The president of the Queensland Industrial Court has adjourned a decision on whether to allow a young boy to use a front end loader in a quarry.

Quarry owner Dirk Karreman is appealing against a directive from a mining inspector that bans his grandson from using equipment at the Redlands operations on Brisbane's bayside.

Lawyers for Mr Karreman told the court nine-year-old Dane Karreman operated the loader efficiently and safely, that he had done so on weekends and had more than 500 hours of experience.

Lawyers for the State Government say it is an unnecessary risk.

Outside court, Mr Karreman expressed his anger.

"To have to go and sit there to argue the facts that we've done is frustrating," he said.

"I think it's fundamentally wrong. They're starting to encroach on people's fundamental rights to teach their kids."