Tyres resistant to cuts, astillas and despperformances for mining of superficie, operations subterráneas and trucks of acarreo in quarries. Maximum durability in surfaces more hard.
The operations mining someten a the commercial truck tyres a conditions that no another application iguala. The combination of freight extremas, surfaces rocky abrasivas, debris sharps, steep gradients, speeds slow and high temperatures ambiente creates a environment that expone each weakness in the design and compound of the tyre. A tyre that performs well in highways or in service of delivery regional suele fallar in semanas or even days in a environment mining. Entender by what the mining is so hard for the tyres is the primer step for seleccionar the product adequate and establecer expectativas realistas about your service life.
The surfaces road in operations mining are compuestas by the same material that se extrae. On a quarry of granito, the roads of acarreo se construyen with granito triturado with edges angulares sharp as navajas that cortan tread rubber in each revolution. En the mining of coal, the roads can incluir fragments of esquisto that se incrustan in grooves and perforan the belt package. En the mining of cobre, the roads of acarreo can reaching temperatures superficiales superiores a 65°C in lates of verano, adding estrés thermal extremo to the abuse mecánico. A difference of sealed highways that feature a surface relativamente even, the roads of acarreo mining cambian of carácter with each freight of material that se extends, creating conditions of surface inconsistent that impiden that the tyres desarrollen patterns of wear predecibles.
The freight useful in mining constantly reach the capacity maximum of the truck and often the superan. A truck mining overloaded no only wears the tyres faster; changes fundamentally the distribution of stresss inside the tyre, concentrating forces in the area of the shoulder and raising the temperature interna more beyond of parameters of design of the compound. The administrators of fleets that invierten in básculas a bordo and do meet the limits of freight in the pala achieve consistentmente better service life of tyre that the operations that loadn only by estimate of volume.
Hanksugi offers múltiples models of tyres adequate for demands of the service mining and of quarry. The tyre HS76 of mixed service and all-position provides protection of sidewall and band deep for use in all-position in trucks of acarreo mining. The tyre HS68 of drive of open shoulder usa protection against stones and geometry of band wide for drive in surfaces sueltas and with gravel. The tyre of trailer HS66 sirve a trucks mining that recorren sections of highway between the mina and the plants of processing. Every tyre is built about a retreadable casing, allowing to the operations extraer the maximum value of the investment initial in tyres.
Different operations mining generate different challenges for tyres. A tyre that performs well in a mina can fallar quickly in another because the type of roca, the slope of the road of acarreo and the conditions of operation vary widely. Selecting the tyre adequate starts by understanding your specific environment.
Tyres of all-position, drive and trailer seleccionadas for demands extremas of operations mining, of quarry and of acarreo of aggregates. Built for resistir damage by cut, astilla and despperformance in surfaces more hard.
Tyre of mixed service and all-position with tread extra deep and protection of sidewall reinforced. Casing retreadable. Designed for performance in dry and wet in roads of acarreo mining and surfaces of quarry.
Drive tyre regional of open shoulder with protection against stones and four grooves of desacople. Footprint of band wide that offers drive in roads of gravel suelta, resisting the retention of stones in huecos of the band.
Tyre of trailer of axle free with low rolling resistance for trucks mining that recorren sections of highway. Eficiente in fuel consumption in roads públicas and capaz of manejar the transition a roads mining rústicos.
The damage by cut, astilla and despperformance (CCC) is the mode of failure main of the tyres in operations mining. Es fundamentally different of the wear of band that limita the service life in highways, and requires a enfoque different for the choice and management of tyres. Entender the mechanical of the damage CCC ayuda to the administrators of fleets a choose the right tyres e identify cambios operativos that can extend service life.
When a tyre wheel about the edge sharp of a roca, the rock applies a concentrated force about a small area of the surface of the band. Si the force exceeds the tear resistance of the rubber compound, the rock short the band creating a small incision. With repeated contacts across thousands of revolutions, these cuts propagate and small rubber chips separate from the surface of the band. As cuts deepen and connect, chunks more larges of compound break off the lug surface, exposing the underlying structure a damage accelerated. In casos severe, the despperformance can remover tacos enteros up to the belt package in some few hundreds of horas of operation.
