06 July 2021
The mechanical arm installed on China's space station core module Tianhe has played an important role in assisting the astronauts with their extravehicular activities on 4 July. The mechanical arm is designed to ensure the safe and reliable operation of the space station in orbit, to help the astronauts in EVAs, such as the assembly, construction, maintenance, and repair of the space station, and support space applications. With a design life of 15 years, load capacity of 25 tonnes, and tip positioning accuracy of 45 millimeters, the mechanical arm installed on the Tianhe module can realize long-range, large-load operations and small-range, detailed operations.
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