This is the second model that I create for sale on 3D platforms such as TurboSquid and CG Trader, it was designed to be used commercially and it already has rigging, which are the controls that animators use, I leave the link below where you can buy it

 

https://www.turbosquid.com/3d-models/robotic-arm-2-3d-model-1829293.

Art direction -George G.

Design - George G.