There are few ways to do it. Which you choose? Read below.
Tips to Defeat Station Turrets with Shields
You have to try and grab (‘F’) one of their bombs and use it against them.
This can be hard during combat with other enemies of course, so a lot of the time I just overload them with a flak and a rocket salvo. EMP and Annihilator Virus can help too, but take time of course.
You need turning off the shield temporarily. Otherwise would have to shoot some kind element nearby that functions as “shield generator”.
Also you can defeat shielded turrets with scorpion missiles. They teleport behind the shield and kill the turret. Devices like the Virus will work too.