Augsburg, August 25, 2025 – RENK Group AG, a leading supplier of propulsion solutions for the military sector, has commenced development of a forward-looking transmission Transmission A vehicle transmission transfers engine power to the wheels and allows for variable driving speeds. – the HSWL 406 – that is specially designed to meet the requirements of the next generation of battle tank platforms. The HSWL 406 is intended for heavy tracked vehicles from 50 to over 70 tons and will set new standards in military drive technology with its modular architecture and unprecedented level of digitalization.
This independent transmission Transmission A vehicle transmission transfers engine power to the wheels and allows for variable driving speeds. development is the RENK Group’s response to the current diversity of vehicle platforms in Europe, which is leading to considerable efficiency losses. CEO of RENK Group AG Dr. Alexander Sagel sees this as important impetus for consolidation in the field of military drive solutions: “Very few NATO tracked military vehicles drive, steer or brake without RENK technology. The introduction of a modular battle tank transmission Transmission A vehicle transmission transfers engine power to the wheels and allows for variable driving speeds. will strengthen the logistical commonality of the armed forces, achieve faster availability of spare parts, and enable cross-platform supply and maintenance.
The modular design not only ensures compatibility with all relevant engine manufacturers, it also enables a range of configurations and flexible adaptation to platforms of different weight classes – without having to change the architecture of the respective vehicle platform. “The HSWL 406 is setting standards in the development of propulsion solutions for heavy tracks. Our investment in innovation and modularity reinforces our position as technology North Star by offering our customers future-viable, high-performance and market-ready solutions at attractive conditions,” said CEO Vehicle Mobility Solutions, RENK GmbH Michael Masur.
The HSWL 406 uses the ATREX propulsion concept introduced in 2024 as a technology carrier and has fully integrated drive-by-wire functionality. Initial functional tests are currently being carried out. A digital interface will lay the foundation for future autonomous drive solutions in armored vehicles.
The aim is to integrate the first vehicle by mid-2027. This will be followed by customer testing and qualification. The recently completed HSWL 076 demonstrates RENK’s ability to develop market-ready solutions in under two years.
About the RENK Group AG
Headquartered in Augsburg, Germany, RENK Group AG is a globally leading manufacturer of mission-critical propulsion solutions across diverse military and civil end markets. Our product portfolio includes gear units, transmissions, power-packs, hybrid propulsion systems, suspension systems Suspension Systems Suspension systems absorb shocks and ensure vehicle stability. , slide bearings Slide Bearings Slide bearings enable low-friction movement between fixed parts. , couplings Couplings Couplings connect two shafts to transmit torque. & clutches and test systems Test Systems Test systems assess technical components for function and durability. . With this broad product portfolio RENK Group AG serves, in particular, customers in industries for military vehicles, naval, civil marine, and industrial applications focused on energy. In the fiscal year 2024, RENK Group AG generated revenue of EUR 1.14 billion. RENK Group AG has been listed on the Frankfurt Stock Exchange since February 7, 2024, and has been a member of the MDAX since March 24, 2025.
Disclaimer
This Press Release contains forward-looking statements that are based on plans, expectations, estimates and projections of the management of RENK Group as at the date of this Press Release. These plans, expectations, estimates and projections depend on a variety of assumptions and are subject to unforeseeable events, uncertainties, known and unknown risks as well as other factors that may cause actual results or the actual financial situation, development or performance to differ from those expressed or implied in the forward-looking statements. RENK Group does not assume any obligation to update the forward-looking statements or make adjustments to them to reflect events or developments occurring after the date of this Press Release unless obliged by statutory law.

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