The 8D-series smelter droid was a smelter droid type produced by Roche Hive Mechanical Apparatus Design and Construction Activity for Those Who Need the Hive's Machines. This series of droids had a humanoid form, featuring white plating and sensors that were yellow. As with all smelter droids, the 8D-series was built to be incredibly durable, enabling them to function in the difficult environments of ore extraction sites. During both the Clone Wars and the Galactic Civil War, the 8D-series was commonly used across the galaxy by numerous groups and governing bodies.