Tyre Pressure Monitoring System (TPMS)

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  • June 24, 2020
Tyre Pressure Monitoring System (TPMS)

Tyres do not typically carry the weight of our vehicles but it is only the air inside them does. There are three basic elements which determine the load capacity of a tyre namely, the size of the air chamber formed between the tyre and wheel, the strength provided by the engineering construction of tyre to hold air pressure, and the amount of air pressure actually in the tyre.

Fig No 1

Most flat tyres or zero pressure air  are the result of slow leaks that go unnoticed and allow the tyre's air pressure to escape over time (Fig.1). Therefore, monitoring tyre air pressure in real-time is extremely important. Fortunately, in these days we practically have such devices inbuilt in tyre, called, Tyre Pressure Monitoring System or TPMS, Fig.2. Run Flat Tyres (RFT) are typically designed passenger car tyre or light truck tyres or SUVs to run even when they are flat  or when there is zero inflation pressure. It is more of a safety issue - it's design allows you to continue driving in deflated condition to a point were you can safely get the tyre changed or repaired. To all RFT, therefore, it is was required to fit in TPMS system (Fig.2) to indicate driver that the tyre is running with low pressure or tyre is failed and is under zero pressure now.

Fig No 2

Tyre pressure sensor (pressure transmitter) converts the physical quantity 'tyre pressure' into an industry-standard signal , that enables the driver if the tyre pressure is becoming low or the tyre has already failed during driving (Fig.2). Mandates for TPMS technology in new cars have been continued to proliferate in the 21st century in Russia, the EU, Japan, South Korea and many other Asian countries. As of November 2014, the above fitment rate stands had been to ~ 54% of passenger cars.

 

Tyre pressure has profound influence on vehicle safety and efficiency. Tyre-pressure monitoring (TPM) was first adopted by the European market as an optional feature for luxury passenger vehicles in the 1980s. The first passenger vehicle to adopt TPM was the Porsche 959 in 1986, using a hollow spoke wheel system. In 1996 Renault used the Michelin PAX system. In the United States, TPM was introduced by General Motors for the 1991 model year for the Corvette in conjunction with Goodyear run-flat tyres. The system uses sensors in the wheels and a driver display which can show tyre pressure at any wheel, plus warnings for both high and low pressure (Fig.2). It has been standard on Corvettes ever since.

The dynamic behavior of a pneumatic tyre is closely connected to its inflation pressure. Key factors like braking distance and lateral stability require the inflation pressures to be adjusted and kept as specified by the vehicle manufacturer. Extreme under-inflation can even lead to thermal and mechanical overload caused by overheating and subsequent, sudden destruction of the tyre itself. Additionally, fuel efficiency and tyre wear are severely affected by under-inflation. Tyres do not only leak air if punctured, they also leak air naturally (air permeability), and over a year, even a typical new, properly mounted tyre can lose from 3 to 9 psi, roughly 10% or even more of its initial pressure.

Fig No 3

Maintaining proper tyre inflation is essential to vehicle handling, overall tyre performance, and load carrying capability. A properly inflated tyre will reduce tread movement, reduce rolling resistance, and increase water dispersion. Reduced tread movement gives the tyre a longer tread life. Reduced rolling resistance, the force required to roll a loaded tyre, results in increased fuel efficiency. Increased water dispersion decreases the possibility of hydroplaning. Both over-inflation and under-inflation can cause premature tread wear and possible tyre failure. Over-inflation can result in decreased traction and the inability to absorb road impact. Overinflated tyres will show premature wear in the centre of the tread. On the other hand, under inflation will cause sluggish tyre response, decrease fuel economy, excessive heat buildup, and tyre overload. An under inflated  tyre will show premature wear on both outside shoulders (Fig.3).

 

The European Union reports that an average under-inflation of ~ 6psi ,  produces an increase of fuel consumption of 2% and a decrease of tyre life of 25%. The European Union concludes that tyre under-inflation today is responsible for over 20 million liters of unnecessarily-burned fuel, dumping over 2 million tones of CO2 into the atmosphere, and for 200 million tyres being prematurely wasted worldwide. In 2018, a field study on TPMS shows that TPMS fitment reliably prevents severe and dangerous under-inflation and hence yields the desired effects for traffic safety, fuel consumption and emissions. The above study also showed that there is no difference in effectiveness between dTPMS and iTPMS and that the TPMS reset function does not present a safety risk.

The Tyre Pressure Monitoring System (TMPS) is an electronic system in the vehicle that monitors tyre air pressure and alerts the driver when it falls dangerously low. This system involves a pressure sensor (Fig.4) fitted in tyre air filling valve. However, a given TPMS system can only work with compatible sensors in the tyres.  

 

Fig No 4

TPMS notifies on vehicle dash board when vehicle’s tyre pressure is low or is going flat and this help to maintain proper tyre pressure (Fig.2). TPMS can directly or indirectly, increase vehicle safety on the road by improving your vehicle’s handling, decreasing tyre wear, reducing braking distance and bettering fuel economy. The significant advantages of TPMS are summarized as follows:

  • Fuel savings: For every 10% of under-inflation on each tyre on a vehicle, a 1% reduction in fuel economy will occur. In the United States alone, the Department of Transportation estimates that under inflated tyres waste 2 billion US gallons (7,600,000 m3) of fuel each year.
  • Extended tyre life: Under inflated tyres are the major cause of tyre failure and contribute to tyre disintegration, heat buildup, ply separation and sidewall/casing break downs. Further, a difference of 10 psi in pressure on a set of duals literally drags the lower pressured tyre 2.5 metres per kilometre (13 feet per mile). Moreover, running a tyre even briefly on inadequate pressure breaks down the casing and prevents the ability to retread. It is important to note that not all sudden tyre failures are caused by under-inflation. Structural damages caused, for example, by hitting sharp curbs or potholes, can also lead to sudden tyre failures, even a certain time after the damaging incident. These cannot be proactively detected by any TPMS.
  • Improved safety: Under-inflated tyres lead to tread separation and tyre failure, resulting in 40,000 accidents, 33,000 injuries and over 650 deaths per year only in USA. Further, tyres properly inflated add greater stability, handling and braking efficiencies and provide greater safety for the driver, the vehicle, the loads and others on the road.

