ZHUCHENG, China, September 28, 2026 — Electrifying long-haul trucking has stopped being a battery story and become an axle story. Volvo Trucks began series production of its heavy electric range on September 14, and its 700 km flagship works only because a new e-axle freed room for eight battery packs — mass that then forced a steerable tag axle behind the drive axle.
What Volvo shipped. The Volvo FH Aero Electric carries 780 kWh across up to eight packs and is rated at up to 700 km a charge, recharging 20–80% in about 50 minutes. The next-generation FH, FM and FMX Electric reach 470 km. Production began September 14 at Tuve in Gothenburg.
Why an extra axle. Battery mass does not sit evenly. Reporting from IAA Transportation 2026 (Hannover, September 14–20) by Australia's HVIA describes the fix: a steerable tag axle behind the drive axle on 245/70 R17.5 wheels, giving a 4x2 prime mover the load capacity of a 6x2. MAN and Scania showed similar layouts. Range versus payload is now solved with axle count, not chemistry.
China's route. Chinese makers attacked it from the other end: integrate first, add later. XCMG launched its Hanjing tractor on September 20 around a patented integrated electric drive axle and 800V architecture recharging 20–80% in under 20 minutes; pre-launch it ran 2,198 km in 24 hours at 49 tonnes.
The load-path effect. Every extra kilogram lands somewhere: the front axle must hold steering geometry with more mass ahead of the cab, the drive axle or e-axle must deliver torque without paying twice for weight it carries, and the tag axle must survive scrub on a smaller wheel far from a workshop.
Where Yihe Axle stands. Zhucheng Yihe Axle Co., Ltd. builds front axles and drive axles for commercial vehicles and supplies new-energy axle assemblies. A commercial vehicle axle earns its keep as a load-bearing part first; electrification only works if beam, housing and wheel end already do.
The takeaway. As electric truck range passes 700 km, battery mass rather than motor power sets the axle specification — and winning designs will be judged on load path and service life.
