Cow is tied up neatly and placed on a special machine. Specialist secures the hoof, and washes them.

Then a professional cleans the hoof using grinders and other tools. After the procedure, the cow is lowered to the ground and untied.

World Modern Technology Automatic Cow Shoeing and Cleaning Mega Machine Factory on Wheels

To all who think hoof trimming is evil, it's a necessity as poorly outgrown hoof will cause nothing but pain to the cow when she tries to move. Furthermore, it is also done to correct out any abrasions in the hoof/hooves which could otherwise lead to the entry of pathogens. What hooves are to them, are fingernails incase of humans..Imagine not trimming your toes nails for about 6 months and walking bear feet and a toe nail breaks..OUCH ay!..The same scenario is replicated incase of hooved animals. Hope this clears out any negativity towards this or any other similar videos.Cheers!