 

  • Environmental efficiency: Under-inflated tyres, as estimated by the Department of Transportation, release over 26 billion kilograms (57.5 billion pounds) of unnecessary carbon-monoxide (CO) pollutants into the atmosphere each year in the United States alone.
Fig No 5

A TPMS reports real-time tyre-pressure information to the driver of the vehicle, either via a gauge, a pictogram display, or a simple low-pressure warning light (Fig.2).  

TPMS can be divided into two different types – direct (dTPMS) and indirect (iTPMS). TPMS are provided both at an OEM (factory) level as well as an aftermarket solution (replacement market). TPMS is increasing consumer demand for avoiding traffic accidents, poor fuel economy, and increased tyre wear due to under-inflated tyres through early recognition of a hazardous state of the tyres.

A sensor based TPMS has a pressure monitoring sensor fixed inside the wheel and tyre  assembly(Fig.5). This is usually clamped to the wheel and constantly monitors the internal pressure of the tyre . This information is relayed to a receiving unit on the vehicle body which is connected to a processing unit in the electronics system of the vehicle. This alerts the driver to a loss in tyre pressure.

 

Fig No 6

There are two different types of systems being used today: Direct TPMS and Indirect TPMS. Direct (dTPMS) uses a sensor mounted in the wheel to measure air pressure in each tyre. When air pressure drops 25% below the manufacturer’s recommended level, the sensor transmits that information to the computer system of car and triggers your dashboard indicator light (Fig.2).

 

Indirect (iTPMS) works with Antilock Braking System’s (ABS) wheel speed sensors. If a tyre’s pressure is low, it will roll at a different wheel speed than the other tyres. This information is detected by the computer system of car , which triggers the dashboard indicator light (Fig.2). The purpose of the TPMS is to alert you when tyre pressure is too low and could to create unsafe driving conditions. If the light is illuminated, it means your tyres could be underinflated, which can lead to undue tyre wear and possible tyre failure.

Direct TPMS

Direct TPMS (dTPMS), is a directly measuring hardware-based systems. They could be fitted in each wheel, most often on the inside of the valve (Fig.6), there is a battery-driven pressure sensor which transfers pressure information to a central control unit which reports it to the vehicle's instrument cluster or a corresponding monitor. Some units also measure and alert temperatures of the tyre as well.

These systems can identify under-inflation in any combination, be it one tyre or all, simultaneously. Although the systems vary in transmitting options, many TPMS products (both OEM and aftermarket) can display real time tyre pressures at each location monitored whether the vehicle is moving or parked. There are many different solutions, but all of them have to face the problems of exposure to hostile environments. The majority are powered by batteries which limit their useful life.  A direct TPMS sensor consists of the following main functions requiring only a few external components, that is mounted to the valve stem inside the tyre:

 

  • Pressure sensor
  • Analog-digital converter
  • Microcontroller
  • System controller
  • Oscillator
  • Radio frequency transmitter
  • Low frequency receiver
  • Voltage regulator (battery management)

 

InDirect TPMS

Fig No 7

Indirect TPMS (iTPMS)  uses to detect the differing speed of revolution of a wheel with a reduced circumference, caused by a reduction in tyre pressure . There may be  dashboard icons for low pressure warning icon  or system failure icon (Fig.2). This system uses the ABS  or the Antilock Braking System of the vehicle to monitor the rotation speed of the individual wheels. If a deflation of a tyre occurs the resulting increase in wheel speed triggers the TPMS and advises the driver accordingly (Fig.7).

Advantages of the ABS based system include the fact that the system uses technology and equipment that is already fitted to the vehicle. Also there are no sensors fitted inside the wheel/tyre assembly which makes the tyre fitting process easier than the sensor based systems.

Dr Samir Majumdar, Rubber Consultant (India & Asia pacific), has served in leading tyre companies like JK Tyre, Kyoto Japan Tire, among others. He was technical and R&D head (Asia Pacific) in ExxonMobil. He has authored several research papers and technical books. smajumdar501234@yahoo.co.in

India’s Tyre Recycling Industry Enters New Era With Gujarat’s Green Light To Continuous Pyrolysis

Tyre recycling

India’s tyre recycling sector, long plagued by fragmented operations and lax compliance, is undergoing a critical overhaul. With Gujarat’s recent approval for continuous pyrolysis plants, the industry is moving decisively towards cleaner, scalable and regulation-driven solutions. This shift signals more than a technological upgrade and it’s a rebuke of outdated batch systems and a call for formalisation, traceability and environmental accountability. As global demand for sustainable materials rises, India’s pivot positions it as a potential leader in circular economy practices. In conversation with TRRAI President Chetan Joshi, we explore how this development could redefine the future of tyre waste management at home and abroad.

India’s tyre recycling sector is on the cusp of a transformational shift with the Gujarat Pollution Control Board (GPCB) approving the establishment of continuous pyrolysis plants in the state. The move marks a significant departure from traditional batch-based tyre processing systems, promising to boost efficiency, environmental compliance and resource recovery at an industrial scale.

