Tyres of mixed service resistant to cut and astillado designed for sites of construction, quarries and operations demanding in highway/outside of highway.
The trucks commercial that operate in sites of construction, quarries, mining operations and roads of access of the sector energético face a environment of tyres that would destroy a tyre standard of highway in semanas. The unsealed surfaces in these sites of work are covered of rock triturada, concrete roto, extremes of varilla, rthiss of timber with clavos and aggregate afilado that arrancan the rubber of the band with each revolution. The compounds standard of highway are too frágiles for these conditions — se fracturan and pierden chunks of rubber of the band, a mode of degradation conocido like damage by cut and astillado that can reduces the service life of a tyre of highway in a 50% or more in service all terrain.
The tyres for truck all terrain and construction abordan this challenge through three changes fundamentales of engineering in comparison with the tyres of highway. First, the compound of the band usa a formulation of rubber different with higher contenido of natural rubber and agentes reinforcing specialised that allow to the rubber flex around objetos sharp instead of fracture to the impact. This compound resistant to cut and astillado absorbs the energy of the contact with rocks sharp without perder chunks of material of band. Drynd, the pattern of band has áreas of empty widers between the blocks of band that allow that the mud, the gravel and the debris se eliminen of the contact patch with each revolution, maintaining the drive in surfaces soft where a band of highway obstruida would turn in empty. Third, the construction of the casing includes layers protectoras adicionales and sidewalls reinforced that protect against the punctures and damage by impact inevitables in environments all terrain.
The challenge for gthisres of fleets is that the capacity all terrain viene with offsets. El same pattern of band aggressive that despeja the mud also creates more ruido and resistance to the tread in surfaces of highway. The band more thanep that provides service life extended in uneven roads generates more heat a speeds of highway sustained. El compound resistant to cut that survives a rocks sharp se wears faster in pavement liso that a formulation optimised for highway. Por this, the choice of tyres for operations all terrain requires entender the cycle of work specific — the percentage of kilometres in surfaces sealeds versus unsealed, the severity of conditions all terrain and the requisitos of speed in sections of highway — for find the tyre that entregue the better performance total a along all the route, no only in the portion of the site of work.
Tyres of drive of open shoulder, mixed service and all position with compounds resistant to cut and astillado built for sobrevivir sites of construction, quarries and terrain uneven while maintain a performance aceptable in highway.
Drive tyre of open shoulder with protection antirroca and compound resistant to grietas/chunking. Footprint of band wide with four grooves of desacople for drive in surfaces sueltas e uneven. Excellent for operations mixed of highway/sitio of work.
Tyre all position with tread extra deep of 15.5mm and protection of sidewalls for applications of construction and all terrain. Casing retreadable with excellent performance in dry and wet in positions of steering, drive and trailer.
The engineering of tyres all terrain and construction se enfoca in three áreas that the tyres of highway barely consideran: durability of the compound against objetos sharp, capacity of self-cleaning of the pattern of band and protection of the casing against impacts and penetration.
The compound of the band is the first line of defensa against the damage all terrain. The compounds resistant to cut and astillado usan higher proportions of natural rubber, that has inherentemente better resistance to the desgarro that the rubber sintético. These compounds also incorporan landfills specialised of black of humo and yeslice that refuerzan the matriz of rubber a level molecular, allowing that the band absorba impacts of rocks sharp without fracture. The HS84 usa a compound advanced of cut and astillado that offers a service life of band measurable higher in surfaces with aggregate in comparison with compounds standard of highway. This technology allows that the band se flexione around objetos sharp instead of fracture, preventing the loss of chunks that destruye tyres of highway in service all terrain.
The puncture by stones is a of forms more insidiosas of damage a tyres in operations of construction and quarries. The stones se alojan in grooves of the band and are golpeadas more thanepmente with each revolution up to penetrar the rubber of the band and entrar in contact with the belt package of steel. Unonce the moisture reaches the belts throughl canal perforado by the stone, comienza the corrosion, causing eventualmente the separation of the belt and failure catastrófica. The HS84 has ribs of axlection of stones — small crthese in the base of grooves of the band that avoidsn that the stones se asienten it suficientemente deep for start the puncture. These features empujan actively the stones outside the grooves while the band se flexiona during the rotation, maintaining the grooves cleans and protecting the belt package.
The tyres all terrain face hazards in sidewalls that the tyres of highway never find: rocks levantadas by others vehículos, debris a along edges of roads unsealed, tocones and chunks of concrete in sites of construction, and the flexión constante on surfaces uneven. The tyre all position HS76 includes protection of sidewalls integrada that adds esweightr of material and resistance to the impact in the área vulnerable between the edge of the band and the ceja. This layer adicional absorbs impacts that would cut a sidewall standard, preserving the integrity of the casing and extending the service life of the tyre. Maintain the pressure of inflation suitable is igualmente critical, since a sidewall under-inflation se flexiona more and is more vulnerable a punctures.
Different industries all terrain feature distintos challenges of tyres. The right tyre depends on hazards específicos, the freight and the proportion highway/sitio of work of its operation.
