Hamrobekov is a member of the Uzbekistan national team and has been recognized for several years in the Super League for his gameplay, intellectual control on the field, and accurate passing.
Tractor aims to strengthen its midfield experience with this transfer.
The 29-year-old player had also been linked with another Iranian team, Esteghlal.
Tractor, headed by Dragan Skocic, will compete in the 2025-26 AFC Champions League Elite.