Mr Bridger was arrested on suspicion of April murder and abduction on Friday, October 5.
Superintendent Ian John said 90 out of 135 officers have been deployed to the village of Ceinws, around five miles north of where April was last seen. He added that the move was not based on any new intelligence.
The diggers are helping to search in open ground - "not in his house but close to it" - Supt John said.
Police say they have almost finished searching April Jones' home town and the focus has shifted to suspect Mark Bridger's village.
Police have confirmed the high numbers of officers searching for April Jones will remain over the weekend.
Mark Bridger appeared in court this morning accused of the abduction and murder of five-year-old April Jones.