I would say no. The airport is right outside the city and the train station is smack bang in the middle. So on top of getting through passport control, waiting for your bags & clearing customs, you've still got to get all the way into Central Bangkok - it's about 22 miles/35km.
From memory, I think this takes about 45min-1hr on a good run; factoring in rush hour and potential delays due to the red shirts blockades (which are between airport & the train station) and I'd say your chances of making it are pretty slim. If you're going to try it be prepared for a mad dash and probable disappointment. Personally I'd either look to see if there was a convenient Air Asia flight that evening, or book the train for the next day.
Even if you are travelling hand luggage only I still think you are cutting it a bit fine.
#2 ZPeppiatt has been a member since 12/4/2010. Posts: 38
Or get the 10pm train which gets in at 12.45 - you lose about half a day, but at least you'll make the train.
#3 ZPeppiatt has been a member since 12/4/2010. Posts: 38