These bots only mine until they are attacked. They are heavily armored. Easiest way to kill them is to either stream avalons at cruise speed or stack the avalons. Once a single guardian is damaged, you will have a over five of them chasing you. Since they are armed with Power Cell Blasters, Law Enforcement Neutron Blasters, and Axia Accelerated Positron Blasters, your best bet is leave the sector after your avalons hit. Their weapons do not drop.
Another strategy is to keep a capital ship beyond their chase range, and reload off of it.[ Make sure they don't chase you to your capital ship. Some pilots dislike this strategy because the clumping of these drones thins out after a while, reducing the kill rate.
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