Mercedes-Benz has premiered a new heavy-duty construction series: Arocs
released the new Mercedes-Benz Arocs S tandem dumper
shortly after M-B debuted the prototypes. In cooperation with Mercedes-Benz and using original plans, Herpa has created 1/87 models of the various Arocs. Herpa currently catalogs 11 Arocs, from semi tractors to four-axle rigid units.
The all-new Arocs is Mercedes-Benz Trucks’ third heavy-duty special vehicle. The first was the Actros for long-haulage operations, followed by the Antos for heavy-duty distribution transportation, and now the Arocs for the heavy-duty construction segment.
Arocs is a modular system. A vehicle can be customized with a variety of fuel tanks, a new, unique suspension and frame design, wheel bases and axle configurations, four engines, and seven cab design with 14 variants to optimism an owner's requirements. Arocs are designed to be construction machines in the 18 - 44-ton class. Semi tractors, dump trucks and cement trucks are the main variants: Loader and Grounder.
The Arocs Loader has made consistent use of every possibility to reduce its own kerb weight. The result provides payload optimised 4x2 semitrailer tractor units which are among the lightest vehicles in the construction sector, as well as 8x4/4 cement mixers with a 32 t maximum permissible weight. Thanks to their particularly low kerb weight of a maximum of 9250 kg, these vehicles are able to supply 8 m3 of ready-mixed concrete on every trip.
The Arocs Grounder is designed for operating in extremely difficult conditions, such as in quarries or on building sites. Thanks to a host of technical measures, such as a longitudinal member thickness of nine millimetres, it is extremely robust and also features particularly high levels of stability and a high load carrying capacity.**
The Euro VI engine power ranges through 16 power output levels from 175 kW (238 hp) to 460 kW (625 hp) including the brand new OM 473 in-line six cylinder engine, some with turbo-compound technology. This power is transmitted through Mercedes' PowerShift 3 automated transmission. It boasts the first electrohydraulic power steering system in a commercial vehicle.
M-B cooperated with Herpa to create these models from original plans. According to Herpa;
For over 110 years, Mercedes-Benz has been manufacturing construction vehicles and has now repositioned its range. The Arocs is the successor of both the Actros and Axor, and was designed especially for construction vehicles. The Arocs’ most important features are its hightorque, heavy-duty drive configurations and its standard Euro 6 engines. Based on original plans and in cooperation with the developers of Mercedes-Benz Herpa has realized the Arocs series in the 1/87 scale as well. Besides the new cabs, the Herpa designers have also come up with a new, authentic chassis in over three months of work, which has been combined with a Meiller dumper.
Meiller of Munich was founded in 1850; a family company, Meiller produces innovative tipper bodies and tipping trailers, the worldwide proven MEILLER hydraulic systems, and high-quality lift doors.
Three-way tipper type D316 and type D321 for 3-axle chassis with a technically permissible g.v.w. of 26 t to 33 t Standard equipment.
The type D316 for 3-axle chassis with a permissible gross vehicle weight of 26 t proves its worth particularly in heavy construction usage. High-quality wear-resistant steel grades for body and sides, a loading volume of 9.3 to 12.8 m3 and an automatic tailgate lock make it a reliable partner. As a truck/trailer combination with Bordmatic and
a MEILLER center-axle trailer it is an economic transport solution. The tipper type D321 was designed for 3-axle chassis that are used offroad or in export markets with a technically permissible gross vehicle weight of 33 t. To this end the tipper features a larger loading volume with appropriately more powerful hydraulics and subframe.***
All of that information may be unnecessary for this review but it was fun looking it up!
Mercedes-Benz Arocs S tandem dumper
Herpa securely packs this almost fully assembled model set in a form-fitted tray. The tray is held inside a red Herpa carton with a cellophane display window, and opens via tabs at each end. The tray has slots for optional parts, and slots your fingers to easily remove the tray from the box. This arraignment is surprisingly durable — past shipping boxes have occasionally been partially crushed in transit, and although a model box was mashed, the model was not damaged. Very nice!
I found no flaws in the molding or assembly. The sharply molded exterior features fine recessed lines for doors and hoods, panels and the grille. Door handles are flush and are the tabs that hold the cab interior in the cab shell.
The cab and tipper superstructure set upon a highly detailed three-axle chassis. The rear suspension pivots up and down. The windshield and windows are free of distortion and you can see the nice interior. It is worth popping the cab off to see, but I did not. I did tip the cab forward but there was no engine underneath. The cab is the "ClassicSpace" S-cab:
The S-cab is 2300 mm wide, available with an engine tunnel height of 170 mm or 320 mm and is characterised by the practical, comfortable workspace as well as by the staircase-like entrance, for example, plus a very good overview and its high suitability for operating profiles.****
The Meiller tipping bed appears to be a D316 or D321 type.
Herpa created a detailed model of the chassis: gearbox, frame, fuel tanks, air tanks, axles, springs and suspension.
Individual clear lenses simulate the headlights. But the brake lights are not even simulated with paint.
Inside of the cab is detail worth popping the cab off for: bucket seats, the steering wheel, console, stick shift, and dashboard detailing.
The windshield wipers are part of the combing around the windshield. In the front of the cab doors are slots to mount the optional side view mirrors and corner mirrors. Although the mirrors are delicate, it is a simple process.
Herpa engineered the soft plastic tires to slip over the rims. They display good tread detail.
The business ends are Meiller tipper beds that appear to be a D316 or D321 type. Pretty clever design and engineering went in to making these little tippers tip! Thanks to an ingenious hemispherical receptacle for an axle, not only can it be raised vertically, it can also be tilted longitudinally! The tailgate and sides open. Two hydraulic rams are provided: one for vertical extension, a shorter one for side dumping. These telescopic hydraulic rams do not telescope, they are molded as a single extended part. One end can be attached to the cylinder and the other to the front of the tipper.
These features become evident, although it took a few minutes to figure out what was meant to move without breaking; I think Herpa should include an explanation diagram for the movable components.
It has basic underframe detail. Operating features include the dump bed that raises and tilts just like the truck dump bed, and extendable landing gear. The trailer also lacks brake lamp lenses.
Livery and Finish
The model components are molded in color: orange and gray. The Mercedes-Benz emblem and Arocs herald is chromed, not a decal. Herpa does not use decals. The surface of the cab is glass-smooth.
This new Mercedes-Benz Arocs dump truck and dump trailer will make an impressive presence on your layout or diorama. It has very good plastic detail and a great finish. It has a detailed underbody, lenses for headlights, a detailed interior which is visible through the clear windows, and the working tipper. However, there are no lenses for the brake lights.
Model railroaders of the modern era and collectors of modern construction vehicles will enjoy having this truck on their layouts. Recommended.
Please remember, when contacting retailers or manufacturers, to mention that you saw their products highlighted here - on RailRoadModeling
* Daimler AG. The new Mercedes-Benz Arocs.
http://www.daimler.com. January 29, 2013.
** "Mercedes-Benz Arocs." Strong, sturdy and efficient: Mercedes-Benz Arocs – The new force in construction.
Daimler AG, 27 Nov. 2012. Web. 10 July 2014.
*** F.X.MEILLER Fahrzeug- und Maschinenfabrik-GmbH & Co KG. Three-way tipper type D316 and type D321
. PDF. [http://www.meiller.com/en/products/construction-logistics/three-way-tippers.html]. 2014.
**** "ClassicSpace S-cab." Mercedes-Benz Trucks - the Arocs. The New Force in Construction.
Mercedes-Benz Trucks - Arocs, n.d. Web. 10 July 2014. .