Musk Says China's Export Restrictions on Motor Magnets Delay Tesla's Optimus Project by About Two to Three Months
Musk stated that China's restrictions on the export of magnets used for motors last year caused a delay of about two to three months for Tesla's Optimus robot project. At that time, the company had robots but no arms.
Musk made these remarks during an interview at the X Takeover event with Tesla Owners Silicon Valley. He claimed that China's blocking of motor magnet exports pushed the project back by about two to three months. Tesla must ensure that it can manufacture robots in the U.S. even if China cuts off supplies. He emphasized the need to be able to produce all components domestically.
The magnet issue involves permanent magnets in the arm actuators, and the motors need to be as small as possible. Musk stated that fine motor control of the hands and arms is extremely difficult. The ramp-up in production will be very slow initially due to the lack of an existing supply chain for the robots. The company's internal goal includes producing over 1,000 units per week by the end of 2026. Tesla is also certifying some Optimus component suppliers in China.
Funding is shifting from a supply chain reliant on Chinese magnet exports to domestic manufacturing capabilities in the U.S. The robot arm actuators' reliance on small permanent magnets means that export restrictions directly translate into project delays. Tesla is reducing the risk of supply chain disruptions by promoting domestic component production. China's export controls on magnets are putting pressure on robot projects that depend on this source.
Source: Public Information
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Musk revealed in the X Takeover interview that China's export restrictions on motor magnets last year caused a delay of about two to three months for the Optimus project, during which there were robots without arms. He had previously mentioned magnet supply issues in the earnings call. Tesla is localizing robot production as a response.
The company is pushing for all components to be manufactured in the U.S. to cope with potential supply cuts. The arm actuators use small permanent magnets, which have strict requirements for size and performance. The ramp-up in production will be slow due to the lack of an existing robot supply chain. Fine control of the hands remains an engineering challenge.
Similar export restrictions have led to shortages of key components and project delays in other robotics and motor applications. Currently, Optimus is in a phase where hand engineering and supply chain localization are being advanced in parallel.
This essentially involves a restructuring of the supply chain and a transfer of pricing power. Export restrictions have shifted magnet supply from a concentrated source in China to a domestic layout in the U.S. The mechanism involves China implementing export licenses for permanent magnets containing heavy rare earths, restricting the outflow of motor magnets, which prevents timely assembly of arm actuators reliant on this supply chain, forcing the project to wait or seek alternative sources, while also pushing downstream manufacturing capabilities to shift to the U.S.
ABAB News · Cognitive Law
Export restrictions have shifted key magnets from concentrated supply to project delays and domestic alternatives
When there is no existing supply chain, the initial ramp-up of robot production will inevitably be slow
The arm actuators' reliance on small permanent magnets means that export controls directly translate into assembly stagnation