Military-grade performance for wheeled combat vehicles
The ESM 280 is RENK’s next-generation transmission Transmission The function of a vehicle transmission is to adjust the torque and speed, and to transfer engine power to the drive wheels. system for medium to heavy wheeled armored vehicles up to 620 kW. Based on the combat-proven ESM 350 range pack, it brings our expertise with main battle tank technology into wheeled platforms, combining maximum performance with exceptional durability under extreme operational conditions.
Unlike conventional commercial transmissions Transmission The function of a vehicle transmission is to adjust the torque and speed, and to transfer engine power to the drive wheels. , the ESM 280 was purpose-built for military requirements. An electronically controlled multi-disc launch clutch replaces the traditional torque converter, enabling optimized oil cooling, superior thermal stability, and sustained performance even in the harshest environments.
With eight forward and four reverse gears, the transmission Transmission The function of a vehicle transmission is to adjust the torque and speed, and to transfer engine power to the drive wheels. enables uninterrupted tractive effort and forward-to-reverse shifts in less than 0.6 seconds. Its total gear ratio of 14.5 ensures high torque at low speeds, outstanding off-road mobility, and superior vehicle performance in demanding terrain.
Despite its high-performance capabilities, the ESM 280 features a compact design with a weight of approximately 550 kg, allowing seamless integration into existing vehicle platforms without structural modifications to the hull or chassis.
Three freely positionable power take-offs (PTOs) and attachable auxiliary modules support a highly integrated system architecture with minimized interfaces, reduced maintenance effort, and lower logistical complexity. A shared lubrication system further enhances efficiency and serviceability.
Designed for a lifecycle of up to 40 years, the ESM 280 guarantees long-term maintainability and spare parts availability independent of civilian platform cycles. In addition, the system is free from ITAR, EAR, and BAFA restrictions, ensuring maximum operational sovereignty and export flexibility.
Beyond the transmission Transmission The function of a vehicle transmission is to adjust the torque and speed, and to transfer engine power to the drive wheels. itself, RENK can provide complete powerpack Powerpacks A Powerpack is a compact drive unit which incorporates the motor, gearbox and other systems within a single module. solutions on request, including engine, cooling system, and transfer case. Combined with RENK suspension systems Suspension systems Suspension systems are designed to dampen the shocks and vibrations experienced when driving on uneven terrain. proven worldwide, customers benefit from a fully integrated mobility architecture from a single source.
Features
- Identical 4-brake discs for improved industrialisation
- Identical epicyclic trains: same number of teeth, same module
- Very high compactness of 92 dm3 / 380 Kg
Technical Data
| Dimensions: | 1000 x 600 x 550 mm |
| Maximum engine power: | 620 kW (850 hp) |
| Vehicle weight, typical: | 20–50 t |
| Number of gears: | 8 forward gears, 4 reverse gears |
| Max engine torque: | 3.500 Nm |
| Overall ratio, mechanical: | 14.5 |
| Transmission weight (without oil filling): | 550 kg |
| Starting system: | Electronically controlled start-up clutch, oil-cooled |
| Retarder (optional): | Integrated, oil-cooled multi-disc retarder |
Downloads
- ESM 280 (179 kB)
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