Jingjin Electric Shanghai Factory has a fully automated production line that produces one motor every 3 minutes without any workers on the assembly line. That is, the "black light factory", which can still produce when the lights are turned off.

The main force of this production line is the STEP industrial robot. Contributing to the process of accelerating industrial upgrading and actively promoting smart factories in the country, STEP robots have been working hard! 

"Super Engineering" Season 3 Episode 4 "Made in China" 

Dr. Cai Wei knows that
now is an opportunity for Chinese automobiles.
With 14 years of research and development experience in electric motors overseas,
Dr. Cai Wei has become the most influential member of the global electric motor industry.
Today, the motor developed by Dr. Cai
has been included in the procurement list of the world's top auto companies and
has become a new international competitiveness of China's new energy vehicles.
In Shanghai, Dr. Cai Wei's factory is stepping up production of a new generation of motors.
This is a fully automated production line that
produces 1 motor every 3 minutes
without any workers on the assembly line.
Traditional motor production
is mainly manual
or semi-automatic production.
And this self-developed production line,
we call the black lamp factory,
can still produce when the lights are turned off,
which solves the problem of some product inconsistencies.
The 10,000 or even 100,000 units of products we produce
are completely consistent.
A larger automated assembly line is under construction.
In the future, he will increase the motor production capacity of this factory several times.

Source: CCTV "Super Engineering" Season 3 Episode 4 "Made in China"