The sites of construction general feature a mezcla of peligros: aggregate loose in roads of access, debris with varillas and clavos in áreas of prepair, and terrain uneven in sites of excavation. the trucks operate a low speeds in the site but must maintain capacity of highway for trips between proyectos. The is the recommendation main of tyre of drive for construction general because its compound of cut and astillado maneja the environment mixed of debris while the features of axlection of stones protect against the gravel común in roads of access of construction. Para operations that pass more time in sealed roads between sites of work, the HS68 provides good drive in surfaces sueltas with better efficiency of fuel in highway.
The operations in quarries are the environment most demanding for commercial truck tyres. The surfaces are covered with rock recently triturada that has edges sharp like navaja, the slopes are pronounced and the freight are in maximum weight legal or by encima. The tyres in service of quarry face exposition constante to the cut and astillado by the aggregate afilado, puncture by stones alojadas in surcos, and generation excesiva of heat by the freight heavys in steep gradients. The with its compound of cut and astillado of maximum grado is the recommendation more strong for positions of drive in quarries. Check and remove the stones alojadas daily, and maintain disciplina strict of inflation — the freight heavys and steep gradients in operations of quarry generate heat enorme in tyres subinfladas.
The trucks of the sector energético — vehicles of oil & gas services, support a construction of oleoductos, logistics of parques eólicos — cover long distances in sealed highways for llegar a sites of work remotes conectados by roads of access badly mantenidas. The proportion of highway a all terrain is typically higher that in operations of construction or quarry, which does that the efficiency of fuel in sections of highway is more important. The HS68 is suitable for operations of the sector energético because its design of open shoulder maneja roads of access unsealed while its compound of band offers fuel economy aceptable during the long sections of highway. The protection antirroca is particularly valiosa in surfaces of rock triturada used for roads of access a servidumbres of oleoductos.
The logging roads feature unique hazards that differ of environments of construction or quarry: surfaces soft and muddy that require band aggressive autolimpiable; stumps and roots that threaten sidewalls; and steep gradients that demand maximum drive. The combination of freight heavys (the loaded logging trucks are between the vehicles legal more heavys in the road) with bad conditions of surface means that the logging operations need tyres with patterns of aggressive drive and resistance estructural. The tyre all position HS76 offers versatility for operations that need a model of tyre in múltiples positions of axle, with the protection of sidewalls and band deep that the actilifed logging demand. Para positions dedicated of drive in logging trucks, the provides maximum drive and resistance to the cut.
On sealed highways, tread voids (the grooves and channels between tread blocks) serve mainly as water channels preventing hydroplaning. The size and depth of these voids are minimised on highway tyres to reduces rolling resistance and noise. Out of highway, the emptys meet a propósito completemente different: must aceptar, retener temporalmente and then expel the mud, arcilla, arena, gravel and debris that the tyre collects with each revolution.
A tyre with emptys little deep or blocks of band apretadamente agrupados se will pack with mud in minutos in a site of work of surface soft, becoming the cara of the band in a tambor liso without drive. Unonce the emptys are empacados, the tyre gira on the surface instead of agarrarla, and the truck queda atascado — a retraso costly in any site of work. The designs of band autolimpiable usan áreas of empty widers with ángulos of incline specific that allow that the material empacado is expulsado to the entrar the bloque of band to the contact patch and deform under load. The blocks have form tal that the compressure during the contact with the ground force the mud and the debris towards aoutside since the centros of surcos, and the expansion to the salir the bloque of the contact patch open the emptys newmente for aceptar material new.
The design of open shoulder of the HS68 and the geometry aggressive of emptys of the both incorporan principios autolimpiables. The four grooves of desacople of the HS68 actúan like channels primarios of axlection that evacuate material since the centro of the band towards aoutside. The grooves widers and deep of the HS84 with features of axlection of stones provide both capacity autolimpiable in surfaces soft like protection against puncture by stones in surfaces of hard aggregate. Para operations that find both mud like rock (común in construction general), the design of emptys of doble propósito of the HS84 aborda both challenges simultáneamente.
The tyres in service all terrain and construction face more opportunities of damage by kilometre that any other application. A program disciplinado of maintenance no prevents all the damage — any loss of tyres is a cost inevitable of operar in environments hostiles — but reduces dramáticamente the tasa of failures prevenibles and extends the service life promedio of the tyres across the fleet.
The tyres all terrain must be inspected daily, no semanalmente. Before each turno, the driver or technical of tyres must caminar around the vehicle and revisar visualmente each tyre in busca of objetos incrustados (stones, metal, timber), cuts or protuberancias in the sidewall, loss of chunks of band and any signo of loss of aire. After each turno or each trip a a site of work, a drynd inspection detecta damage ocurridos during the period of work. Enfóquese in grooves of the band — sondee with a tool for tyres for remove any stone alojada in surcos, particularly in ribs centrales where se start the puncture by stones. Detectar a clavo or stone incrustada temprano, before that se abra step to the belt package, is the difference between a repair simple with tapón and a casing descartado.
