Every vehicle on the road eventually produces worn tyres. Left in stockpiles, they take up space, collect water and create a fire risk. Processed in a recycling plant, they become rubber granulate, rubber powder, steel wire and other materials with real buyers.
For investors and industrial groups, tyre recycling combines a steady supply of raw material with products that serve construction, sports, automotive and steel industries. This article looks at what a tyre contains, the main recycling routes and how to choose a plant.
What is inside a tyre
A passenger or truck tyre is a composite product. The main components that a recycling plant recovers are:
- Rubber compounds, made of natural and synthetic rubber with carbon black and other fillers.
- Steel wire from the bead and the steel belts under the tread.
- Textile fibre, such as nylon or polyester cord, mainly in passenger tyres.
Truck tyres usually contain more steel and natural rubber. Passenger tyres contain more textile. The mix of tyres a plant receives affects its equipment, its output and its income, so it is one of the first things to study.
Mechanical recycling: shredding and granulating
Mechanical recycling is the most common route. It breaks tyres down step by step without changing the rubber chemically.
- Pre-treatment: bead wire removal for large tyres, and sometimes cutting truck tyres into sections.
- Primary shredding: tyres are cut into large chips.
- Secondary shredding or rasping: chips are reduced in size and much of the steel is freed.
- Granulating: the material is ground into rubber granulate of defined sizes.
- Separation: magnets remove the steel, and air classifiers and screens remove the textile fibre.
- Fine grinding (optional): granulate is milled into rubber powder for higher-value uses.
Some plants use cryogenic grinding, where rubber is cooled until brittle and then crushed. It produces a clean, fine powder but needs a reliable supply of liquid nitrogen, which adds operating cost.
Products and their markets
A recycling plant earns its income from several products. Knowing who will buy each one is as important as choosing the machines.
- Rubber chips: used as tyre-derived fuel in cement kilns or as fill material in civil engineering.
- Rubber granulate: used in sports surfaces, playground flooring, rubber mats and moulded products.
- Rubber powder: used in rubber-modified asphalt, new rubber compounds and moulded parts.
- Steel wire: sold to steel mills and scrap dealers.
- Textile fibre: can be used as a filler or fuel, though it is often the hardest output to sell.
Local demand for these products differs from country to country. In Saudi Arabia and the Gulf, road construction, sports facilities and the steel industry offer possible outlets, but each should be confirmed during the feasibility stage.
Thermal routes: pyrolysis and devulcanisation
Beyond mechanical recycling, some plants use thermal or chemical processes. Pyrolysis heats tyre material without oxygen and breaks it down into oil, gas, recovered carbon black and steel. The oil can be used as fuel or refined further, and the gas can heat the process itself.
Pyrolysis can turn low-value material into energy products, but it needs careful design, emissions control and a clear plan for selling the recovered carbon black, whose quality varies. Devulcanisation is another option: it treats rubber powder so it can be mixed back into new rubber compounds, which links recycling directly to tyre manufacturing.
Choosing the right plant setup
There is no single correct design. A good plant concept follows from a few key questions:
- How many tyres can be collected each year, and from where?
- What is the mix of passenger, truck and off-road tyres?
- Which products have secure buyers nearby?
- Are there gate fees or regulations that support collection and recycling?
- How much land, power and water is available at the site?
Many projects start with a mechanical line producing chips, granulate and steel, then add fine grinding, moulded product lines or pyrolysis once the plant is running and the market is proven. This keeps the first investment manageable and lets the plant pay for its own expansion.
Equipment quality matters a great deal. Shredders and granulators face heavy wear, so blade life, spare parts supply and service access affect running costs as much as the purchase price. Well-maintained used European equipment can be a good option when it is inspected and rebuilt properly.
Safety and environment also need attention. Tyre storage areas need fire protection and spacing between piles, and shredding lines need dust and noise control.
Final thoughts
Tyre recycling works best when collection, processing and sales are planned together. The plant is only one part of the business.
Wavy Solutions works in both tyre manufacturing and tyre recycling and can help with feasibility studies, process selection and sourcing of European equipment.