Meet Kesla 28RH, a roller feed harvester head that makes short work of cutting down trees

Scary robot lumberjack makes deforestation too easy.  (boing boing, 11/16/2015)

Find out more at the Kesla website.

And here's the brochure, which doesn't use the word 'robot'.

If you look at the video closely, you'll see a human operator inside of the excavator.  But the Kesla 28RH basically fits Merriam-Webster's definition of a 'robot': a machine that can do the work of a person and that works automatically or is controlled by a computer.

The word 'computer' appears 3 times in the brochure:

• The computer controlled pressure adjustment is based on tree diameter ensuring optimal clamping force throughout the feeding; the feed rollers’ grip and delimbing power is maximized without wasting energy on unnecessary clamping.
• The computer-controlled hydCON length measuring wheel follows the timber surface precisely in all conditions which significantly improves measuring accuracy. 
• The accessory package includes feeding rollers and delimbing knives specifically designed for eucalyptus tree, as well as special software for measuring computer.