The rubber compound is the most important factor in the resistance to the CCC. The compounds standard of tyres of highway usan formulations more soft that prioritise grip and low rolling resistance about pavement liso. These compounds se rasgan easily to the be exposed a edges rocky sharps. The compounds grado mining usan higher contenido of natural rubber, systems of freight reinforced and química of cross-linking optimised for tear resistance instead of hysteresis. The Hanksugi HS76 usa a compound formulado specifically for applications of mixed service where the resistance to the CCC is crítica. El compound balancea the tear resistance front to the generation of heat for prevent the mode of failure secundario by degradation thermal that affects to the compounds too hard a low speeds.
The condition of roads of acarreo has higher impact in the service life of the tyre mining that almost any another variable. A road of acarreo well mantenido with surfaces adequately niveladas, drainage controlado and crown apropiada can extend the service life of the tyre between 25 and 40 percent comparesdo with a road descuidado of the same material. Regar the roads for controlar the polvo also reduces the action abrasiva of partículas finas about the surfaces of tyres. Rodar the material triturado for romper the edges sharps before that se convierta in surface of the road reduces the action of cut that start the damage CCC. The operations mining that invierten in cuadrillas of maintenance road and cronogramas of levelling reportan consistentmente lower costs of tyre by tonne of material movido that those that tratan the roads of acarreo as something secundario.
Mining trucks operate at low speeds carrying heavy loads on grades. That combination produces intense internal heat inside the tyre. Unlike highway driving, where speed creates the airflow that cools the tyre surface, mining trucks moving between 24 and 40 km/h generate minimal cooling airflow, while the flexión mechanical of the tyre under freight maximum bombea heat continuously towards the rubber. The temperature in the area of the shoulder of a tyre mining loaded to the maximum can exceed 105°C in a hot day. At these temperatures, the compounds of rubber begin to degrade, losing tear resistance and volviéndose more susceptibles to the damage CCC. The pressure of inflated adequate is crítica for manejar the heat in tyres mining. The tyres with pressure low flex more, generate more heat and fallan before. Check the pressure daily and considere TPMS for trucks of acarreo críticos.
The cost of tyres is one of five main expenses operativos in the most of operations mining y, a difference of the fuel and the mano of worksite, the cost of tyres is highmente controlable through prácticas operativas. The difference between a tyre program well gestionado and one badly gestionado in a quarry or mina can representar between the 30 and the 50 percent of the expense total annual in tyres.
En mining, the inflated adequate of the tyre no only is important, but that is the single practice with the highest impact in the control of costs of tyres. A tyre mining with 20% by below of your pressure of inflated required generates up to 40% more internal heat. A the freight and speeds of operations mining, that excess heat degrades the compound in hours, not kilometres. Check the pressure on all positions before each turno and attend immediately to the slow leaks. A TPMS system in a truck mining se pays only with the first failure of tyre avoidsda. Target pressures must pay attention with base in the weight real by axle with trucks loaddos, no in estimates.
The overload is crónica in mining. operators of pala loadn by conteo of baldes or estimate visual, and ambos méall rutinariamente superan the freight useful qualified of the truck. Even a 10% of overload concentrates stresss in the area of the shoulder of the tyre and increasessss dramáticamente the tasa of damage CCC to the pressurear the band with higher force against the edges rocky. Instale básculas a bordo or monitores of freight in trucks of acarreo and establezca limits strict in the freight qualified. Registre datos of freight by turno and operator of pala for identify patterns of cargue that sistemáticamente overloadn the trucks. El cost of básculas a bordo is trivial comparesdo with the savings in tyres to the eliminar the overload crónica.
The maintenance of the road of acarreo is maintenance of tyres. A cuadrilla dedicated of levelling that maintain the surfaces of roads of acarreo lisas, with crown adequate and free of rocks sueltas larges, saveá more costs of tyres that any another investment individual. Riegue the roads for controlar the polvo and reduces the abrasion superficial. Nivele the roads in a cronograma regular instead of esperar a that aparezcan quejas. Where is posible, use material triturado more fino for plies of tread of roads of acarreo for reduces the agudeza of contacts rocky. Limite the speeds of vehicles in roads of acarreo for reduces the energy of impacts rocky about the band. A road well mantenido can extend the service life of the tyre up to a 40%.
