Donut Lab, 875 horsepower in the wheels

At the Las Vegas automotive expo, Finnish company Donut Lab unveiled its latest in-wheel electric motors, aiming to revolutionize vehicle electrification. While this technology has seen limited adoption so far, its potential applications in tractors and heavy machinery could make it a game-changer for the industry


Donut Lab

For Off-Road and agricultural machinery

In the automotive sector, in-wheel electric motors have been largely overlooked due to weight distribution challenges. The added weight in the unsprung mass of a vehicle can negatively impact handling and performance. However, agricultural tractors and heavy machinery—which traditionally lack rear suspension—could benefit significantly from this innovative technology.

Key advantages of In-wheel electric motors for tractors and work vehicles

Donut Lab
Donut Lab
  • Eliminated transmission components → More space under the hood and better weight distribution.
  • Greater steering angles → No need for traditional drivetrain components.
  • Fewer mechanical parts → Reduced complexity, lower maintenance costs.
  • Optimized power delivery → Precise traction control for each wheel, adapting to load and terrain conditions.

Donut Lab’s high-performance electric motors

Donut Lab’s Las Vegas debut reignited interest in in-wheel electric propulsion, particularly with its powerful 21-inch motors. These units, despite weighing just 40 kg, deliver 630 kW (875 HP) and 4,300 Nm of torque per motor, making them ideal for off-road applications. The system allows for individual torque modulation per wheel, optimizing traction and energy efficiency.

Potential expansion to the agricultural and trucking sectors

Currently, Donut Lab has focused on automotive electrification, but it has also developed a truck-specific version of its in-wheel motors. This variant offers 200 kW (272 HP) and 3,000 Nm of torque, maintaining a lightweight 40 kg per unit.

If applied to tractors and off-road vehicles, this technology could enhance traction, increase pulling capacity, and reduce energy losses, paving the way for a new era of electric agricultural and construction machinery.

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