which software for animation?

I wonder which software is used to make an animation like in this link :

http://www.claas.co.uk/countries/generator/cl-pw/en/products/combines/lexion-600/video_animation/ani_inside/start,lang=en_UK.html

I suppose the animation is maked in special software, started with an imported 3D cad file.

Anybody an idea which software is the best to make such an animiaton?

Philippe

SolidworksGeneral