Extraction Devices were devices created by the Umojan Protectorate to harvest terrazine from the native Jarban gliders. It used biomechanical engineering to extract terrazine from living organisms. Upon gathering the terrazine, the machine releases the captive glider.
When the Umojan Protectorate expedition was overrun by the zerg, these machines remained intact. Agent Nova Terra arrived on Jarban Minor in search of terrazine, and used these devices to harvest it. However, the Tal'darim under First Ascendant Ji'nara sought to challenge Nova and destroy these devices, while the zerg and infested Umojans were drawn to the devices' activation. Nova fought through both of these forces, and gathered the terrazine she needed.
During the End War, Amon's Forces used extraction devices to harvest terrazine from the Bel'Shir gliders of Bel'Shir. Egon Stetmann requested that the allied commanders aiding him with his terrazine harvesting operations destroyed the devices and freed the Jarban gliders within.