And the robot can reach up to 12 m with an emergency operation device of a fuel exchange machine when the mast is fully extended.
The first frame of the mast is driven by an electrical motor through a chain and a screw. The mast design was refined from our previous telescopic mast design, which reached up to 9 m and adapted a chain-driven mechanism. Thus, the robot can observe a higher area and lose weight.
The weight of the mast is 230 kg and the payload is 50 kg. Fig. 4 shows the mast installed on the mobile platform.