Rear Axle Manufacturing in Focus: From Gear Setup to Surface Protection

Rear axle reliability begins with precision—from the first gear alignment to the final layer of protective coating. At SiA&JinHao, we continue to refine every detail of our production process to ensure each axle meets the high-performance demands of modern electric vehicles.

In this behind-the-scenes feature, we highlight two essential steps in our axle assembly workflow:

Gear Setup & Clearance Adjustment – Every differential and gear set is fine-tuned by experienced technicians using calibrated tools and inspection gauges. This ensures optimal meshing, low noise, and long-term durability under real-world torque loads.

Protective Coating & Surface Finishing – After assembly, the axle housing is treated with anti-rust coating and undergoes a precision spray process. This protective layer improves corrosion resistance and extends service life, especially in humid or off-road operating conditions.

At SiA&JinHao, every alignment and coating reflects our commitment to building precise, protected, and performance-ready axle systems for the EV industry.