The operations all terrain imponen estrés único in the management of the inflation. The freight heavys transportadas in surfaces uneven demand pressure of inflation maximum for withstand the freight and prevent the flexión of the sidewall. Al same tiempo, the surfaces uneven generate more heat that the pavement liso, and the frequent start-ups and stops in sites of work add cycles thermals that fluctúan the pressure. Check the pressures before the primer trip each day. Si the trucks operate in heat extremo (construction of verano in estados of the sur), the pressures of the afternoon can subir 10-15 PSI by above of the pressure in cold, which is normal and no must be released. Release tyres hot results in under-inflation unonce se cool. Maintain the pressure of inflation specifically in cold in tables of load/inflation for your tyre model and the freight actual of the axle.
The tyres all terrain sufren more damage repairables that the tyres of highway, doing that the procedures of repair are a factor significativo in the total cost of the tyre. The punctures smalls in the área of the band (agujeros of clavos, small penetrations of stones) can be repaired with a plug-patch combinationhe si the damage no has alcanzado the belts of steel. El damage in the sidewall never is repairable — any cut or puncture that exponga the cordones of the casing in the área of the sidewall requires the removal immediate of the tyre and its descarte. The cuts in the band that remueven larges chunks of rubber but no penetran to the belt package can continuar in service, but the tyre must move a a position less critical (trailer instead of drive) and be monitored of near. Maintain registros detailed of repair for each tyre; a casing with demasiadas repaires can no be apto for retreading even si the depth of the band is adecuada.
All-terrain service is harder on casings than highway service, but well-maintained all-terrain tyres can still produces retreadable casings. The key is maintaining proper inflation (which prevents the internal-heat damage that kills casings), avoiding sidewall impact damage, and pulling tyres at the correct tread depth before that the casing is exputhis a heat and wear excesivos. El retread program Hanksugi usa tests no destructivas for evaluate casings of service all terrain, and the inspectores experimentados can identify the patterns of damage internal specific of the use all terrain. The casings that pass the inspection can retreaded with patterns of band of mixed service adaptados to the application of drynd life prevista.
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Línea complete of drive tyres: models of closed shoulder, open shoulder and mixed service for each application of axle of drive.
Questions common on tyres for truck all terrain, tyres for construction and choice of tyres of mixed service.
A tyre for truck of mixed service is designed for vehicles that dividen its time between sealed highways and sites of work unsealed. A difference of the tyres of highway that prioritise the efficiency of fuel, the tyres of mixed service usan compounds resistant to cut and astillado that supporting rocks sharp, gravel and debris. Accountn with tread more thanep with emptys widers for self-cleaning in mud, features of axlection of stones for prevent the puncture by stones in the belt package, and sidewalls reinforced for resistir punctures and damage by impact of hazards all terrain.
The damage by cut and astillado occurs when objetos sharp in the surface of the road arrancan pedazos of rubber of the tread. The rock triturada, the concrete roto, the debris of steel and the aggregate afilado in sites of construction are the main culpables. The compounds standard of tyres of highway se fracturan and pierden chunks of rubber of the band. The compounds of mixed service like the of the Hanksugi HS84 usan higher contenido of natural rubber that allows that the band se flexione around objetos sharp instead of fracture, extending significativamente the service life of the band in environments all terrain.
Yes, the tyres all terrain of mixed service are designed for escenarios of doble use. Should recorrer highways públicas for reaching the sites of work. However, have higher resistance to the tread that the tyres of highway, which increases fuel consumption in sealed roads. The compensation vale the pena when more thanl 20% of kilometres involucran unsealed surfaces or uneven. Si less thanl 20% is outside highway, a tyre regional like the HS68 can offer better total cost due to the lower resistance to the tread in highway.
The puncture by stones occurs when small stones se incrustan in grooves of the band and are empujadas more thanepmente with each revolution up to penetrar through the band towards the belts of steel. This creates a road for the moisture that causa corrosion and separation of the belt — a failure structural grave that can causar reventones. The features of axlection of stones in tyres of mixed service avoidsn that the stones se asienten it suficientemente deep for reaching the belts. The inspection regular and removal of stones alojadas also is a maintenance preventivo important.
The service life of the tyres all terrain varies more that any other application. A tyre of mixed service in roads of gravel well mantenidos can offer between 130.000 and 190,000 km. The same tyre in a quarry of rock with aggregate afilado could durar between 60.000 and 100,000 km. The factors clave include the sharpness of the aggregate of surface, it pronounced of slopes, the frequency of giros and the proportion of kilometres of highway a outside highway. The management suitable of the inflation and the removal regular of stones have a impact higher in the service life of the tyre in service all terrain that in any other application.
The features of protection of sidewalls include rubber of sidewall more grueso, ribs of sidewall that desroadn impacts of rocks, perfiles more wide between cejas that reduces the área expuesta of the sidewall, and construction of ceja reinforced for surfaces uneven. The Hanksugi HS76 includes protection of sidewalls integrada for use in construction and mixed service. Maintain the pressure of inflation suitable is igualmente important — a tyre subinflada has a sidewall more flexible that is more vulnerable a punctures and damage by impact.