Cut-, chip- and chunking-resistant tyres for surface mining, underground operations and quarry haulage trucks. Maximum durability on the hardest surfaces.
Mining operations subject commercial truck tyres to conditions no other application can match. The combination of extreme loads, abrasive rocky surfaces, sharp debris, steep gradients, slow speeds and high ambient temperatures creates an environment that exposes every weakness in tyre design and compound. A tyre that performs well on highways or in regional delivery service will often fail within weeks or even days in a mining environment. Understanding why mining is so hard on tyres is the first step towards selecting the right product and setting realistic expectations about service life.
Road surfaces in mining operations are made from the same material being extracted. In a granite quarry, haul roads are built with crushed granite whose angular edges are as sharp as blades, cutting into tread rubber with every revolution. In coal mining, roads may include shale fragments that embed in grooves and penetrate the belt package. In copper mining, haul road surface temperatures can exceed 65°C in late summer, adding extreme thermal stress to the mechanical abuse. Unlike sealed highways with a relatively even surface, mining haul roads change character with each load of material spread across them, creating inconsistent surface conditions that prevent tyres from developing predictable wear patterns.
Payload in mining constantly approaches the truck's maximum rated capacity and often exceeds it. An overloaded mining truck does not merely wear tyres faster; it fundamentally changes the distribution of stresses inside the tyre, concentrating forces in the shoulder area and raising internal temperature beyond the compound's design parameters. Fleet managers who invest in on-board scales and enforce payload limits at the shovel consistently achieve better tyre service life than operations that load solely by volume estimate.
Hanksugi offers several tyre models suited to the demands of mining and quarry service. The HS76 mixed-service all-position tyre provides sidewall protection and deep tread for all-position use on mining haulage trucks. The HS68 open-shoulder drive tyre uses stone protection and a wide tread footprint for traction on loose and gravelled surfaces. The HS66 trailer tyre serves mining trucks that cover highway sections between the mine site and processing plants. Every tyre is built on a retreadable casing, allowing operations to extract maximum value from their initial tyre investment.
Different mining operations create different challenges for tyres. A tyre that performs well at one site may fail rapidly at another because the type of rock, the gradient of the haul road and the operating conditions vary widely. Selecting the right tyre starts with understanding your specific environment.
All-position, drive and trailer tyres selected for the extreme demands of mining, quarry and aggregate haulage operations. Built to resist cut, chip and chunking damage on the hardest surfaces.
Mixed-service all-position tyre with extra-deep tread and reinforced sidewall protection. Retreadable casing. Designed for dry and wet performance on mining haul roads and quarry surfaces.
Regional open-shoulder drive tyre with stone protection and four de-coupling grooves. Wide tread footprint for traction on loose gravel roads, with stone ejection from tread voids.
Free-axle trailer tyre with low rolling resistance for mining trucks covering highway sections. Fuel-efficient on public roads and capable of handling the transition to unmade mine access roads.
Cut, chip and chunking damage (CCC) is the primary failure mode for tyres in mining operations. It is fundamentally different from the tread wear that limits service life on highways and requires a different approach to tyre selection and management. Understanding the mechanics of CCC damage helps fleet managers choose the right tyres and identify operational changes that can extend service life.
When a tyre rolls over the sharp edge of a rock, the rock applies a concentrated force to a small area of the tread surface. If that force exceeds the tear resistance of the rubber compound, the rock cuts into the tread creating a small incision. With repeated contacts over thousands of revolutions, these cuts propagate and small rubber chips separate from the tread surface. As cuts deepen and connect, larger chunks of compound break away from the lug surface, exposing the underlying structure to accelerated damage. In severe cases, chunking can remove entire lugs down to the belt package within just a few hundred hours of operation.
The rubber compound is the single most important factor in CCC resistance. Standard highway tyre compounds use softer formulations that prioritise grip and low rolling resistance on smooth pavement. These compounds tear easily when exposed to sharp rocky edges. Mining-grade compounds use higher natural rubber content, reinforced filler systems and cross-linking chemistry optimised for tear resistance rather than hysteresis. The Hanksugi HS76 uses a compound formulated specifically for mixed-service applications where CCC resistance is critical. The compound balances tear resistance against heat generation to prevent the secondary failure mode of thermal degradation that affects compounds which are too hard at low speeds.
The condition of haul roads has a greater impact on mining tyre service life than almost any other variable. A well-maintained haul road with adequately graded surfaces, controlled drainage and proper crown can extend tyre service life by 25 to 40 percent compared with a neglected road of the same material. Watering roads to control dust also reduces the abrasive action of fine particles on tyre surfaces. Rolling crushed material to break sharp edges before it becomes road surface reduces the cutting action that initiates CCC damage. Mining operations that invest in road maintenance crews and regular grading schedules consistently report lower tyre costs per tonne of material moved than those that treat haul roads as a secondary concern.
Mining trucks operate at low speeds carrying heavy loads on gradients. That combination produces intense internal heat inside the tyre. Unlike highway driving, where vehicle speed creates the airflow that cools the tyre surface, mining trucks moving between 24 and 40 km/h generate minimal cooling airflow, while the mechanical flexing of the tyre under maximum load continuously pumps heat into the rubber. Shoulder zone temperatures in a fully loaded mining tyre can exceed 105°C on a hot day. At these temperatures, rubber compounds begin to degrade, losing tear resistance and becoming more susceptible to CCC damage. Correct inflation pressure is critical to managing heat in mining tyres. Tyres with low pressure flex more, generate more heat and fail sooner. Check pressure daily and consider TPMS for critical haulage trucks.
