benefit and collaborative development.

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Michelin has opened a 1,000 sq ft tyre and service store in Jammu in partnership with Maha Shakti Auto, expanding its retail presence in the northern Indian city.

The Michelin Tyres & Services (MTS) outlet is located in Main Bazar, Gumat, in Jammu’s commercial district. It will serve customers in the city and surrounding region, offering tyres for passenger cars, two-wheelers and commercial vehicles.

The store stocks Michelin’s Primacy, Pilot Sport, Latitude Sport and LTX Trail tyre ranges. Its facilities include wheel alignment and balancing systems, automotive accessories, and mechanical repair and maintenance services.

The outlet was inaugurated by Benjamin Coesnon, Marketing Director for India at Michelin, alongside the Maha Shakti Auto team.

Shantanu Deshpande, Managing Director of Michelin India, said “Jammu is an important market in Michelin's growth in North India. Its role as a regional trade and transit hub is creating steady demand for safe, reliable and high-performance mobility solutions. Our new Michelin Tyres & Services store brings Michelin's globally benchmarked products and services closer to customers in the region. Building on our recently launched Made-in-India Primacy 5, we will keep delivering mobility solutions tailored to the evolving needs of Indian consumers."

The company said the store was designed to address driving conditions in the region, where steep gradients, sharp curves and changing weather make tyre grip, braking stability and durability important considerations.

Maha Shakti Auto has 30 years of experience in Jammu’s automotive aftermarket, according to Michelin. The partnership combines the local business’s technical expertise and market knowledge with Michelin’s tyre technology and product range.

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The Yokohama Rubber Co., Ltd. has announced that the No. 77 BMW M4 GT3 EVO, fielded by Schubert Motorsport and fitted with the company's ADVAN global flagship tyres, secured the NLS Speed Trophy series championship. The award goes to the team accumulating the most points across all classes throughout Germany's Nürburgring Langstrecken-Serie (NLS). As the series champion in the NLS premier SP9 Pro class, the No. 77 also claimed a KW Team Trophy, presented to the car and team with the highest points total in each class.

This season marked Yokohama Rubber's role as an official partner of BMW M Motorsport in the NLS, with the No. 77 BMW M4 GT3 EVO carrying ADVAN colouring. Across the 10-round campaign, the ADVAN-shod No. 77 produced consistently strong results, earning two overall victories and two second-place finishes. The ADVAN A005 for dry conditions and ADVAN A006 for wet conditions supplied the grip and durability needed to contend in fiercely competitive races across varying weather. ADVAN-equipped cars had previously taken the NLS Speed Trophy in 2020 and 2023.

Beyond the NLS, Yokohama Rubber partnered with BMW M Motorsport at May's ADAC RAVENOL 24h Nürburgring. The No. 77 ADVAN-coloured entry placed 8th overall and 7th in the SP9 class, while BMW M Motorsport's No. 81 BMW M3 Touring 24H, also on ADVAN tyres, took 4th overall and 1st in the SP-X class.

Under its three-year (2024–2026) medium-term management plan, Yokohama Transformation 2026 (YX2026), the company's consumer tyre strategy seeks to maximise sales ratios of high-value-added tyres by expanding the ADVAN and GEOLANDAR brands, winter tyres and 18-inch and larger products. Yokohama Rubber views motorsport participation as vital to strengthening ADVAN and GEOLANDAR, and continues to compete in a wide range of events worldwide, from top-category to grassroots racing.

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Prinx Chengshan presented its Chengshan brand at the 140th China Import and Export Fair, which opened in Guangzhou on 15 October. The Canton Fair, known as China's leading trade event, has a history of nearly seven decades and functions as an indicator of the country's foreign trade while offering Chinese brands a platform to demonstrate innovation and meet international buyers.

At the fair, the company highlighted products including the ET16 wide-body dump truck tyre, whose wide and deep transverse tread grooves provide strong traction for smooth starts on soft, uneven mining terrain and help lower risks such as wheel slip and vehicles becoming stuck. The ELD12 loader tyre was also featured for its wear resistance and load-bearing capacity across demanding conditions, with resistance to excessive deformation under heavy loads supporting stable and safe equipment operation.

The participation coincides with Chengshan Group's 50th anniversary and Prinx Chengshan's accelerating global expansion. Founded in Rongcheng, Shandong Province, in 1976, the company now operates three production bases, two R&D centres, three sales centres and four technical centres worldwide. On 9 October, its Malaysia plant produced its first tyre less than 11 months after construction began, marking progress in overseas production and supply chain resilience.

Prinx Chengshan has also increased investment in the off-the-road tyre segment, operating a green and smart OTR tyre factory in Shandong and achieving mass production of giant tyres in sizes including 27.00R49, 30.00R51 and 33.00R51, while rolling out its first 57-inch giant tyre, size 46/90R57. Its OTR products serve mining, construction, ports, airports, agriculture and industrial operations, offering system solutions for global agricultural mechanisation, engineering projects and resource development.

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