“This shift is nothing short of revolutionary,” said President of the Tyre and Rubber Recyclers Association of India (TRRAI) Chetan Joshi. “We’re moving from outdated, fragmented batch operations to streamlined, automated continuous pyrolysis systems. This is going to uplift the entire industry, from cleaner emissions to higher resource recovery, better traceability and serious investor interest. It sets a new national standard and will accelerate formalisation, industrial-scale operations and a far more sustainable approach across India.”

The approval has been met with optimism by recyclers and environmental advocates alike as it signifies a structural change in how end-of-life tyres will be handled in India, which is home to more than 1.8 million tonnes of tyre waste annually.

The Gujarat model mandates stringent adherence to environmental standards, particularly concerning air quality and emissions. Continuous pyrolysis plants approved under the new framework are required to incorporate top-tier pollution control mechanisms.

“We see compliance not as an obligation but as a core design principle. Our plants are being built with advanced air pollution control devices (APCDs), real-time emissions monitoring and automation that ensures consistent performance. We’re aligning with both GPCB and CPCB regulations through pro-active design, third-party audits and integrating global best practices. It’s not just about meeting today’s standards but staying ahead of tomorrow’s,” said Joshi.

The approach reflects a broader shift in the recycling sector, where regulatory compliance is no longer viewed as a hurdle but as a strategic advantage and market differentiator.

Industrial scale

Under the new directive, each continuous pyrolysis facility must operate at a minimum capacity of 60 tonnes per day (TPD). This scale reflects the government’s push to industrialise tyre recycling and eliminate inefficient, informal practices.

“Scaling to 60 TPD is a serious industrial commitment and it means heavy investment in automation, utilities, safety systems and logistics. But it’s also the only way forward. India generates over 1.8 million tonnes of end-of-life tyres annually. This scale allows us to handle the problem responsibly while creating traceable and economically viable recycling ecosystems,” Joshi said.

With India’s growing automotive base, the urgency to develop sustainable, high-capacity recycling infrastructure has never been higher.

One of the key advantages of continuous pyrolysis lies in its outputs that include valuable petrochemical byproducts like pyrolysis oil, sustainable fuels and recovered carbon black (rCB). These materials are increasingly in demand across a range of industries, from rubber manufacturing to renewable energy.

“These by-products are entering a new phase of global relevance. Recovered carbon black is being adopted in rubber, plastics and even pigments. Pyro oil, when upgraded, is a viable alternative fuel. We’re actively engaging with global buyers and certifiers to standardise and integrate these outputs into international supply chains. The world is ready for sustainable alternatives and it’s up to us to deliver with consistency and quality,” averred Joshi.

India’s entry into this global supply chain positions it not just as a recycler of waste but as a producer of sustainable industrial materials.

Circular economy

TRRAI views this milestone as more than an environmental success. It’s a step towards realising India’s vision of a circular economy, where tyre waste is fully reintegrated into the production cycle.

“We aim to be more than recyclers. We want to be circular economy enablers. That means building systems where tyre waste is traceable from collection to output, where value is recovered and re-injected into the economy. We’re developing collection infrastructure, digital traceability and offtake agreements with industries globally. This is not just about waste; it’s about resource optimisation and environmental stewardship,” Joshi explained.

Such a shift could significantly reduce the country’s carbon footprint while fostering job creation and industrial growth.

Despite the enthusiasm, industry leaders acknowledge that challenges remain, particularly in terms of adoption among legacy operators and infrastructure gaps.

“The biggest challenge is inertia as many operators are still working in the unorganised sector with outdated setups. Then there’s infrastructure as a hurdle as tyre collection networks are underdeveloped in many parts of India. To overcome this, we’re advocating policy changes, investing in reverse logistics and training the workforce. Regulatory clarity and enforcement will be key and we’re working closely with industry associations and government bodies to drive this,” said Joshi.

Stakeholders believe that education, investment and enforcement will be pivotal to ensuring widespread transition to continuous pyrolysis systems.

Global trends

Globally, countries like those in Europe and North America have already adopted advanced tyre recycling technologies. But Joshi believes India has a unique opportunity to leapfrog older systems and build world-class facilities from scratch.

“Europe and North America have a head start, especially in policy frameworks and end-use applications. But India’s opportunity lies in scale and adaptability. We can leapfrog legacy systems and build efficient, tech-driven plants from the ground up. If we get the ecosystem right – collection, compliance and capital – we can set new benchmarks, not just catch up. India could become a global hub for tyre recycling technology,” he said.

The industry’s fast pace of development combined with India’s manufacturing and engineering capabilities could make the country a case study in sustainable industrial transformation.

Innovations in emission reduction

In line with global best practices, TRRAI and its partners are integrating innovations to ensure safety and minimal environmental impact.

“We’re integrating closed-loop systems, AI-driven control logic and multi-stage gas cleaning technology. Real-time emissions data will be available both internally and to regulators. Safety protocols are built into every operational layer, from material feeding to shutdown procedures. We’ve also prioritised workforce training and regular third-party safety audits. The goal is to operate with zero compromise on health or the environment,” Joshi explained.

Such innovations are crucial not only to maintaining regulatory compliance but also to building public and investor confidence.

The entry of advanced technologies is expected to catalyse foreign investment and technical collaboration.

“Our approach is partnership-driven. We’re already working with European and Australian technology providers and are in discussions with institutional investors. We see India as a platform for co-creation, where global IP meets local scale and agility. Through industry associations like TRRAI, we’re building collaborative networks to ensure knowledge sharing, investment facilitation and joint innovation,” Joshi noted.

