Product information at 30/10/2026, 12:47
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428.61 €incl. VAT | incl. Shipping Cost
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Would you like to experience an extraordinary steam locomotive on your H0 model railroad layout—one whose real-life counterpart was still hauling heavy coal trains well into the 21st century? The Roco 7110079 Steam Locomotive 33-503 from the Kreka coal mine in Bosnia and Herzegovina combines fascinating railway history with modern digital and sound technology. This striking locomotive is based on the legendary Class 52 of the former Deutsche Reichsbahn and captivates with its characteristic disc-shaped leading wheel, finely detailed metal spoked wheels, and precision-cast metal driving and coupling rods. Thanks to the factory-installed PluX16 sound decoder, you can also experience the extraordinary sound of steam locomotive operation from Eras IV–VI on your model railroad layout.
The 33-503 steam locomotive is one of the most notable examples of the former German Class 52, which continued to be used in various European countries after World War II. Originally designed as robust freight steam locomotives for heavy-haul duties, these machines proved their worth over many decades. In Bosnia and Herzegovina, some locomotives of this class enjoyed an exceptionally long service life. At the Kreka coal mine in the Tuzla Canton, they were used to haul heavy coal trains. The Roco model captures this unique industrial rail operation and evokes a time when classic steam locomotives continued to perform indispensable transport tasks long after the actual end of the steam locomotive era.
A distinctive feature of the historic prototype is its exceptionally long service history. As late as 2024, the Kreka coal mine was still among the last operators of steam locomotives in Bosnia and Herzegovina. At that time, five locomotives of the former Class 52 were in service, transporting lignite from the mine to the Tuzla Power Plant. This plant is one of the most important coal-fired power plants in the region. The Kreka mine has extensive lignite deposits and has long played a vital role in the region’s energy supply. The Roco 33-503 brings this extraordinary industrial transport to life on a 1:87 scale and offers a fascinating prototype for model railroaders who want to recreate unusual railroad scenes.
The Roco 7110079 impresses with its distinctive model design featuring numerous interesting details. Particularly striking is the disc-shaped leading wheel, which visually distinguishes this version of the steam locomotive from other variants of the Class 52 series. Added to this are finely crafted metal spoked wheels as well as drive and coupling rods made of precision-cast metal. These high-quality components give the model an impressive undercarriage and underscore the powerful appearance of the five-car coupled freight locomotive. The movement of the driving rods and coupling rods is particularly evident when a heavy coal train is starting off slowly. This makes the 33-503 an exceptional eye-catcher both in operation and as a collector’s model.
Technically, the Roco 33-503 steam locomotive is also designed for demanding model railroad operation. Two axles of the tender are powered, while the drive power is additionally transmitted via a cardan shaft to all five driven axles of the locomotive. In total, the model thus has seven driven axles. A flywheel ensures smooth running, while two axles equipped with traction tires improve tractive effort. This design provides excellent conditions for use in front of longer coal and freight trains. With a length over buffers of 265 mm and a minimum curve radius of 358 mm, the locomotive can be used on appropriately designed H0 track layouts.
A special highlight of the Roco 7110079 is its factory-integrated digital and sound equipment. The steam locomotive is designed for digital DC operation and features a built-in PluX16 digital decoder with sound. This allows you to control the locomotive via a compatible digital command station and accompany its operation with authentic steam locomotive sound effects. The sound system creates an impressive atmosphere, especially when leaving a coal-loading yard, pulling a heavy freight train, or during slow shunting maneuvers. Since the digital decoder is already installed, no additional decoder retrofit is required for the intended digital operation and sound features.
For prototypical lighting, the Roco 33-503 features a direction-dependent two-light headlight with LEDs. The lighting complements the steam locomotive’s distinctive front design and creates an authentic effect while the locomotive is in motion. In addition, a Z21 cab is available for this model. When used with a compatible Z21 controller, it enables a particularly realistic operation of the locomotive. Together with the integrated sound functions, this creates a varied driving experience that impressively highlights the unique character of historic steam locomotive operations in Bosnia’s coal transport industry.
The Roco 7110079 is particularly well-suited for H0 model railroads focused on industrial and freight transport from Eras IV through VI. True to the prototype, the steam locomotive can be combined with open freight cars for transporting lignite. A longer consist of coal cars vividly conveys the daily operations between the Kreka coal mine and the Tuzla power plant. An industrial rail yard, a coal-loading facility, or a large freight yard also make for suitable backdrops. For coupling with freight cars, the model features a NEM 362 coupling socket on the tender with close-coupling kinematics. A close-coupling mechanism is also provided between the locomotive and the tender. This allows you to create impressive train formations for an extraordinary steam locomotive operation.
The Roco 7110079 combines the history of a legendary freight steam locomotive with an unusual area of operation and modern sound technology. In particular, the documented use of this steam locomotive in Bosnian coal transport as late as 2024 lends the prototype outstanding significance. The disc-type leading wheel, the finely detailed metal wheels, and the intricately crafted drive and coupling rods make the 33-503 an attractive addition for discerning collectors. The powerful drive system on seven axles and the factory-installed sound decoder further ensure a fascinating driving experience. Enrich your H0 steam locomotive collection with the Roco 33-503 from the Kreka Coal Mine in the DC Sound version and bring an impressive piece of living European steam locomotive history to your model railroad layout!
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