Volvo Articulated Haulers A25C 4x4, A25C, A25C Container, A25C Light material, A30c Courtesy of Machine.Market They work day after day Volvo's articulated haulers are at work all over the world, round the clock, in increasingly diverse applications. In many cases, they have been chosen for the task because other methods have been tried and simply haven’t worked. Harsh climate, difficult terrain, high demands on availability – these are factors that have influenced the choice of Volvo articulated haulers. Construction of high-speed trains in Europe, work under ground in South America and haulage at an open-cast mine in Africa – these are just three examples from a steadily growing number of applications. Borderless Europe needs slippery when wet, but the haulers transport networks kept production going regardless of The need for better and faster trans- conditions. port is becoming increasingly urgent Sweaty in Zimbabwe in Europe, and enormous resources are being invested in expansion of Temperatures over 104°F and slopes the infrastructure. with a 12% gradient, 20 hours a day, A huge project has been completed five days a week – this is the situa- in southern Belgium to prepare the tion faced by four Volvo A25Cs in way for the high-speed TGV-trains the Sanyati Copper Mine in which link a growing number of Zimbabwe. European capitals. The articulated haulers are loaded No less than 3.3 million cubic yards with shot rock, which is hauled of surplus soil had to be excavated 0.5 mile to the concentration plant. and moved to the dumping site, an The haul run is downhill, with a abandoned mine. The haul distance gradient of up to 12%. The retarder was about 2.2 miles, and from the comes in very handy here. start it was planned that the job To minimize wear on the brakes, would be done by conventional the operators are encouraged to use trucks. But a combination of muddy, the retarder as much as possible. clayey and slippery soil and deman- And with experienced operators ding conditions on both the loading this works very well, so well that and dumping sites made this impos- the brakes virtually never need to sible. The trucks simply couldn’t get be used. through, nor could they dump at the right place The solution was to Under ground in Chile use 65 Volvo articulated haulers, Three Volvo A25Cs work round the working double shifts or more to clock in a 1.2 mile long haulage Despite this very tough schedule, get the job done. The results were tunnel in a copper mine in Chile. reliability has been 100 percent, very good. The contractors were all They run continuously from the largely thanks to the fact that main- very pleased with their haulers, and tunnel face out to the portal, where tenance and inspections have been even though they were operated for a couple of Volvo wheel loaders planned and carried out with great as much as 320 hours a month, take over. Thanks to their low-emis- thoroughness. Easy daily checkup reliability was very high. Their out- sion engines, the articulated haulers routines for the operator is another standing off-road mobility was also can operate continuously down in factor that keeps reliability high. a very valuable asset. The haul the mine passageway, without jeop- surface is muddy clay, extremely ardizing the environment for those who work there. 2 Courtesy of Machine.Market 3 Courtesy of Machine.Market The articulated hauler method When Volvo introduced the articulated hauler in the 1960’s it was not Right partner just another machine. Soon the market realized that the articulated The articulated hauler has a very hauler introduced a new method in haulage. wide range of applications. It can handle haul distances from 0.1 mile The use of Volvo articulated haulers ■ Dumps over the edge – can up to several miles, sometimes even has led to a whole new way to plan usually manage without help longer, with ease and efficiency. a work-site and carry out haulage. It on the dumping site. On or off-road, level ground or is by truly exploiting all the features Today the two basic models of steep slopes, the versatility of the of the articulated hauler that the Volvo articulated haulers, A25C and articulated hauler is great and work can be made more efficient: A30C, fulfills their mission in a lot always makes it worth considering ■ All-terrain – able to choose the of different countries and work- as an alternative. Choosing the right shortest route, even with a full sites. Which model that is used is equipment to use in combination load, and able to work under basically an economic question. with the articulated hauler, and virtually all conditions. Factors that influence the choice are never mixing different hauler sizes in the same fleet, are other impor- ■ Easy to maneuver – comes quick- the relation between payload capac- tant considerations. ly into position for loading and ity and loading capacity, haulage dis- unloading. tances and the demand for flexible use of the articulated hauler. 4 Courtesy of Machine.Market Loading options A hydraulic excavator is the most common, and in most cases, the most efficient loading option. Excavator and hauler are combined so that the body is filled with 3-5 buckets. A wheel loader may be the most efficient choice for loading loose materials. It moves rapidly and can load a hauler quickly with its big bucket. Conveyor belts, silos and other sta- tionary equipment are also excellent choices for loading an articulated hauler. Because the hauler is so easy to maneuver, the operator can quickly get into the right position and just as easily get out with a full load. Hauling with load Unloading This is perhaps the strongest side Volvo articulated haulers can dump of the articulated hauler. Volvo their loads at exactly the right place. articulated haulers can get to where In most cases, they need no assis- they’re going under most condi- tance from crawler dozers or other tions. The need to build and main- machines. tain haul roads is minimal. Its off-road characteristics and big Articulated steering and the frame wheels with low ground pressure, joint are the keys to this off-road enable the articulated hauler to get mobility. They are what enable the into position quickly and safely, tractor and trailer units to move without the risk of getting stuck. independently of each other and Once in position, the machine tips eliminate the stresses on the frame. quickly, with a body angle of up to They also make the machine very 70 degrees. The hydraulic system is easy to operate. double-acting, so the body can be Six-wheel drive, diff-locks on all lowered even if the hauler is on an axles, and automatic transmission uphill grade. Thanks to the terrain are Volvo features that give the bogie, the high tipping joint, and the body protects the cab and the articulated haulers unequalled off- the chute that guides the material operator, a wire-operated tailgate road mobility. The front axle sus- out of the body, it is easy to dump reduces the risk of spillage during pension and the Volvo bogie cush- over an edge, directly down into a haulage. Heating of the bottom of ion both the load and the operator pit, a hopper or down a slope. the body greatly reduces the risk for a safe and comfortable ride. that the load will stick under certain operating conditions. The exhaust The machine can go almost any- Modification of the body gases are used for body heating, where, and is fast and efficient on Certain types of loads or loading which means no extra energy is construction roads as well. methods require modification of consumed. the body on the articulated hauler. A spill guard at the front edge of 5 Courtesy of Machine.Market Standard solution for specialized applications The articulated hauler is basically constructed for hauling of earth and other masses. During the years Volvo’s articulated haulers has proven their availability, flexibility and capacity which has resulted in interest in using the articulated haulers in other applications. On this basis, Volvo has developed a range of slightly modified articulated haulers for different purposes. Volvo A25C 4x4 many mines and tunnels. Equipped The four-wheeled Volvo A25C is with turnaround wheels, it can turn the perfect alternative for stationary in only 31 ft which makes it out- jobs and underground. In its stan- standing in cramped work-sites. dard version, it is used in a great 6 Courtesy of Machine.Market Volvo A25C Container The Volvo A25C can be equipped to carry a container, which makes it highly effective in waste handling operations. With its light ground pressure, off-road mobility and maneuverability, it can negotiate on the landfill and dump the garbage at the right place. These features have made the Volvo A25C Container interesting in other applications where the needs are similar. Volvo A25C Light material A Volvo A25C can be equipped with a larger body than usual. This enables the articulated hauler to carry loads up to 31.4 yd3 as long as the material transported has a density of maximum 1.5 lb/yd3. Volvo A25C Light material is, for example, ideal for transporting coal and other material with low weight but large volume. 7 Courtesy of Machine.Market Operator in the center – literally The operator is without a doubt one mid-point of the machine, where Volvo articulated haulers are emi- of the most important components the cab’s movements are minimal.