Tyre cost is one of the five largest operating expenses in most mining operations and, unlike fuel and labour, tyre cost is highly controllable through operational practices. The difference between a well-managed and a poorly managed tyre programme at a quarry or mine site can represent 30 to 50 percent of the total annual tyre expenditure.
In mining, correct tyre inflation is not merely important — it is the single practice with the greatest impact on tyre cost control. A mining tyre running 20% below its required inflation pressure generates up to 40% more internal heat. At the loads and speeds of mining operations, that excess heat degrades the compound in hours, not kilometres. Check pressure on all positions before each shift and attend immediately to slow leaks. A TPMS system on a mining truck pays for itself with the first tyre failure avoided. Target pressures should be set based on the actual axle weight with trucks loaded, not on estimates.
Overloading is chronic in mining. Shovel operators load by bucket count or visual estimate, and both methods routinely exceed the truck's rated payload. Even 10% overload concentrates stress in the tyre shoulder area and dramatically increases the CCC damage rate by pressing the tread harder against rocky edges. Install on-board scales or payload monitors on haulage trucks and enforce strict limits at the rated payload. Record payload data by shift and shovel operator to identify loading patterns that systematically overload trucks. The cost of on-board scales is trivial compared with the tyre savings from eliminating chronic overloading.
Haul road maintenance is tyre maintenance. A dedicated grading crew keeping haul road surfaces smooth, with adequate crown and clear of large loose rocks, will save more in tyre costs than almost any other single investment. Water roads to control dust and reduce surface abrasion. Grade on a regular schedule rather than waiting for complaints. Where possible, use finer crushed material as a wearing course on haul roads to reduce the sharpness of rocky contacts. Limit vehicle speeds on haul roads to reduce the energy of rocky impacts on the tread. A well-maintained road can extend tyre service life by up to 40%.
A retreadable mining tyre casing can save between 40 and 60 percent of the cost of a new tyre. However, casings must be removed before the tread wears down to the belt package. In mining, where CCC damage can expose belts quickly in localised areas, this means inspecting tyre condition more frequently than in highway applications. Inspect tyres weekly, looking for deep cuts approaching belt depth, and remove tyres before localised damage compromises the casing. Label removed tyres with the truck number, axle position and reason for removal, so the retreading workshop can evaluate each casing with full operational context. Visit our retreading page for full details on Hanksugi casing acceptance criteria.
This guide covers the commercial truck tyre sizes used on road-going mining vehicles, not the giant off-highway tyres used on haul trucks inside open pits. If your mining trucks operate on public roads between mine sites and processing plants, these are the sizes and models that suit your operation.
| Tyre Size | Application | Hanksugi Models | Details |
|---|---|---|---|
| 11R22.5 | Steer, drive and trailer on mining haulage trucks | HS68, HS66 | See Size Guide |
| 11R24.5 | Drive and trailer on heavy mining configurations | HS68 | See Size Guide |
| 295/75R22.5 | Drive and trailer on mine-to-highway trucks | HS68, HS66 | See Size Guide |
| 295/80R22.5 | All-position for mining operations in Antigua and Barbuda | HS76 | See Size Guide |
| 285/75R24.5 | Drive on tandem-axle vocational mining trucks | HS68 | See Size Guide |
Mining tyre selection depends on the specific rock type, haul road conditions and truck configuration in your operation. Our fleet solutions team can visit your mine or quarry to assess conditions and recommend the optimum tyre configuration for your trucks. Contact us for a site-specific tyre cost analysis.
Common questions about tyres for mining trucks, quarry applications and resistance to cuts, chips and chunking.
Mining truck tyres use cut-, chip- and chunking-resistant tread compounds that withstand sharp rocky surfaces, deeper tread depth for longer service life at low speeds, reinforced sidewall construction that resists stone impact damage and higher load indices to handle the concentrated weight of mineral payloads. The rubber compounds are formulated to resist the abrasive action of crushed rock, which wears standard highway tyre compounds at an accelerated rate.
Mining tyre service life varies dramatically depending on the operation. Surface mining with well-maintained haul roads can achieve between 50,000 and 80,000 kilometres. Quarry operations with sharp aggregate typically yield between 20,000 and 50,000 kilometres. The main factors are rock sharpness, haul road condition, loading practices and operating speed. Measuring service life in hours is often more meaningful than in kilometres in mining, since speeds are low.
Road-going mining trucks typically use tyres in sizes 11R22.5, 11R24.5 or 295/80R22.5. These are standard commercial truck sizes for Class 7 and Class 8 vehicles that transport material over public roads between mine sites, quarries and processing plants. They differ from the enormous off-highway haul trucks used inside open pits, which use giant tyres in sizes such as 27.00R49.
CCC damage occurs when sharp rocky edges cut into the tread rubber, dislodging small pieces with each contact. Road surfaces are typically composed of crushed rock with angular, sharp edges. As the tyre rolls across these surfaces, the lugs contact the rocky edges, accumulating cuts that eventually propagate into chips and larger chunks breaking away. Granite and basalt quarries are particularly aggressive due to the extreme hardness and sharpness of the aggregate.
Yes, mining truck tyres can be retreaded if the casing passes inspection. The key is to remove tyres before the tread wears down to the belt package and to maintain correct inflation throughout the service life. A retreadable mining casing can save between 40 and 60 percent of the cost of a new tyre. Visit our retreading page for more details.
The most effective strategies are: maintain correct inflation pressure, match tyre selection to the specific mine conditions, maintain haul roads to reduce exposure to sharp rocks, enforce payload limits at the shovel, implement a tyre monitoring programme and preserve casings for retreading. Haul road maintenance alone can extend service life by 25 to 40 percent. Combined, these practices can reduce tyre cost per tonne by 30 to 50 percent compared with unmanaged programmes.