Tires resistant to cuts, astillas and despperformances for mining of superficie, operations subterráneas and trucks of acarreo in quarries. Máxima durability in surfaces more hard.
The operations mining someten a the tires of truck commercial a conditions that no another application iguala. The combinestion of loads extreme, surfaces rocky abrasivas, debris sharps, steep gradients, speeds slow and high temperatures ambiente creates a entorno that expone each weakness in the design and compound of the tire. A tire that performs well in highways or in service of reparto regional suele fallar in semanas or even days in a entorno mining. Entender by what the mining is so hard for the tires is the primer paso for seleccionar the product adecuado and establecer expectativas realistas about your service life.
The surfaces road in operations mining are compuestas by the same material that se extrae. En 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 load of material that se extends, creating conditions of surface inconsistent that impiden that the tires desarrollen patterns of wear predecibles.
The loads useful in mining constantly alcanzan the capacity maximum of the truck and a menudo the superan. A truck mining overloaded no only wears the tires faster; changes fundamentally the distribution of stresss inside the tire, 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 load in the pala achieve consistentmente better service life of tire that the operations that loadn únicamente by estimate of volume.
Hanksugi offers multiple models of right tires for demands of the service mining and of quarry. The tire 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 tire HS68 of drive of open shoulder usa protection against stones and geometry of band wide for drive in surfaces sueltas and with gravel. The tire of trailer HS66 sirve a trucks mining that recorren sections of highway between the mina and the plants of processing. Every tire is built about a retreadable casing, allowing to the operations extraer the máximo valor of the investment initial in tires.
Different operations mining generate different challenges for tires. A tire that performs well in a mina can fail rapidly in another because the rock type, the slope of the road of acarreo and the conditions of operation vary widely. Selecting the right tire starts by understanding your specific environment.
Tires of all-position, drive and trailer seleccionadas for demands extreme of operations mining, of quarry and of acarreo of aggregates. Built for resistir damage by cut, astilla and despperformance in surfaces more hard.
Tire 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 tire 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.
Tire of trailer of free axle with low rolling resistance for trucks mining that recorren sections of highway. Eficiente in consumption of fuel 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 tires 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 tires. Understanding the mechanics of CCC damage ayuda to the administrators of fleets a choose the right tires e identificar cambios operativos that can extend service life.
When a tire rueda about the edge sharp of a roca, the rock applies a concentrated force about a small area of the surface of the band. If the force exceeds the tear resistance of the rubber compound, the roca 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 to accelerated damage. 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 factor more importante in the resistance to the CCC. The compounds estándar of tires 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, sistemas of load reinforced and química of cross-linking optimised for tear resistance instead of hysteresis. The Hanksugi HS76 usa a compound formulado específicamente for applications of mixed service where the resistance to the CCC is crítica. El compound balancea the tear resistance frente to the generation of heat for prevenir the mode of failure secundario by degradation thermal that affects to the compounds that are too hard a low speeds.
The condition of roads of acarreo has higher impact in the service life of the tire mining that almost any another variable. A road of acarreo well mantenido with surfaces properly niveladas, drenaje controlado and crown apropiada can extend the service life of the tire 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 tires. 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 tire 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 combinestion produces intense internal heat inside the tire. Unlike highway driving, where speed creates the airflow that cools the tire surface, mining trucks moving between 24 and 40 km/h generate minimal cooling airflow, while the mechanical flexing of the tire under maximum load continuously pumps heat into the rubber. The temperature in the area of the shoulder of a tire 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 inflado adecuada is crítica for manejar the heat in tires mining. The tires 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 tires is uno of five principales expenses operativos in the most of operations mining y, a difference of the fuel and the mano of worksite, the cost of tires is highmente controlable through prácticas operativas. The difference between a tire program well gestionado and uno badly gestionado in a quarry or mina can representar between the 30 and the 50 percent of the expense total anual in tires.
En mining, proper tire inflation is not only important, but that is the single practice with the highest impact in the control of costs of tires. A tire mining with 20% by below of its required inflation pressure generates up to 40% more internal heat. At the loads and speeds of operations mining, that excess heat degrades the compound in hours, not kilometers. Check the pressure on all positions before each turno and attend immediately to the slow leaks. A TPMS system in a truck mining se paga only with the first failure of tire avoidsda. Target pressures must pay attention with base in the weight real by axle with trucks loaddos, no in estimates.
The sobreload is crónica in mining. operators of pala loadn by conteo of baldes or estimate visual, and ambos méall rutinariamente superan the load useful qualified of the truck. Even a 10% of sobreload concentra stresss in the area of the shoulder of the tire and increases 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 load in trucks of acarreo and establezca limits estrictos in the load qualified. Registre datos of load by turno and operator of pala for identificar patterns of cargue that sistemáticamente sobreloadn the trucks. El cost of básculas a bordo is trivial comparesdo with the savings in tires to the eliminar the sobreload crónica.
The maintenance of the road of acarreo is maintenance of tires. A cuadrilla dedicated of levelling that maintain the surfaces of roads of acarreo lisas, with crown adecuada and free of rocks sueltas larges, saveá more costs of tires 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 capas 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 tire up to a 40%.
A casing of tire mining retreadable you can save between the 40 and 60 percent of the cost of a tire 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 rápidamente the belts in areas localizadas, this implica monitorear the condition of the tires with higher frequency that in applications of highway. Inspeccione the tires semanalmente searching cuts deep that se acerquen to the depth of belts and retire the tires before that the damage localizado comprometa the casco. Etiquete the tires retiradas with the number of the truck, the position and the razón of the retiro, so that the workshop of retreading can evaluar each casing with contexto operativo complete. Visite our retreading page for learn aboutr the details about the criterios of acceptance of casings of Hanksugi.
This guide covers the commercial truck tire sizes used in vehicles mining viales, no the tires 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 Tire | 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 Israel | HS76 | See Guide of Size |
| 285/75R24.5 | Drive in trucks vocational mining of axle tandem | HS68 | See Guide of Size |
The choice of tires mining depends on the specific rock type, 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 evaluar the conditions and recommend the configuration óptima of tires for your trucks. Contact Us for a analysis of cost of tires specific for your sitio.
Questions common about tires for trucks minings, applications in quarries and resistance a cuts, astillas and despperformances.
The tires for trucks mining usan compounds of band resistant to cuts, astillas and despperformances that supporting surfaces rocky filudas, depths of band higher for higher service life a low speeds, construction of sidewall reinforced that resists damage by impact e índices of load more high for loads minerales concentradas. The compounds of rubber are formulados for resistir the action abrasiva of the roca triturada, that wears the compounds estándar of tires of highway a a ritmo acelerado.
The service life of the tires 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 tire service life in service hours suele be more meaningful than in kilometers in mining, since the speeds are low.
The trucks mining road típicamente usan tires 11R22.5, 11R24.5 or 295/80R22.5. These are sizes estándar of truck commercial 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 tires 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 a menudo is compuesta by roca triturada with edges angulares sharps. A size that rueda the tire, 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 tires for trucks mining can retreaded si the casing pasa the inspection. The clave is retirar the tires before that the band se wear up to the belt package and maintain proper inflation during all the service life. A casing mining retreadable you can save between the 40 and the 60 percent of the cost of a tire new. Visite our retreading page for more details.
The estrategias more efectivas are: maintain the inflation pressure adecuada, adecuar the choice of tires to the conditions of the mina, maintain the roads of acarreo for reduces the exposition a rocks filudas, do meet the limits of load useful in the pala, implementar a program of monitoreo of tires 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 tire by tonne between 30 and 50 percent comparesdo with programs no gestionados.