The Kesselian spice-mining droid, alternatively referred to as the Kessel mining droid, represented a particular mining droid design employed for the extraction of spice within the Spice Mines of Kessel.
On one occasion, R2-D2 adopted the guise of this droid model during a mission that took him to Kessel in 5 ABY. C-3PO joined him, appearing as a Kesselian security droid.