The Bonus Robot Gems will only apply if you have mining robots that are fuelled. You can get mining robots from prestiging to A1 or higher, and mining at minimum 100k blocks on your pmine (including the 30k needed for the wheel). You can then fuel the robot by clicking the coal item in the GUI, and this will start the robot. When this robot is going, it will normally produce robot gems at a rate of 1 every 10 minutes (6 per hour). With Bonus Robot Gems. this rate will increase (I think to 1 per 5 minutes (2x) but I'm not completely sure). Have a good day/night!
Hey you can refer to the photo below for all the boosting effect from the wheel of fortune https://imgur.com/a/yc192J8