Three hours. No breaks. No human help. China’s biggest tech company just changed what a factory worker can look like.
On a car production line in Shenzhen, something quietly remarkable happened this week. For three continuous hours, a team of humanoid robots built by Xiaomi assembled vehicle components without a single moment of human intervention. No supervisor stepped in. No technician corrected a mistake. The machines simply worked.
Xiaomi founder and CEO Lei Jun confirmed the trial this week, describing it as the company’s first stable real-world deployment of humanoid robots in industrial manufacturing. The robots were shown in company footage picking screw nuts and tightening them to designated spots on car floors, achieving a 90.2 per cent success rate within Xiaomi’s rapid 76-second-per-unit production cycle.
That success rate was calculated by dividing successful installations by total attempts a straightforward measure that nonetheless represents a significant technical threshold for autonomous robotics in a live factory environment.
“This marks the first step towards stable application of Xiaomi’s humanoid robot in the field of intelligent manufacturing,” Lei wrote on social media on Tuesday.
What the Robots Actually Did
Beyond the headline task of nut installation, the robots carried out a broader range of duties on the production line. These included removing protective films from vehicle components, installing vehicle badges, handling self-tapping nuts and moving material boxes between stations.
Xiaomi framed this range of tasks as evidence of a genuine transition — from robots that perform controlled demonstrations in laboratory settings to machines capable of operating within the controlled chaos of a real automotive facility.
The technical obstacles the company had to overcome were not trivial. Xiaomi cited three specific challenges: achieving precise alignment with locating pins, managing variations in the internal spline structures of different nuts, and counteracting magnetic forces that could interfere with grip stability during handling.
The Technology Underneath
Xiaomi’s humanoid robots are built on the company’s tactile fine-tuning model TacRefineNet a system that relies entirely on touch rather than visual input or pre-loaded 3D object data. This means the robot navigates tasks by feel, adapting to physical variables in real time rather than matching what it sees against a stored model of what something should look like.
This approach is paired with a vision-language-action large model, combining tactile and cognitive processing to handle the kind of subtle, variable physical tasks that have historically been the preserve of human hands.
Five Years, a Large Number
Lei Jun said the company intends to continue expanding the role of general-purpose humanoid robots across its smart manufacturing operations, anticipating that “a large number” of humanoid robots will be working across Xiaomi’s factories within the next five years.
The company declined to specify how many robots that figure represents, what each unit costs to produce, or a precise timeline for reaching that target. The direction, however, is unambiguous.
A Sector on the Move
Xiaomi’s announcement lands as China’s humanoid robotics industry draws growing investor attention. Galbot this week revealed it had raised 2.5 billion yuan ($363 million), months after closing a round that valued the firm at over 20 billion yuan. Noetix Robotics simultaneously announced nearly 1 billion yuan in Series B financing, led by Chendao Capital, an affiliate of battery giant CATL.
The sector gained significant public visibility earlier this year when humanoid robots featured prominently at China’s Spring Festival Gala, broadcast to hundreds of millions of viewers. For a technology once confined to research labs and trade show demonstrations, that moment signalled something harder to quantify than a funding round: mainstream arrival.
Xiaomi’s three-hour trial may be modest in isolation. In context, it is a data point in a much larger shift one in which the factory floor is being quietly, methodically, irreversibly reimagined.
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