Soul grinder

Soul grinders are a type of engine used by the Scourge in the Forge of Souls. The Alliance and Horde attacked the Forge in order to destroy these twisted machines.Underdev/Icecrown Citadel: The Frozen Halls
Bronjahm was the foreman of the soul grinder engines. After learning from Kel'Thuzad himself the value of souls and how to grind them down to fuel the engines of the Scourge, he patrolled the Forge to ensure that no interruptions befell the engines' operation.Bronjahm#Bosstiary and Adventure Guide
The Devourer of Souls was the chief operator of the soul grinders, dedicated to preventing souls from escaping the dark machines. It would consume stray spirits and break them down.Devourer of Souls#Bosstiary and Adventure Guide
==Shadowlands==
In the introduction cutscene to the battle with the Jailer, it is revealed that the soul grinders were built to extract the world-soul of Azeroth, channel it through the Spire of Icecrown Citadel and the Pinnacle of Domination of Torghast, and deliver it into the Heart of Eternity.
File:Jailer intro cinematic - Soul grinders.png|The soul grinders active
File:Jailer intro cinematic - The Spire.png|Azerite shooting up along the Spire
File:Jailer intro cinematic - Azerite beam.png|The beam between Icecrown and Torghast
==Notes==
*Sleeping flesh giants can be seen in the background of the Forge of Souls, implying the souls are used up to power them.
*Although they are the primary set piece for the dungeon, especially Bronjahm's fight, they are not directly interacted with or mentioned in dialogue.
==See also==
*Soul engine
==References==
Category:Technology
Category:Souls
Category:Forge of Souls
Category:Scourge