One of the most important technological modernization phases in decades is currently underway in Russia’s railway industry. The country is preparing for a transition to a new generation of mainline electric locomotives equipped with asynchronous traction drives in response to the intensive development of Russian Railways’ Eastern Polygon and the swiftly increasing freight traffic. This is not just a replacement of antiquated equipment; it is a fundamental transformation in the manner in which heavy freight transportation will operate throughout Russia’s rail network.
Transmashholding announced its intention to execute a substantial undertaking within the framework of a public-private partnership in early May 2026. The primary objective is to modernize the locomotive fleet that operates throughout the Eastern Polygon, which encompasses the Baikal-Amur Mainline and critical segments of the Trans-Siberian Railway. The demand for freight continues to rise annually, and these routes now transport substantial quantities of coal, metals, containers, and basic materials.
The Reasons Why Older Electric Locomotives Are Insufficient
Electric locomotives, which were driven by commutator traction motors, served as the foundation of Russia’s freight locomotive fleet for decades. While these machines were extremely durable and dependable, they are no longer technologically compatible with the efficiency standards of the present day.
The main concern with commutator-based drives is their high maintenance requirements and mechanical complexity. Brushes, contact elements, and many wear-prone components are used in these types of motors. This leads to long outage periods and higher maintenance expenses in the Eastern Polygon’s demanding operational environment.
Furthermore, the energy efficiency that is necessary for modern freight operations is no longer provided by antiquated locomotives. This is particularly important for Russian Railways, as locomotives are frequently responsible for transporting extremely massive trains through challenging terrain, steep gradients, and severe climatic conditions.
The ongoing expansion of freight traffic necessitates technological solutions that are fundamentally distinct. This is the reason why the Russian rail industry is betting on asynchronous traction drives, which have already become the global standard for contemporary mainline locomotives.
What is the significance of asynchronous traction drives?
In comparison to conventional commutator systems, asynchronous electric motors are regarded as greatly more reliable, economical, and advanced. They have considerably fewer components that are susceptible to wear, are simpler to maintain, and are capable of managing intensive operating modes more effectively.
Industry estimates indicate that the introduction of asynchronous traction motors manufactured domestically can improve energy efficiency by approximately 15 to 20 percent. This results in sizable electricity reductions throughout the entire railway network for the railway industry.
Weight reduction is an additional major advantage. Locomotives are capable of transporting heavier cargo with greater efficiency when they use lighter traction equipment. The objective of new-generation locomotive initiatives is to decrease the number of sections by one without compromising traction performance. The resulting unused space in a train consist can be allocated to an additional freight wagon that is laden.
At first sight, the addition of an additional wagon may not appear to be a significant change. Nevertheless, this has a huge economic impact on the annual operations of thousands of freight trains. The carrying capacity is increased by each additional wagon without the necessity of additional locomotive personnel or new tracks.
Additionally, asynchronous systems offer increased regenerative braking performance, greater reliability, and smoother traction control in severe operating conditions.
The Main testing ground is the Eastern Polygon
The modernization of Russia’s locomotive fleet has been primarily driven by the Eastern Polygon. The Baikal-Amur Mainline and the Trans-Siberian Railway’s expansion necessitate not only improved infrastructure but also a new generation of locomotives that can accommodate the increasing weight of freight trains.
Numerous segments of the BAM railway travel exceptionally challenging terrain. Equipment that is extremely reliable and has a huge amount of traction power is necessary for long mountain climbs. Particularly when transporting large freight compositions, locomotives that are older often operate at their operational capacities.
It is expected that the situation will be greatly impacted by the new asynchronous electric locomotives. Trains weighing up to 7,100 tons are expected to be moved by future locomotives in a two-section configuration. This is an exceptionally high figure for the Russian railway sector.
It is expected that the Eastern Polygon’s extensive fleet replacement program will occur between 2029 and 2038. In practice, this implies that the largest freight railway corridor in Russia will progressively transition to next-generation locomotives over the next decade.
Russia is placing a bet on technologies that are entirely domestic
Import substitution is one of the most critical components of the undertaking. Russia’s industrial sector has intensified its efforts to create domestic components for advanced railway apparatus in response to sanctions and restrictions on foreign technology supplies.
