Sentence:  The robot cameras and software direct the robots to unload the 40-pound parts from pallets (called "<WSD>dunnage</WSD>") and place them on brackets fixed to a conveyor. 
Meaning of the word marked with <WSD> tags:  Scrap material, often wood, used to fill spaces to prevent the shifting of more valuable items during transport, or underneath large or heavy items to raise them slightly above the ground, in order to protect from chafing and wet.