Tyre Bead Removal: Equipment and Methods for Debeading Scrap Tyres

Updated on: 22nd February 2026 By:     Kieran Donnelly
Expert review by:     Conor Murphy

Every pneumatic tyre has two beads: one on each inner edge, where the tyre locks onto the wheel rim. The bead is a bundle of high-tensile steel wire formed into a continuous loop, wrapped in rubber, and reinforced with a fabric wrapping that holds the bundle together. Its job is to resist the radial forces that would otherwise pull the tyre off the rim under load, and it does this job exceptionally well. The bead seat interface between tyre and rim is engineered to hold against pressures that, in the case of truck tyres, can exceed 120 psi.

That strength and construction, which make the bead so effective in service, are exactly what make it significant at end of life. The bead contains a concentrated mass of high-tensile steel wire that behaves very differently from the dispersed steel belt in the tyre tread area. When a whole tyre enters a shredder, the bead wire eventually separates as a steel fraction, but it creates high blade loading, wraps around moving components, and complicates the separation stage. For granulation operations targeting fine crumb rubber, the bead is a problem that starts before the tyre even enters the primary shredder.

Debeading removes the steel bead wire from the tyre before any shredding or granulation begins, solving the downstream processing problem at source and recovering the bead wire as a clean, high-value steel fraction.

The Steel Content of Tyre Beads: What’s Actually in There

The bead wire in a car tyre typically weighs between 0.5 and 1.5kg depending on tyre size. A set of two beads from a single car tyre therefore represents 1 to 3kg of steel wire. From a standard 195/65R15 car tyre, approximately 1.2kg of bead wire is recoverable per tyre.

Truck tyre beads are substantially heavier. A single truck tyre bead wire bundle in the 315/80R22.5 range weighs 2 to 4kg, and the pair of beads from one truck tyre represents 4 to 8kg of steel. For bus, coach, and heavy commercial tyres the figures are similar.

At scale, these quantities become commercially significant. An operation processing 500 car tyres per day that debeads before shredding recovers 600 to 1,500kg of bead wire per day. Over a year, that is 150 to 375 tonnes of steel wire. At scrap steel prices, the annual steel recovery value from bead wire alone can represent a meaningful revenue stream that offsets processing costs.

The bead wire itself is a high-tensile steel wire and typically attracts pricing as a quality steel scrap fraction rather than as lower-grade shredded steel. The specific value depends on prevailing scrap steel market prices, which fluctuate, but the bead wire consistently carries value when recovered as a clean, separate fraction.

Why Debeading Matters for Crumb Rubber Production

The primary operational reason for debeading, separate from the steel recovery argument, is what the bead wire does to shredder and granulator blades if it’s left in the tyre.

In a primary tyre shredder, the bead wire eventually shreds, but the concentrated steel bundle creates localised high loads on the cutting blades as it passes through the cutting chamber. This accelerates blade wear in specific locations and can cause blade chipping if the bead wire bundle is particularly large or if it passes through the cutting gap in an unfavourable orientation.

In secondary granulators, the problem is more acute. Fine granulation requires the rubber to be reduced to chips of 2 to 10mm, which means the cutting gaps are tight and the blade speeds are high. Bead wire fragments passing through a fine granulator at these settings cause significant blade damage. Most granulator operators specify that input material should be bead-free precisely for this reason.

Even with magnetic separation at the granulator output, small fragments of bead wire that have been cut into short sections during granulation may not be fully removed by magnetic separators designed for the fine steel fabric typically present in shredded tyre material. A partially debeaded or un-debeaded feed to a granulator produces a crumb rubber output with higher steel contamination than the crumb rubber markets for sports surfaces and rubberised asphalt require.

For operations producing crumb rubber for premium end markets (sports surface infill for artificial turf, indoor track and playground surfaces), the metal content specification is tight. Achieving and maintaining that specification requires debeading as a standard step in the processing chain.

How Debeading Machines Work: The Mechanics

A debeading machine engages with the bead section of the tyre and extracts the bead wire bundle from the surrounding rubber. The engineering challenge is that the bead wire is intentionally embedded in rubber and wrapped with fabric to hold it in position; separating it cleanly requires force applied in the right direction.

The most common mechanism uses a hydraulic spike or pin that penetrates the bead area of the tyre, engaging with the steel wire bundle. Once engaged, the spike retracts or pivots, peeling the wire bundle away from the surrounding rubber. A pulling or levering action draws the bead wire clear of the tyre carcass.

Some debeading machines use a combined cutting and extraction approach: a blade first cuts through the rubber to expose the bead wire, and a separate mechanism then extracts the wire. This is more effective on tyres with thick or heavily bonded bead sections where extraction alone is insufficient.

