Heavy-duty EVs need every bit of efficiency they can get. Here's how electric portal axles turn "range anxiety" into "range confidence."
1. Weight Savings = Longer Range
Traditional drivetrains (motors + driveshafts + gears) add bulk. A portal axle integrates everything into one unit:
Example: The EA5000N distributed axle cuts 300kg from a truck's weight. Less weight = less energy to move, extending range by 8–12%.
2. Torque on Demand (Without Waste)
Electric portal axles deliver torque directly to the wheels, skipping inefficient drivetrains:
The EA2100N's 21,552 N·m torque moves 13T buses uphill without straining. Traditional systems lose 15–20% torque to drivetrain friction.
3. Regenerative Braking Done Right
Most e axle systems include regenerative braking, but portal axles do it better:
When a bus stops, the axle captures energy from the wheels and sends it back to the battery. Some models (like the EA1400K) recover up to 15% of energy-critical for stop-and-go routes.
4. Low-Floor Design = More Payload (or Passengers)
By placing the motor above the wheel, portal axles free up chassis space:
Buses gain 755mm interior channels (more passengers).
Trucks gain room for larger batteries (extending range) or bigger cargo boxes (boosting revenue).
5. Less Maintenance = Lower Costs
Fewer moving parts mean fewer things to break:
The EA2100N's Electronic Differential System (EDS) needs no regular adjustments (unlike mechanical differentials). Over 10 years, this saves thousands in maintenance costs.
Curious how much range your fleet could gain? Check out our electric portal axle product page for specs, case studies, and efficiency calculators.