The Kiis FM team tweeted the news with pride after the horrifying stunt.
A video was later posted to the KIISFM website.
Sandilands and co-host Jackie O were conducting an interview when he said: "Hang on, I feel really sick," before vomiting into a bin.
The radio host had time between vomits to blame his sudden bout of vomiting on colleagues.
"I don't know whether it is that bloody ridiculous story you have been telling," Sandilands said.