In the past, Russian locomotives that were fitted with asynchronous drives often relied on imported electrical systems, which included Siemens-developed technology. Nevertheless, the new generation of locomotives is being built wholly on a domestic technological foundation.
The Novocherkassk Electric Locomotive Plant has been designated as the main production site for the extensive modernization initiative, and it plays a critical role in this transition.
Concurrently, TMH-Elektrotekh has increased the production of four new varieties of asynchronous traction motors. Annual production is projected to exceed 5,700 units by the conclusion of 2026. This will facilitate the production of locomotives on a wide scale and generate approximately 500 new employment opportunities.
This initiative is not only concerned with transportation in Russia. It also serves as an important driver for advancing digital control systems, power electronics, and domestic electrical engineering.
“Malakhit” Signals the Inception of a New Era
The 3ES8 “Malakhit” freight locomotive is one of the main symbols of this technological transition. The locomotive is already regarded as the cornerstone of a comprehensive family of prospective Russian heavy freight locomotives.
The “Malakhit” is equipped with a modern body structure, advanced digital control systems, and a domestic asynchronous traction motor. It provides substantially greater levels of automation and digital integration than previous locomotive generations.
Additionally, engineers prioritized safety. The onboard software continuously evaluates operating conditions and optimizes equipment performance, while the driver’s cabin is equipped with reinforced crash-protection elements.
The high rate of localization is particularly noteworthy. Developers assert that the locomotive’s components are manufactured domestically to a maximum extent of 94%.
“Malakhit” is Russia’s first major undertaking to develop a heavy electric locomotive that is entirely domestic and does not rely on foreign technologies in critical ways.
“Orlets” Transitions to Testing
The new 2ES11 “Orlets” locomotive is indicative of the subsequent phase of development. Currently, this machine is undergoing testing and is regarded as one of the most promising heavy freight locomotive initiatives in Russia.
Testing started at the VNIIZhT experimental railway circuit in Shcherbinka in late 2025. Traction performance, electromagnetic compatibility, braking systems, and overall equipment reliability are currently being assessed by engineers.
The locomotive’s most remarkable attribute is its exponentially increasing power. The new locomotive is one of the most capable freight locomotives developed in Russia, with an estimated 42 percent more capacity than earlier models.
The “Orlets” is capable of transporting trains carrying up to 7,100 tons in its two-section configuration, and up to 9,000 tons in its three-section variant.
This capability is of paramount importance to the Eastern Polygon, as it enables the significant increase in railway throughput without necessitating the expansion of large-scale infrastructure.
This transition has already been implemented by the global railway industry.
Russia’s transition to asynchronous locomotives is entirely consistent with the current global railway industry trends. Asynchronous traction systems have long been the norm in the majority of countries with advanced railway engineering sectors.
Siemens’ Vectron electric locomotive family is among the most well-known examples. The high efficiency, reliability, and operational flexibility of these locomotives have made them extensively used throughout Europe.
Asynchronous technologies are also the primary foundation for modern locomotives in the United States, Europe, and China. In actuality, the global era of commutator traction motors is gradually drawing to a close.
These technologies are particularly critical for Russia, as railways continue to serve as the foundation of the nation’s freight logistics system. The most efficient equipment is necessary due to the heavy reliance on rail transportation, harsh climates, and vast distances.
The Implications for Russian Railways
Russia’s railway sector may undergo its most extensive locomotive fleet modernization since the Soviet Union’s collapse within the next decade.
The transition to asynchronous traction systems encompasses considerably more than the mere replacement of motors. It signifies the introduction of an entirely new generation of rolling stock. Locomotives will evolve into more technologically advanced, energy-efficient, and powerful ones. The carrying capacity of major railway corridors will expand without necessitating large infrastructural investments, maintenance costs will decrease, and automation levels will rise.
The Eastern Polygon will be particularly affected by the impact, as freight volumes are currently at record highs.
Russia is currently establishing the groundwork for its railway system in the 2030s and beyond in numerous respects. The new standard for Russian heavy freight rail operations could be asynchronous electric locomotives by the end of the next decade if the project is fully implemented.