How Xiaomi’s 9100-Ton Die-Casting Machine is Shaping the Future of EV Manufacturing

In recent years, advancements in manufacturing technology have drastically reshaped industrial production. One such revolution lies in the adoption of ultra-large die-casting machines, a game-changer for the automotive industry. At Kazida, we believe Xiaomi’s success with its 9100-ton integrated die-casting system exemplifies how state-of-the-art equipment can significantly reduce production costs while ensuring superior quality. In this article, we delve into how Xiaomi leveraged cutting-edge die-casting technology for its SU7 electric vehicle and explore the broader implications for modern manufacturing.

On April 3rd, Xiaomi delivered its first batch of SU7 electric vehicles, marking a significant milestone for the company. With over 10,000 orders and 4,000 locked-in purchases, the success of this model reflects Xiaomi’s ability to merge innovative marketing with advanced manufacturing. Central to this achievement is Xiaomi's 9100-ton integrated die-casting machine, which has been widely showcased by CEO Lei Jun, attracting significant attention across industry channels.

Die-casting technology has redefined how vehicle components are manufactured. Initially pioneered by Tesla in 2022 with its 6000-ton die-casting machines, the approach consolidated over 70 parts into just two for the Model Y’s rear underbody. This innovation reduced production time from 1-2 hours to as little as 45 seconds, slashing costs by 40% while shrinking factory footprints by 30%. Inspired by Tesla’s success, automakers like Mercedes-Benz, Volkswagen, Volvo, and Xiaomi have embraced similar techniques.

At the heart of Xiaomi’s manufacturing process lies the 9100-ton die-casting machine, a key to producing the SU7’s rear underbody with unparalleled precision and efficiency. Key parameters of the machine include:

These technical factors demonstrate that Xiaomi has chosen a prudent and mature path in integrating die-casting technology, ensuring reliability while optimizing production.

While die-casting offers clear advantages, the process is far from straightforward. Kazida’s industry insights highlight several key challenges:

Xiaomi’s use of the 9100-ton machine not only enhances product quality but also significantly lowers costs. By consolidating components, reducing labor-intensive processes, and improving material efficiency, Xiaomi ensures the SU7 remains competitive in the EV market. For a vehicle priced at ¥215,900 (~$30,000 USD), such cost savings are vital.

According to industry estimates, a 9000-ton die-casting machine costs around ¥100 million, with tooling costs adding another ¥20 million. However, these investments yield long-term benefits by streamlining production and reducing waste.

As integrated die-casting technology continues to evolve, its applications are expanding beyond rear underbodies to potentially encompass entire vehicle structures. With suppliers like Guangdong Hongtu and IDRA pushing the boundaries with 12,000-ton and 16,000-ton machines, the automotive industry is poised for greater advancements.

At Kazida, we see this as a testament to how advanced machinery shapes modern manufacturing. By investing in high-performance equipment and adopting innovative techniques, businesses can achieve a harmonious balance of quality, efficiency, and cost-effectiveness.