This strategy could help India become a global innovation hub for recycling technologies applicable across other emerging markets.

The vision

Looking to the long term, the industry’s goals extend far beyond domestic waste management. TRRAI envisions exporting its model to developing nations facing similar challenges.

“Our vision is bold but simple. It is to create a fully circular, scalable and replicable tyre recycling ecosystem. India should not only solve its own tyre waste crisis but become a global model for how emerging markets can tackle resource recovery. We see this model being exported to Southeast Asia, Africa and Latin America. With continuous pyrolysis, India can move from reactive recycling to proactive resource management on a global stage,” Joshi concluded.

As Gujarat lights the way with its approval of continuous pyrolysis plants, India’s tyre recycling sector is poised to become a beacon of innovation and sustainability – one that could shape the future of global recycling practices. n

Reclaim

For decades, China has stood as the world’s dominant supplier of raw materials across industries, making it a significant player in the global supply chain. However, Gujarat-based Lead Reclaimed Rubber, an Indian MSME, has achieved a remarkable feat by exporting reclaimed rubber crumb to Chinese manufacturers. The company capitalised on India’s abundant scrap tyre supply and favourable policies, tapping into China’s massive demand for reclaimed rubber. As Lead Reclaimed Rubber continues to expand its production capacity and export markets, the company also faces challenges such as labour shortages, supply delays and regulatory concerns. Despite these obstacles, it remains optimistic about its growth prospects.

China has been the largest supplier of raw material for every industry known to man since decades. While there are many companies in different markets trying to sell back to China, an Indian MSME has unachieved the feat of selling to the ‘seller’.

Gujarat-based end-of-life tyre (ELT) recycler Lead Reclaimed Rubber has been exporting its reclaimed rubber crumb to Chinese manufactures. Commenting on how the company achieved this feat, Chief Executive Officer Jayeshh Patel told Tyre Trends in an exclusive interview, “China is the largest importer of reclaimed rubber, sourcing the material not only from India but also from countries like Vietnam and Sri Lanka. This demand is driven by a vast domestic market for tyres and inner tubes, with numerous brands operating in the aftermarket segment as well as in OEM manufacturing. As a result, the growth potential is significant.”

“While China has its own reclaim rubber plants, it faces limitations due to inadequate scrap tyre availability. In contrast, India has an abundant supply of scrap tyres supported by both domestic generation and strong import volumes. Additionally, India’s favourable government policies and the availability of skilled labour further enhance its position as a competitive and reliable supplier of reclaimed rubber to China. Hence, our company capitalised on the situation and started exporting,” he added.

Lead Reclaim Rubber was established in 2012 and is an NSE-listed company. It operates both in domestic and export markets with plans to grow its current production capacity as the reclaimed rubber market unfolds its potential.

Moreover, Patel noted that the Extended Producer Responsibility (EPR) framework by the Indian Government is playing a crucial role for the recycling industry for reaching greater heights.

EPR IMPACT

According to Patel, EPR has emerged as a transformative force in the recycling industry. Given the industry’s dynamic nature and its drive to adopt advanced technologies, EPR presents a timely and impactful mechanism to support growth particularly for micro, small and medium enterprises (MSMEs).

“While the recycling sector is evolving, recyclers often operate on thin profit margins, which limits investment in new technologies and process upgrades. EPR has helped bridge this gap. Under the scheme, we are awarded green credits for every kilogramme of end-of-life tyres we recycle. These credits are a compliance requirement for tyre manufacturers, who purchase them from registered recyclers like us. For every 100 kilogrammes of tyre recycled, we receive approximately 130 green credits, each valued at INR 2.5, resulting in a direct financial incentive. This additional income strengthens our balance sheet and can be reinvested in research and development, capacity expansion and technology upgrades. In this way, EPR indirectly fosters innovation and scaling in the recycling ecosystem,” said Patel.

To maintain accountability and transparency, the Central Pollution Control Board (CPCB) has developed a digital portal where all stakeholders must report data.

“We record our incoming feedstock (purchase data) and outgoing materials (sales invoices) on the CPCB portal. This data forms the basis for calculating green credit eligibility. Our operations are routinely audited by both government agencies and the tyre industry. These audits verify that we meet all technical and environmental standards before credits are approved. The government has also established baseline electricity usage norms for tyre recycling. We are required to submit our electricity bills to demonstrate compliance. If our energy consumption does not meet the defined threshold, we are ineligible for green credits, preventing fraudulent claims,” he Patel.

He optimistically contented that EPR is rapidly becoming the backbone of the tyre recycling industry. For over a decade, recyclers have struggled with limited access to capital. EPR is now enabling financial stability, paving the way for recyclers to professionalise operations, scale sustainably and drive forward-looking initiatives. This policy is not just a support mechanism but a growth enabler.

AN OVERVIEW

The recycling company focuses on sustainable practices and high-quality output. “Our core operation involves sourcing EOL tyres and tubes from various states across India for recycling into value-added rubber products. Our recycling process begins with a proprietary feedstock checking system to ensure quality. The tyres are then sorted, cut and processed into crumb rubber powder. Currently, we produce crumb in 30–40 mesh sizes with plans to expand into finer 80 and 120 mesh grades in the near future,” explained Patel.

For the domestic industry, crumb rubber serves a wide range of applications. Finer meshes (80 and 120) are used in various rubber and dye industries, while 30–40 mesh is commonly used in bitumen modification for road construction, in line with the Central Government’s CRMB 30 guidelines.

Furthermore, the company employs a green devulcanisation system that utilises steam, oil and pressure to break down and re-bond the rubber polymers from EOL tyres. This method is 100 percent sustainable, producing zero discharge and zero wastage. Even the steam generated during the process is condensed and reused. “We are in the process of acquiring a Z-Certificate for our zero-waste operations,” divulged Patel.

