The BBC's Tom Symonds reports that the men were found guilty of 59 charges, including 38 counts of rape, nine counts of arranging prostitution and five counts of trafficking.
The court heard that victims were girls aged between 11 and 15, and were drugged as they faced horrific abuse including rape, chocking, branding with a hot wire and death threats.
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Friends of the men paid to take part in the abuse.
Detective Chief Inspector Simon Morton described the men as "vile predators" and stressed how important it is to stamp out such "horrific crimes".
"Those that have been found guilty groom, corrupt, isolate and sexually abuse their victims to the point of torture in some cases," he said.
The gang have been told that long sentences are inevitable.
