Two instances where no hands were used: The outpouring on Pentecost to the first Jewish Christians in Acts 2 and the outpouring on the first gentile Christians in Acts 10. Every other reference to how God's spirit is given (as far as I know) through the laying on of hands. I have no idea why this would be so. Perhaps it has to do with the body of Christ needing physical contact with a potential new member. I don't know. All I know that this is the biblical norm and the example preserved in scripture.
Does your church claim an apostolic tradition?
No, not if I understand the use of that term.
I asked about apostolic tradition given only certain apostles in Acts laid hands for the indwelling of the Holy Spirit. So your church would have to have a succession of apostles leading back to the original apostles. Like the Romans claim. Remember Peter and John were sent to Samaria to lay hands, yet Phillip was already there. It seems that only certain apostles could do this for various purposes.