Post-devulcanisation, the rubber material becomes soft and slightly sticky due to the restructured cross-linking. It then undergoes further processing in the reclaim section, which includes refiners, mixing mills and a cleaning stage.

During cleaning, all metallic and non-rubber impurities are extracted using strainers with 60-millimetre wire mesh. The purified compound is extruded into noodle form and sent to the refiners to produce the final reclaimed rubber product, typically in seed form.

“We tailor our reclaimed rubber to meet the specific requirements of our customers including thickness, size and performance properties. Each product is made to specification. The reclaimed rubber is used across various industries including tyre and tube manufacturing, conveyor belts, packaging and other rubber-based products. As industries increasingly shift from virgin to reclaimed rubber, we position ourselves as a reliable and environmentally responsible supplier,” noted Patel.

PRODUCTION AND SUPPLY

According to Patel, virgin rubber contains about 90–100 percent RSPL, while reclaimed rubber has around 50–52 percent. It’s more affordable than virgin rubber, but the use of 100 percent reclaimed rubber in tyre manufacturing is still a distant thought.

However, it’s widely used in rubber mats. Tyre manufacturers are gradually increasing reclaimed rubber usage, encouraged by government directives to reduce dependence on natural resources and imports. Since local virgin rubber production is insufficient, it’s being imported from countries like Vietnam.

Currently, large tyre manufacturers in India use only a small percentage of reclaimed rubber, around two to three parts per hundred

rubber (PHR). For cycle and three-wheeler tyres, it goes up to 20 PHR. Conveyor belts use up to 30 percent, and in non-critical applications with almost no performance impact, reclaimed rubber can be used up to 95 percent.

The company’s plant is located in Katlal, Kheda, near Ahmedabad, and it uses Indian machinery sourced from Punjab. “We started production at 250 metric tonnes per month. After Covid, we scaled up to 490 metric tonnes and recently reached 960 metric tonnes per month. Within the next year, we plan to expand further to 2,000 metric tonnes per month,” said Patel.

He added, “We run our plant with TBR tyres both nylon and radial. We’re centrally located in Ahmedabad and as Gujarat shares borders with Rajasthan, Madhya Pradesh, Maharashtra, and the southern states, it helps us with tyre sourcing. We collect tyres through a three-layer supply chain consisting puncture shops, rag pickers and aggregators. The aggregators sort the tyres as per our requirements.”

For nylon tyres, the company only uses the centre portion, specifically from 1020 tyres and discards the sidewalls. For radial tyres, it recycles the entire tyre. The recycling technology is the same for both, but the processing recipe differs. Radial tyres have cords in the centre, so the devulcanisation process is slightly modified to handle the added strength. Its research and development facility are located inside the plant.

Commenting on what sets the company apart from competitors, Patel explained, “Our focus on consistency and timely delivery sets us apart from competitors. We maintain a 95 percent consistency ratio. From raw material to the final product, everything is monitored and controlled by our control plant, which is also a key differentiator. We also have an in-house development department that not only ensures quality consistency but also works on improving the benefits for our customers. On top of that, we conduct awareness programmes to educate our customers on which materials are best suited for different use cases. That’s something others in the industry usually don’t do.”

MARKET SPREAD

Lead Reclaim Rubber serves both domestic and international markets. Among the industries it caters to, conveyor belts account for 30 percent of its business, tyres for 20 percent and the remainder comes from rubber products and packaging. Although the tyre and tube segments currently represent a smaller share of revenue, Patel anticipates significant growth in these areas. Over the next five years, it expects tyres and tubes to become its largest consumer segment followed by conveyor belts.

The company attributes this projected growth to the government’s strong emphasis on the circular economy and the rapid expansion of the automobile industry, both of which are likely to increase demand for reclaimed rubber.

The company exports to several countries including Sri Lanka, China, Bangladesh, Turkey and Philippines. China is currently the largest consumer in its export portfolio, followed by Sri Lanka. According to the Patel, export markets generally use more reclaimed rubber due to their larger production capacities.

The export market continues to show strong demand and the company currently has pending orders from China.

However, as European nations vie for restricted EOL tyre exports to India, the scenario for indigenous recyclers can be precarious. Commenting on the potential impact of such restriction, Patel highlighted, “India recycles a significant portion of the scrap tyres it generates. However, unregulated and illegal pyrolysis operations remain a critical concern. These units often operate without environmental compliance, posing risks to public health and the environment. Stronger government intervention and regulatory enforcement are urgently needed to eliminate such practices and ensure sustainable recycling.”

“India’s tyre recycling ecosystem is diverse and imbalanced. While there are numerous recyclers, the segment is dominated by pyrolysis players (approximately 70 percent), with reclaim rubber manufacturers constituting only around 30 percent. This heavy skew towards pyrolysis is problematic, especially since many of these players depend on imported scrap tyres for feedstock. If the import of scrap tyres into India is disrupted, it will create a significant supply shortage, driving up the price of ELTs. Currently, the price of scrap tyres ranges between INR 18–21 per kilogramme, but a halt in imports could potentially increase this to INR 40 per kilogramme, a nearly 50 percent spike, which would severely impact the entire recycling value chain,” cautioned Patel.

Besides this looming issue, Patel highlighted several pending challenges for the industry. One of the primary issues is a shortage of skilled labour. Interestingly, even as the industry moves towards greater automation, the demand for labour continues to rise.

