Robin Hollyson, 31, from Bedfordshire, was part of a child sex abuse ring which targeted babies, toddlers and pre-school children.
The men preyed on families with young children, so they could later attack the youngsters.
In one case they groomed a young couple who was about to have a baby.
The depraved group has been described by a judge as “beyond human instinct”
Last year, Hollyson began serving a 24-year sentence after pleading guilty to three counts of raping a child under the age of 13.
He also admitted to three counts of conspiracy to rape a child under 13, sexual assault of a child under 13, and taking, showing, and possessing indecent images of children in extreme pornography.
The other men convicted were John Denham, 50, from Wiltshire, Matthew Stansfield, 35, from Hampshire, Adam Toms, 33, from Somerset, Christopher Knight, 35, from Manchester, David Harsley, 51, from Yorkshire, and Matthew Lisk, 33, from Sussex.