A casing of tyre mining retreadable you can save between the 40 and 60 percent of the cost of a tyre new. But the casings must be retired before that the band se wear up to the belt package. En mining, where the damage CCC can exponer quickly the belts in areas localizadas, this implica monitorear the condition of the tyres with higher frequency that in applications of highway. Inspeccione the tyres weekly searching cuts deep that se acerquen to the depth of belts and remove the tyres before that the damage localizado comprometa the casing. Etiquete the tyres removed with the number of the truck, the position and the razón of the retiro, so that the workshop of retreading can evaluate each casing with contexto operativo complete. Visit our retreading page for learn aboutr the details about the criterios of acceptance of casings of Hanksugi.
This guide covers the commercial truck tyre sizes used in vehicles mining viales, no the tyres giants outside highway used on haul trucks in open pits. Si your trucks mining operate by roads públicas between sites mining and plants of processing, these are the sizes and models that serve a your operation.
| Size of Tyre | Application | Models Hanksugi | Details |
|---|---|---|---|
| 11R22.5 | Steer, drive and trailer in trucks of acarreo mining | HS68, HS66 | See Guide of Size |
| 11R24.5 | Drive and trailer in configurations mining heavys | HS68 | See Guide of Size |
| 295/75R22.5 | Drive and trailer in trucks mina-highway | HS68, HS66 | See Guide of Size |
| 295/80R22.5 | All position for operations mining in Australia | HS76 | See Guide of Size |
| 285/75R24.5 | Drive in trucks vocational mining of tandem axle | HS68 | See Guide of Size |
The choice of tyres mining depends on the type specific of roca, the conditions of the road of acarreo and the truck configuration in your operation. Our equipment of solutions for fleets can visitar your mina or quarry for evaluate the conditions and recommend the configuration óptima of tyres for your trucks. Contact Us for a analysis of cost of tyres specific for your sitio.
Questions common about tyres for trucks minings, applications in quarries and resistance a cuts, astillas and despperformances.
The tyres for trucks mining usan compounds of band resistant to cuts, astillas and despperformances that supporting surfaces rocky filudas, depths of band higher for longer service life a low speeds, construction of sidewall reinforced that resists damage by impact e índices of freight higher for freight minerales concentradas. The compounds of rubber are formulados for resistir the action abrasiva of the rock triturada, that wears the compounds standard of tyres of highway a a ritmo accelerated.
The service life of the tyres mining varies dramatically according to the operation. The surface mining with well-maintained haul roads can reaching between 50.000 and 80,000 km. The operations of quarry with sharp aggregate typically log between 20.000 and 50,000 km. The main factors are rock sharpness, the condition of the road of acarreo, loading practices and the speed of operation. Measuring tyre service life in service hours suele be more meaningful than in kilometres in mining, since the speeds are low.
The trucks mining road typically usan tyres 11R22.5, 11R24.5 or 295/80R22.5. These are sizes standard of commercial truck for vehicles Clase 7 and Clase 8 that transport material by roads públicas between minas, quarries and plants of processing. These are distintas of enormes trucks of acarreo outside highway used within tajos minings, that use tyres giants in sizes as 27.00R49.
The damage CCC ocurre when edges rocky sharps cortan the rubber of the band, starting small pieces with each contact. The surface of the road often is compuesta by rock triturada with edges angulares sharps. A size that wheel the tyre, the tacos contactan these bordes, accumulating cuts that eventualmente se propagan in astillas and despperformances higher. The quarries of granito and basalt are particularmente aggressive due to the extrema dureza and agudeza of the agregado.
Yes, the tyres for trucks mining can retreaded si the casing passes the inspection. The clave is remove the tyres before that the band se wear up to the belt package and maintain the inflated adequate during all the service life. A casing mining retreadable you can save between the 40 and the 60 percent of the cost of a tyre new. Visit our retreading page for more details.
The estrategias more effective are: maintain the inflation pressure adecuada, adecuar the choice of tyres to the conditions of the mina, maintain the roads of acarreo for reduces the exposition a rocks filudas, do meet the limits of freight useful in the pala, implementar a program of monitoring of tyres and preservar casings for retreading. El maintenance of the road by yes only can extend the service life between 25 and 40 percent. Combinadas, these prácticas can reduces the cost of tyre by tonne between 30 and 50 percent comparesdo with programmes no gestionados.