Another challenge is supply delays caused by aggregators, who often fall behind on delivery timelines due to their own labour shortages. Additionally, maintaining quality consistency is difficult as scrap tyres vary in composition from batch to batch. As a result, the company must closely monitor and control its processes.

A significant concern affecting future growth is the regulatory environment. The company remains cautious about expanding production because of the current ban on scrap tyres.

Although the business is regulated, there’s an underlying fear that stricter government action could further limit the supply of scrap tyres. Such restrictions could leave newly built expansion units underutilised.

Patel believes that unless government policies become more supportive, major investments and expansions will remain risky.

Looking ahead, Lead Reclaim Rubber is planning both forward and backward integration. On the forward side, the company aims to start manufacturing rubber tiles made entirely from rubber granules, a by-product of its current process. It also plans to enter the cycle tyre industry.

As part of its backward integration strategy, the company intends to set up more tyre collection centres both internationally and within various Indian states to secure a more consistent supply chain.

Challenges That Hinder Progress

Euric

Despite two decades of reform, Europe’s tyre recycling ecosystem remains mired in regulatory inertia and market fragmentation. While the EU successfully curbed tyre landfilling in the early 2000s and achieved high collection rates, true circularity remains elusive. Over half of collected tyres are still incinerated rather than recycled into new products. The lack of mandatory recycled content targets, harmonised end-of-waste criteria and coherent eco-design regulations continue to stall progress. As environmental stakes rise and end-markets like artificial turf face bans, EuRIC’s latest manifesto lays bare the urgent need for systemic reform, spotlighting persistent policy voids, legal ambiguities and missed opportunities across the value chain.

Europe’s tyre recycling challenges have been building for over two decades. Back in 1999, the European Union banned tyre landfilling under Directive 1999/31/EC. This forced a major shift, and by 2003, landfilling tyres was officially prohibited. At that point, Europe still struggled to manage the sheer volume of end-of-life tyres (ELTs), often resorting to incineration or exporting them for disposal elsewhere.

Since then, collection rates improved dramatically, from around 25 percent in the mid-1990s to nearly 95 percent by 2010, but recycling quality remained substandard. Although most ELTs were collected, half were used for energy recovery, not material recycling. True circular solutions like reusing rubber in new tyres have lagged due to technological and regulatory hurdles

Complex EU regulations, limited mandates on recycled content and ecological concerns slow innovation. Over the past few years, initiatives like Life Green Vulcan, BlackCycle and policy push from the European Recycling Industries’ Confederation (EuRIC) show growing momentum, but real impact is yet to be seen.

EuRIC has been constantly advocating reforms that would change the course of the continent’s tyre recycling space with its recent manifesto delving into the immediate steps that ought to be undertaken to strengthen the tyre recycling industry.

EuRIC, through its Mechanical Tyres Recycling Branch (MTR), outlined a comprehensive vision for strengthening Europe’s tyre recycling sector. With over five million tonnes of tyres produced annually in the EU and around three million tonnes becoming ELTs, only about half are recycled – the rest are incinerated. EuRIC underscores the environmental advantages of mechanical tyre recycling and advocates for prioritising it over energy recovery to align with circular economy goals.

Speaking to Tyre Trends on the biggest obstacles to implementing mandatory recycled rubber content targets in new tyres and how industry collaboration can help overcome them, EuRIC’s Technical Advisor for tyres, Gabriel Gomez, mentioned, “Currently, the main regulatory challenge is the lack of a mandate from the authorities to define how and when the mandatory recycled content targets are to be implemented. We have received good feedback from the manufacturers in Europe regarding their willingness to include these targets. However, there is a need for a solidly defined regulatory framework that guarantees a level playing field in the tyre value chain and promotes innovation in this area.”

“The main risk of failing to implement harmonised end-of-waste criteria lies in the growing, practical need for a defined set of criteria to determine end-of-waste status. If the EU delays further in the creation of harmonised end-of-waste criteria, this will push member states to create their own national criteria, which could vary significantly and prove incompatible. This fragmentation would lead to market disruption, create confusion across the value chain and introduce legal uncertainty – all of which would ultimately weaken the European recycling industry and its competitiveness,” he added.

He noted that EuRIC strongly supports a complete ban on the export of tyres and tyre shreds for incineration or landfilling. These practices represent a misuse of valuable resources that should be reintegrated into the economy and clearly contradict the waste hierarchy in the European Waste Framework Directive.

“EuRIC, representing Europe’s tyre recyclers would welcome swift implementation of such a ban, especially since existing tools such as the Waste Shipment Regulation are already being used to prevent exports to operators and facilities that do not ensure environmentally sound treatment of these materials,” noted Gomez.

THE MANIFESTO

The recently published manifesto by EuRIC proposes five key policy actions to address systemic barriers and unlock the potential of tyre recycling. First, it calls for mandatory recycled content targets – 10 percent for new tyres and 20 percent for automotive parts – to stimulate demand and reduce reliance on virgin rubber. Public procurement and financial incentives like VAT reductions are also suggested to support this demand shift. Currently, artificial turf accounts for a major share of ELT-derived rubber, but impending bans on micro-plastics threaten this end-market, making policy support more critical.

Second, EuRIC demands a ban on the export of unprocessed and shredded waste tyres outside the EU. ELTs are often exported to regions with weak environmental controls, where they are landfilled or incinerated. Countries like India have become significant importers, raising environmental and regulatory concerns. To counter this, EuRIC stresses the need for strict enforcement of the EU’s Waste Shipment Regulation and advocates for EU-wide end-of-waste (EoW) criteria to facilitate trade within the EU and promote high-value recycling.

