Mercedes-Benz Trucks: Arocs, Atego, Actros SLT and Arocs SLT – tailor-made trucks for the construction sector

Jan 21, 2016
  • Arocs: one for all among the heavy-duty construction vehicles
  • New versions increase selection of cabs and axles
  • Atego: versatile dump truck for the construction industry and ancillary trades
  • Arocs SLT and Actros SLT: dynamic heavy-duty tractor/trailer combinations
The A Team from Mercedes-Benz is the number one on the site: with the Arocs, Atego and the heavy-duty tractor units Actros and Arocs SLT the range of construction vehicles from Mercedes-Benz Trucks comprises a complete offering of construction vehicles for the construction industry and ancillary trades, for predominant use on- and off-road and as a tractor unit. Not only do they all have the star in common, they also share the hallmark characteristics power, robustness and efficiency. What's more, there is specialisation: the made-to-measure construction truck is a matter of course at Mercedes-Benz.
Arocs: one for all among the heavy-duty construction vehicles
It is the out-and-out pro for construction transport: the Arocs makes Mercedes-Benz the only manufacturer to offer a stand-alone model series with heavy-duty trucks specially for the construction industry. Three years ago the Arocs celebrated its world premiere at Bauma, and it is now available with a full range.
The Arocs is offered as a two-, three- and four-axle model. There are chassis and tractor units. The drive configurations offered range from the 4x2 two-axle vehicle to the 8x8/4, a four-axle truck with all-wheel drive and two steered front axles. Special variants are included, such as four-axle versions with three rear axles or four-axle pickups with one driven and one steered rear axle.
Ready-for-use specialists make the choice easier. The Arocs Loader is systematically configured for a low kerb weight and high payload as a two-axle tractor unit or as a concrete mixer chassis. The Arocs Grounder meanwhile is an extremely robust specialist for particularly tough appli-cations. Whichever truck is required for an individual application, the Arocs is uncompromisingly tailored to it. For example with different frames for predominant on- and off-road use or with air or steel suspension at the rear axle.
Engine and transmission: choice of 16 output categories
There is a huge range of engines to match. State-of-the-art six-cylinders with 7.7 l, 10.7 l, 12.8 l and 15.6 l displacement cover all requirements. There are 16 output categories in all to choose from. The tightly graduated range spans 175 kW (238 hp) to 460 kW (625 hp) and 1000 to 3000 Nm.
As standard, fully automated Mercedes PowerShift 3 model series trans-missions take care of power transmission with eight, twelve or on request 16 gears. A direct shift mechanism from first to reverse gear facilitates rapid manoeuvring. The drive programs "off-road" or "power" with several drive modes respectively adapt to individual vehicle operation. Additional functions support the driver, for example the engageable rocking mode for traction problems in off-road terrain. Manual gearshifts are also available optionally. Anyone having to move off particularly sensitively and wear-free with high weights can choose the turbo-retarder clutch (TRC). This com-bines a hydraulic start-up clutch and retarder in a single component.
Three all-wheel drive systems for the most diverse of operating conditions
Vigorous engines and perfectly matched Mercedes PowerShift 3 trans-missions are the basis for high traction even away from the road. For off-road use Mercedes-Benz offers different all-wheel drive variants. If the payload and fuel consumption are to the fore, the engageable all-wheel drive is the right choice. If maximum traction is called for, the solution is permanent all-wheel drive plus a low-range ratio.
The third variant, the "Hydraulic Auxiliary Drive" (HAD) has caused a sen-sation in the sector. With engageable wheel hub motors at the front axle it covers road-oriented use with occasionally increased traction requirements. With HAD the Arocs reveals itself to be a true all-rounder. The driver simply engages HAD by pressing a button. The necessary slip-sensitive power transmission is then efficiently and steplessly controlled.
The advantages of the hydraulic drive are the comparatively low added weight, benefits in terms of fuel consumption and emissions, and great versatility in the configuration of the vehicle. In the case of Mercedes-Benz, these qualities are complemented by freedom from maintenance, low fuel consumption with activated hydrostatic drive and, above all, the combin-ation with the Mercedes PowerShift transmission. The Arocs HAD sets benchmarks in its segment: it is powerful, lighter than an all-wheel-drive model, easy to operate, maintenance-free and has a long service life. It lowers fuel consumption and consequently protects the environment as the result of low emissions.
