Thirteen people have been convicted of involvement in a human trafficking network between Iraqi Kurdistan and the UK.
The ring was smashed by the South East Regional Organised Crime Unit, which spent two years investigating it.
Woolwich Crown Court in London was told the migrants would often be hidden in the wind deflector on the top of the lorry’s tractor unit or underneath the trailer on a pallet shelf.
If they were caught at the port of Dover they were advised to immediately claim asylum and would then be released to relatives in the UK, who had paid up to £10,000 per person.
If they made it through they would be taken to a motorway service station close to the ferry terminal where a gang member would take them in a car to a safe house in Hastings or nearby St Leonards in Sussex.
But ultimately the migrants would end up living and working in Brighton, Eastbourne, Bolton, Nottingham or Hull.
The gang’s ringleaders were Alan Hoger, 33, and Goran Ahmed, 33, who were both Kurdish but lived in East Sussex.
Hoger, who had boasted of being a millionaire, siphoned his profits through legitimate companies back to the Kurdistan region of northern Iraq.
Police seized £144,000 in cash and will be making further confiscation orders under the Proceeds of Crime Act.
Hoger was jailed for 10 years and Ahmed for eight years.
Romanian lorry drivers Cristinel Samson, 50, and Ionut Cornila, 27, were jailed for five and four years respectively.
Police from Sussex, Kent, West Midlands, Nottinghamshire and Devon and Cornwall were involved in the investigation, along with the UK Border Force.