Thirdly, the manifesto emphasises the importance of eco-design in tyres, urging that tyres be made retreadable, recyclable and free from hazardous substances. Innovations like self-sealing and noise-reducing foams, while performance-enhancing, impede recycling and can even cause fires during shredding. EuRIC supports the Ecodesign for Sustainable Products Regulation (ESPR) and wants tyre manufacturers to bear the cost of non-recyclable designs.

Fourth, EuRIC promotes the Digital Product Passport (DPP) as a key enabler of recycling efficiency. Current data on tyres is insufficient; hence, they propose leveraging RFID technology to track chemical composition and recyclability through a centralised database. This transparency would help recyclers better handle materials and comply with chemical regulations.

Lastly, the manifesto addresses the need for a science-based chemicals policy that supports recycling rather than undermining it. The current trend towards hazard-based regulation with near-zero thresholds for certain chemicals risks sidelining recycled materials. EuRIC urges a shift towards risk-based assessments, transparent

testing methods and harmonised standards to ensure recycled materials remain viable in the EU’s green transition.

TOWARDS RECYCLABILITY

According to Gomez, mechanical tyre recycling is a recycling method for rubber that has stood the test of time. It remains the most common and best-established route for recycling tyres in Europe with the technology offering high-quality output. It also has the added value that it can serve as a reliable supplier for further processing technologies dealing with vulcanised rubber. Recycled rubber from ELTs offers significant potential for technologies that require a uniform and predictable input to maintain control over industrial processes.

Nonetheless, over three years after rubber from ELTs was prioritised, no regulation has materialised yet. Commenting on what lead to the stalling, Gomez noted, “The past year has brought major changes at EU level with the start of a new Commission mandate, which may explain the shift in priorities. However, at EuRIC we are working closely with manufactures and policymakers to keep the issue high on the agenda. We see harmonised EoW criteria as a key opportunity to align the interests of recyclers and manufacturers. Harmonised EoW criteria would bring significant benefits for the entire value chain, from boosting investment and legal certainty to increasing the uptake of recycled materials.”

Alluding to whether the current EU chemicals legislation, especially restrictions on substances like PAHs, appropriately balances environmental protection with the needs of a circular economy or does it unintentionally favour virgin materials, he stated, “It is not a matter of favouring virgin materials. The main issue is that the current legislation is not designed to consider that the materials in an article may have more than one life. Whenever the legislation targets the content of a substance in a recycled material, sometimes it fails to consider the real exposure to the substance based on the application and the nature of the material.”

Digital Product Passport is another vital tool for the entire industry’s circularity goals. While it is still in its early stages, EuRIC notes that there are projects that target the implementation of the DPP in tyres and it is optimistic about the possibilities this tool offers to the industry. Amongst the information that the DPP should make available for recyclers is the contents of substances of concern and hazardous substances as well as any substances or features that would hinder the recycling of the tyres. With this information in hand, the recyclers will be able to sort the tyres in a manner that allows for safer recycled products and more efficient processing.

PERSISTENT HURDLES

According to Gomez, illegal or poorly regulated exports of tyres create serious problems both economically and environmentally. They drain valuable raw materials from the EU and risk harming the environment and public health in importing countries if ELTs are not treated in an environmentally sound manner.

Furthermore, the loss goes beyond the economic aspect when it comes to the materials used on tyres. Incinerating ELTs destroys a valuable resource like rubber and locks us into a linear economy model that’s no longer fit for purpose. Recycling, on the other hand, and overall circularity of tyres, keeps materials in the loop, boosts resilience and contributes to EU sustainability and competitiveness.

A strong starting point to combat illegal exports would be the rigorous enforcement of the Waste Shipment Regulation, specifically targeting ELT exports. If recyclers can count on a steady, reliable supply of materials, they will invest. Increased availability of material and supply security are essential to encourage investments in recycling.

“An important take-away of the policy related to tyre recycling is that tyres should be treated as strategic resources, not just waste. Tyres are essential to every economy activity and inevitably reach its end-of-life stage. This makes it critical to regulate the full lifecycle, from design to disposal, with circularity in mind. Aligning on principles, like prioritising recycling over landfilling or incineration, would already be a big step forward globally,” averred Gomez.

Commenting whether Europe’s mechanical recycling infrastructure is equipped to handle a sharp increase in ELTs if exports are banned, he mentioned, “The mechanical tyre recyclers in Europe are determined to meet the challenge and tackle the increase in ELTs if an export ban is implemented. However, unlocking further capacity and investments in future development projects depend on regulatory certainty. That means a guaranteed level playing field through harmonised EoW criteria, recycled content targets and eco-design for improved recyclability. With the right framework and tools, uncertainty can be removed and investments will follow.”

While the mandatory recycled content requirements are essential to boost recycling, complementary short-term financial incentives, whether market-based or fiscal, are equally necessary to close the price gap between primary and recycled materials. Fiscal incentives, such as reduced VAT rates for recycled materials and products made from recycled materials, can play a major role in encouraging uptake. Green public procurement also holds substantial potential to stimulate demand for more sustainable and circular products.

Recycled materials from ELTs have real potential in the EV supply chain. Interest is growing, and EuRIC is confident that recycled rubber can be a reliable, high-quality material to support the shift to greener mobility.

Gomez noted that there are many encouraging examples of manufacturers incorporating recycled and sustainable materials into tyre design. A great advantage that recycled materials from ELTs offer is the availability of high-quality recycled raw materials that reliably allow manufacturers to experiment and innovate as they know that the recycling industry is capable and ready to deliver.

70 Years Of Speciality Naphthenic Oils Innovation For Global Tyre Industry

Ergon

For over 70 years, Ergon has been delivering innovative products and service solutions for ever-changing needs. With more than 4,200 employees working across a solutions-driven supply chain, the company supports industries and communities globally. Customers can access Ergon’s products and services in more than 100 countries around the world.