Choice of 22 cab variants available
Equally as extensive as the powertrain engineering is the choice of cabs, as there are seven cabs in no less than 22 versions to choose from for every special application. There are slim cabs with a width of 2.3 m or spacious ones with a width of 2.5 m, short, medium-long and long cabs plus different overall heights and heights for the engine tunnel. In short: the selection ranges from S through M to L and from ClassicSpace to BigSpace.
New versions increase selection of cabs and axles
The Arocs is driving into spring 2016 with additional variants. Four-axle chassis with an engine tunnel of 320 mm instead of 170 mm are new. The correspondingly lowered cab offers the advantage of a lower overall height for dump trucks. It is generally easier to climb in due to a smaller distance between the steps. Also new: all Arocs with a cab width of 2500 mm receive an interior in friendly light almond beige. This is linked to the option of the Home and Style lines analogous to the Actros long-distance truck. Whilst the Home line is characterised by a wood-look interior decor, the Style line is distinguished by chrome for the exterior and interior. It is also given a display with a 12.7 inch format.
Also new is a further extended offering of drive axles: the three-axle versions with two driven rear axles are now all also available both with a permissible axle load of 2x10 t (as 26 t) and 2x13 t (as 33 t) from 310 kW (421 hp). In both cases these are hypoid axles (RT 440), with which the Arocs is equipped as standard throughout and which can move a gross combination weight up to 80 t. Per axle tandem the reduction of weight of the hypoid compared with the planetary hub reduction axles is approx.-imately 175 kg. The advantage when it comes to fuel consumption is up to five percent. The indestructible planetary hub reduction axles have their place as an option for particularly tough applications.
Atego: versatile dump truck for the construction industry and ancillary trades
If a medium-duty dump truck is called for in the construction industry and ancillary trades, the first choice is the Mercedes-Benz Atego. The two-axle model arrives for work with a perm. GVW of 7.5 to 16 t and impresses above all with its quality, reliability and longevity.
The customers also have a large selection where the Atego for construction is concerned. In the range there are four-and six-cylinder engines with a displacement of 5.1 l and 7.7 l. The output span ranges from 115 kW (156 hp) to 220 kW (299 hp), the spectrum of the maximum torque from 650 to 1200 Nm. The fully automated Mercedes PowerShift transmission with six, eight or twelve gears with the drive programs "off-road" and "power" have different driving modes. Available to choose from in the range are manually operated transmissions with six or nine gears. Buyers can also select from steel, steel/air or air suspension on all axles.
Depending on the area of application the Atego is available as a 4x2, for increased traction with engageable all-wheel drive plus for challenging off-road operation also with permanent all-wheel drive. There are four cab versions to choose from. The Atego's S-cab is offered with a width of 2.3 m as the ClassicSpace and extended ClassicSpace. Alongside this there is also a ClassicSpace L-cab and a high-roof variant as the BigSpace, with an engine tunnel respectively.
Actros SLT and Arocs SLT: dynamic heavy-duty tractor/trailer combinations
An overall towing weight up to 250 t, three, four and with a dock axle as many as five axles, two driven axles or all-wheel drive, an engine as strong as an ox with an output of up to 460 kW (625 hp) and torque of 3000 Nm, 16 finely graduated gears of the Mercedes PowerShift transmission – the exciting Mercedes-Benz Actros SLT and Arocs SLT heavy-duty tractor/trailer combinations impress with their spectacular data.
At least as important as these data is the tailor-made concept with a turbo-retarder clutch (TRC) as a combination of hydraulic start-off clutch and retarder in one common component. The TRC facilitates sensitive moving off and manoeuvring even at the lowest of speeds and as a primary retarder develops considerable braking performance of 350 kW (476 hp) – important when driving on downhill gradients. Together with the High Performance Engine Brake, developing up to 475 kW (646 hp), the TRC ensures the highest safety levels and treats the service brakes with sufficient care, even with maximum tonnage on a downhill gradient. To ease the strain on the transmission, the sum total power of the two high-performance brakes on the heavy-haulage vehicle is limited to a system brake power of 720 kW (979 hp).
The radiator, hydraulic system, the fuel tank with a capacity of 900 l, compressed-air chamber and further components are housed in the elegantly trimmed rear cooling tower.
The heavy-duty tractor/trailer combination's diverse model variants are distributed across the two model series Actros SLT and Arocs SLT. The air-suspended Actros SLT is available with the spacious GigaSpace and BigSpace cabs measuring 2.5 metres in width. The steel-sprung Arocs SLT based on the particularly robust Arocs Grounder is also available with the BigSpace cab as well as the StreamSpace cab measuring 2.3 metres in width.
