A Cardassian disruptor, also known as a Spiral-wave disruptor, is a type of disruptor weapon technology employed by the Cardassian Union. The evolution of Cardassian disruptors tend to differ from the disruptors used by other races and cultures, some Cardassian variants are referred to as spiral-wave disruptors and phase disruptors, the latter of which refers to the seeming incorporation of some facets of phaser technology in their construction.
These weapons are available to the Cardassians as hand-held weapons such as disruptor pistols or disruptor rifles, as well as larger disruptor arrays and disruptor cannons used in starships, vehicles, planetary outposts and space stations. (DS9 reference: Star Trek: Deep Space Nine Technical Manual)
In 2369, during the withdrawal from the occupation of Bajor, a Cardassian gul (see unnamed Cardassians) was frustrated because his hand disruptor would be useless to excavate a temporal device found embedded in the wall of a uridium mining operation. He later used the disruptor to collapse the cavern it was in, hoping that Cardassians could someday return to claim the device. (DS9 comic: "No Time Like the Present")
Iliana Ghemor's mercenaries obtained several spiral-wave disruptors following the Dominion War. A Besinian freighter was equipped with the weapons. (DS9 - Worlds of Star Trek: Deep Space Nine novel: Bajor: Fragments and Omens)