Through an enhanced focus on the needs of speciality markets, Ergon has grown to become the world’s leading producer and marketer of naphthenic oils. Its horizons have expanded, but the mission remains the same: meet needs, support families, serve customers.

Ergon manufactures, markets and distributes speciality oils in the US, Latin America, Europe, the Middle East, Africa and Asia. Its strategically located terminals throughout these regions create a secure and consistent supply of speciality oils for customers.

As chemistries shift and the needs of customers evolve, Ergon is leveraging its expertise in speciality oils to advance industries, such as the tyre industry, with innovative, low-carbon solutions that meet the evolving demands of customers.

OVER 30 YEARS OF QUALITY PROCESSING AND TESTING

Customers can trust that Ergon’s process oils are formulated to meet exact specifications and undergo thorough testing. Ergon International partners with various laboratories, including its own US facilities and esteemed European laboratories, to rigorously test materials and deliver consistent, high-quality solutions. The company’s technical experts are recognised worldwide for their commitment to working with partners to advance industry standards for quality speciality oils.

HIGH-QUALITY OILS

Ergon’s process oils are genuine naphthenic oils produced to precise specifications and designed for a variety of processing applications. These oils offer low pour points, excellent solvency, low odour and strong colour stability. The products range from low (4 cSt) to high (936 cSt) viscosity, with blending capabilities to meet a range of industry needs.

TAILORED TYRE SOLUTIONS FROM A TEAM OF GLOBAL EXPERTS

Customers are seeking dependable solutions for an array of applications. Ergon’s experts understand the unique needs of each and tailor formulations to optimise product performance. The products, such as HyPrene Process Oils, are essential for a wide range of tyre applications, including passenger vehicles, heavy-duty trucks, off-road vehicles, aviation and motorcycles.

Properties such as viscosity, solvency, molecular weight, thermal stability and polarity are key to tyre performance. These chemical properties influence vulcanisation, flexibility, durability, traction and rolling resistance. Achieving the right balance can be a challenge, but Ergon’s team of technical experts is dedicated to developing formulations to meet customers’ specific tyre needs.

Sustainable tyre development prioritises eco-friendly process oils, such as bio-based and recycled materials, energy-efficient manufacturing and circular economy principles. This results in greater longevity of tyres through improved traction and rolling resistance.

Ergon’s tyre solutions help optimise safety, rolling resistance, grip and performance while reducing CO₂ emissions through the adoption of greener technologies. These advancements enable the development of specialised tyres, such as those for challenging terrains or for electric and autonomous vehicles.

PRODUCT COMPLIANCE

Ergon’s tyre oils, including naphthenic oils, are carefully monitored to meet stringent regulatory requirements, ensuring compliance with the amendment (EU) 2015/326 of Annex XVII to the REACH regulation (EC) 1907/2006; the European standard EN 16143:2013, which governs the determination of Benzo(a)pyrene (BaP) and selected polycyclic aromatic hydrocarbons in extender oils.

Additionally, Ergon supports tyre manufacturers in aligning with Regulation (EC) No. 1222/2009, which provides the EU framework for tyre labelling based on fuel efficiency, wet grip and noise performance. By prioritising both compliance and performance, Ergon’s process oils help customers navigate evolving industry standards while optimising tyre formulations.

ERGON PRODUCTS USED IN TYRES

Ergon Mineral Oil Products – Low-PAH Naphthenic Oils

  • HyPrene 100E (For High Filled Compounds)
  • HyPrene L1200 (Alternative for MES)
  • HyPrene L2000 (Alternative for TDAE, RAE and Black Oil)

Ergon Sustainable Products

  • ISCC + Naphthenic Oils – HyPrene Products
  • Recycled Oils – NuovoPrene Products
  • Bio-Based Oils – EcoPrene Products
  • 100% Bio-Based Oils – RBD Vegetable Oils

ERGON IS COMMITTED TO DOING RIGHT WITH ITS PRODUCTS, FOR THE PLANET, BY ITS PEOPLE AND THROUGH ITS PRINCIPLES.

Solutions to Meet Sustainability Targets

Ergon’s latest innovations focus on cleaner naphthenic oils and sustainable products, supporting eco-friendly materials from bio-based sources, such as EcoPrene Process Oils and RBD Vegetable Oils, or recycled sources, such as NuovoPrene Process Oils.

Recognised for Sustainability Excellence

In 2023, Ergon Refining Inc. (ERI), the company’s refinery in Vicksburg, Mississippi, which supplies naphthenic products around the world, received a silver medal from EcoVadis – a global platform that provides sustainability ratings.

Additionally, Ergon International has joined other Ergon Energy & Specialty Solutions companies in obtaining International Sustainability & Carbon Certification (ISCC PLUS) status, including for its HyPrene and NuovoPrene products. This certification highlights the company’s commitment to product traceability and recycling.

Helping Customers Meet Evolving Regulations

Ergon conducts Life Cycle Assessments (LCAs) for its naphthenic base oils, offering customers comprehensive evaluations of the environmental impacts of these solutions. LCAs serve as valuable resources for reducing environmental footprint and supporting customers in meeting their sustainability goals.

Accelerating Customer Success

Ergon is a service company dedicated to anticipating and meeting needs since 1954. The company transforms molecules into high-value solutions that improve the performance of products people use every day around the world. With its technical expertise and innovation, strategic logistics network and commitment to an exceptional customer experience, Ergon consistently leverages its resources to ensure customer success worldwide. That’s the Ergon way