For car tyres, the bead extraction force is relatively modest, and compact debeading machines handle car tyres quickly. For truck tyre beads, the force required is substantially greater, and machines designed for car tyres are not rated for truck tyre debeading. Always confirm the machine’s rated capacity against the tyre sizes you’re processing.

OTR tyre debeading requires the most substantial equipment. The bead wire in a large OTR tyre is significantly heavier and more firmly embedded than in road-going tyres, and dedicated equipment or on-site cutting approaches are required for the largest sizes.

Debeading in the Context of Baling Operations

An important clarification: debeading is not a standard step in tyre baling operations. For operations producing PAS 108-compliant tyre bales for civil engineering applications, energy recovery bales, or any other baled output, the tyre bead remains in the tyre body as part of the bale. This is entirely acceptable for all standard baling applications.

The MKII Tyre Baler processes tyres with beads in place without any issue. The bead wire within the compressed bale contributes to the bale’s structural integrity rather than causing any problem. PAS 108 bale specifications do not require debeading.

Where debeading becomes relevant in a baling-focused operation is if part of the tyre stream is being diverted to shredding or granulation rather than baling. If car tyres that don’t meet the specification for a particular bale (wrong size, mixed type, damaged carcass) are being sent to a granulation contractor rather than baled, knowing that the granulator prefers or requires debeaded input saves a conversation about feed specification.

For the majority of Gradeall customers whose primary processing route is baling, debeading is informative context rather than a required operational step. The full tyre recycling equipment range for baling-focused operations includes rim separation and sidewall cutting as the key pre-processing steps, not debeading.

Rim Separation vs. Debeading: The Distinction

Rim separation and debeading are sometimes confused but are distinct operations. Rim separation removes the wheel rim from the tyre: the steel alloy or pressed steel wheel that the tyre is mounted on. Debeading removes the steel wire bundle from within the tyre’s inner edge, after the rim has already been removed.

A tyre that arrives at a processing site still mounted on its rim needs rim separation first. The tyre rim separator handles this for car and light commercial tyres; the truck tyre rim separator handles HGV sizes. After rim separation, the tyre is off the rim but still has its bead wire intact within the tyre carcass.

Debeading is the subsequent step that removes this embedded bead wire from the now rim-free tyre. The two operations are sequential, not interchangeable. You cannot debead a tyre that is still on its rim because the rim physically blocks access to the bead area.

For operations that need both rim separation and debeading, position them sequentially: rim separation first, debeading second, then shredding or granulation. This is also the sequence that makes the workflow most practical because rim-mounted tyres are harder to handle than rim-free ones.

Setting Up a Debeading Operation: Practical Considerations

If you’re adding debeading to an existing tyre processing operation, the following considerations apply:

Throughput matching: The debeading stage needs to be capable of processing at the same rate as the upstream rim separation and the downstream shredding. If your shredder processes 2 tonnes of tyres per hour, your debeading operation needs to be able to debead at a rate that keeps the shredder fed. Undersizing the debeading capacity creates a bottleneck.

Bead wire collection: Extracted bead wire needs a collection container positioned directly at the debeader’s extraction point. The wire comes out in coiled or tangled bundles that are awkward to handle. A dedicated skip or bulk bag positioned to receive bead wire directly reduces handling time and keeps the work area tidy.

Rubber fragments: The debeading process removes the wire from the surrounding rubber, but some rubber remains attached to the wire. This doesn’t significantly affect the steel scrap value but does mean the bead wire collection contains some rubber. Scrap metal buyers know this and price accordingly. The rubber fragments that separate during debeading return to the main tyre processing stream.

Operator training: Debeading is a hydraulic pressing operation with the same general risks as other tyre processing equipment. Operators need specific training on machine operation, the correct positioning of tyres in the debeading zone, emergency stop procedures, and safe handling of extracted bead wire.

The Market for Recovered Bead Wire

Recovered bead wire is sold as scrap steel through standard scrap metal channels. The wire is a high-tensile steel, and its value as a scrap fraction depends on prevailing scrap steel prices and the specific grade pricing at your local scrap metal processor.

In practical terms, bead wire is typically priced as a steel wire scrap, which may command a modest premium over basic shredded steel scrap due to the higher-grade steel content. The rubber contamination on the wire (rubber that remains attached after extraction) is a known characteristic of bead wire scrap and is factored into pricing rather than treated as contamination that eliminates value.

For operations processing significant tyre volumes, establishing a regular collection arrangement with a scrap metal processor who is familiar with bead wire as a product type is more efficient than treating each batch as a novel material. Processors who regularly buy bead wire will have a price framework and collection schedule; those who don’t may apply a discount for unfamiliarity.

Frequently Asked Questions

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