We get asked this question a lot, unfortunately its very hard to answer. Every offer is different, traffic volume varies massively from one offer to the next. If your offer has a good competitive payout compared to similar offers on the network and converts highly - then the chances are affiliates will pick it up and you will get big volume.
Whilst that isn't an exact number - we can tell you that we have over 10,000 affiliates. Some of these affiliates have websites with huge volume coming in every day and we have some big email marketers on the network.
To give you an idea on the sort of volume our network of affiliates can deliver, in one month we delivered over 7,000 conversions to one offer in 24 hours.