The Match Review Panel deemed the rough conduct charge as negligent (one point), high contact (two points) and high impact (three points), drawing 325 demerit points and a three-match suspension.
With an early guilty plea, the ban is reduced to two matches.
The two-match ban would see Hartlett miss crucial clashes against Fremantle (away) and Carlton (home).
The club will decide overnight whether to appeal the ban.