As a high-tech heavy-duty tractor/trailer combination the SLT is configured for an overall towing weight of up to 250 t. For the construction industry the focus is on it as a semi-heavy-duty tractor/trailer combination for trans-porting heavy construction machinery. In this case the additional radiator system and optionally also the TRC can be dispensed with. The permissible overall towing weight is up to 120 t and with restrictions up to 155 t.
The exhibition vehicles at Bauma in detail
On the stand in Hall B4 Mercedes-Benz Trucks is presenting six vehicles. One of the most spectacular vehicles being exhibited is the Mercedes-Benz Actros 4163 LS as a semi-heavy-duty tractor/trailer combination. The tractor unit bears the distinctive look of the Actros SLT including the side panels behind the cab. The tanks and compressed-air chamber are concealed behind them. Via a trailer coupling the four-axle model is fitted with a twin-tyred and air-suspended dock axle and can thus be used as a five-axle tractor unit as required. The Actros Semi-SLT is approved for an overall towing weight of 155 t. For sensitive manoeuvring it boasts a turbo-retarder clutch. The impressive GigaSpace cab has high-end equipment. In addition to this the Actros draws attention to itself with a roof lamp support with four work lamps and chrome louvres for the radiator grille. The Actros 4163 LS moves heavy loads with its output of 460 kW (625 hp) and maximum torque of 3000 Nm from the 15.6 l displacement of the OM 473. The particularly narrowly spaced Mercedes PowerShift G 280-16 transmission with 16 forward gears transmits the power.
The Arocs 3240 B 8x4/4 is totally different in nature. The four-axle concrete mixer from the weight-optimised Loader model series has two driven twin-tyred hypoid axles plus aluminium wheels and carries a ClassicSpace M-cab with a width of 2.3 m. Its design features the new engine tunnel height of 320 mm, making it easy to climb in. The vehicle is fitted with a concrete mixer from Liebherr with a 9.0 m³ drum, stepless adjustment of the drum's rotational speed and Constant Speed Drive – the drum rotates irrespective of the engine rpm. The Arocs weighs only 9.5 t including the fuel, driver and vehicle tool kit. Added to this is the 3.48 t concrete mixer. The four-axle model is appropriately engined with its output of 290 kW (394 hp) and the 1900 Nm of the Mercedes-Benz OM 470 from a displacement of 10.7 l.
With the Arocs 3243 K 8x4/4 Mercedes-Benz is presenting a dump truck for challenging applications. This is clear from the two driven planetary hub reduction rear axles and disc brakes with full protection. The four-axle model with its wheelbase of just 4250 mm is as light as it is agile and carries the ClassicSpace M-cab with the new engine tunnel height of 320 mm. It is easy to climb in, and the vehicle height is low. With the 315 kW (428 hp) output and 2100 Nm torque of the OM 470 with a displacement of 10.7 l the engine is both light and powerful. The body is a three-way tipper from Dautel, 5600 mm long with a capacity of 14.2 m³. Its hard-wearing floor consists of Hardox, the side walls of aluminium.
The Arocs 2542 L exhibited benefits from the Hydraulic Auxiliary Drive (HAD) as a highly efficient traction aid for the front axle. The air-suspended three-axle vehicle with the axle configuration 6x2 drives a roll-off tipper from Palfinger via a power take-off on the engine. The cab is a StreamSpace cab with a width of 2.3 m and a 170 mm engine tunnel. It is equipped for occasional use in long-distance transport, which can be seen from its auxiliary heating, a refrigerator, table on the co-driver's side, retarder and leather steering wheel. Numerous assistance systems are also installed, including Active Brake Assist 3 plus Lane Keeping Assist and Proximity Control Assist. The heart of the drive system is the large-displacement Mercedes-Benz OM 471 with an output of 310 kW (421 hp) and torque of 2100 Nm.
The Arocs 3363 LS 6x4 is one of the most spectacular vehicles. The three-axle tractor unit is driven via the new hypoid tandem axle with 2x13 t perm. axle load and has an overall towing weight of 80 t. This makes it ideal for transporting heavy construction machinery on a low loader, for example. The tractor unit is lavishly engined in the form of the OM 473 with 15.6 l displacement, achieving an output of 460 kW (625 hp) and torque of 3000 Nm in its top guise. At 3300 mm the wheelbase is compact, in favour of manoeuvrability. The roomy BigSpace cab is equipped with the Style line. It includes chrome appliqué sections for the exterior and interior plus front fog lamps with LED daytime running lamps.
The Atego 1530 AK is born for use in municipalities and by landscape gardeners. It is driven by the compact OM 936 with an output of 220 kW (299 hp) and torque of 1200 Nm. The dump truck with a wheelbase of 3650 mm boasts engageable all-wheel drive and an extended S-cab with a centre seat. Features which deserve a special mention include the High Performance Engine Brake with its braking power of 300 kW. A three-way tipper from Meiller is mounted as a body (4000 x 2350 x 500 mm). The loading crane from Hiab with a lifting and articulated arm plus dual extension is hydraulically retractable from 4.0 to 7.6 m.
In the open-air grounds Mercedes-Benz is displaying three further highly specialised construction vehicles. The characteristic feature of the Arocs 4145 AK 8x8/4 Grounder is extreme resilience. The four-axle all-wheel drive dump truck is fitted with the twelve-gear Mercedes PowerShift 3 transmission plus turbo-retarder clutch. The engine output is 330 kW (449 hp) from the 12.8 l displacement of the Mercedes-Benz OM 471. The driver sits in a ClassicSpace M-cab. The equipment includes the Protection Pack with a side entrance and handrail on the roof plus a protective plate for the tank. The half-shell rear-end tipper box from Carnehl made of Hardox holds 16 m³.
A further Arocs model, the 2640 B 6x4 concrete mixer chassis, bears a concrete pump from Heidelberger Beton. The three-axle 6x4 chassis with a wheelbase of 3900 mm drives on particularly robust planetary hub reduc-tion axles with leaf suspension. Aluminium wheels lower the weight. The cab is the CompactSpace. At work beneath it is the light six-cylinder OM 470 with a displacement of 10.7 l and output of 290 kW (394 hp). The power is transferred by the particularly sensitive G 280-16 transmission with 16 gears.
Also exhibited in the open-air grounds is an Actros 3331 K 6x4 from the tried-and-tested model series for export markets. With two driven planetary hub reduction rear axles the three-axle model is highly resilient. Working beneath the cab is the familiar V6 OM 501 with an output of 230 kW (313 hp) and 1530 Nm from a displacement of 12.0 l. Its Euro II emissions level corresponds to the requirements of the target markets. The G 210-16 transmission is operated manually, as an option with hydraulic support. The body fitted is a rear-end tipper from Meiller with a capacity of 14 m³.
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz Actros, construction vehicle
Mercedes-Benz Arocsm, construction vehicle
Mercedes-Benz SLT, construction vehicle
Mercedes-Benz Actros Classic, construction vehicle
Mercedes-Benz SLT, construction vehicle
Mercedes-Benz SLT, construction vehicle
Mercedes-Benz Actros Classic, construction vehicle
Mercedes-Benz SLT, construction vehicle
Mercedes-Benz Actros Classic, construction vehicle
Mercedes-Benz Actros Classic, construction vehicle
Mercedes-Benz Atego, construction vehicle
Mercedes-Benz Atego, construction vehicle
Mercedes-Benz Atego, construction vehicle
Mercedes-Benz Atego, construction vehicle
Mercedes-Benz Atego, construction vehicle
Mercedes-Benz Atego, construction vehicle
The first two Mercedes-Benz Actros 1845 LS models with the latest-generation OM 471 engines are ready for the second round of the Fuel Duel.
The record dimensions of the Arocs 5051 with Palfinger crane are also obvious in the expanses of the football stadium of VfB Stuttgart.
Thanks to its compact dimensions, the Arocs 10x6/6 NLA with Palfinger loading crane weighing nearly 50 tonnes is able to get onto any construction site. Due to the steered fifth axle, the Arocs has a turning circle of just 22.60 metres.
Mercedes-Benz Trucks - Driving Experience Slovenia 2015: Mercedes-Benz Actros 1845; Mercedes-Benz Actros 1853; Efficiency; Latest Generation OM 471; Slovenia
Mercedes-Benz Arocs HAD, offroad
Mercedes-Benz Arocs HAD, offroad
Mercedes-Benz Arocs Tipper 8x8
Mercedes-Benz Arocs Tipper 6x6
Mercedes-Benz Arocs HAD Driving Experience 2015, customer testing
Mercedes-Benz Actros 4163 SLT
Mercedes-Benz Actros 4163 SLT
Mercedes-Benz Actros 4163 SLT
Mercedes-Benz Actros 4163 SLT
Mercedes-Benz Arocs 4145 SLT
Mercedes-Benz Arocs 4145 SLT
Mercedes-Benz Arocs 4145 SLT