I would believe there is a real need to see automated profiling capability on lower end hot air units. It's a given with IR stations in the $300 range from China, But to my knowledge, there isn't a complete preheat/hot air integrated station solution like Weller,OK, or Hakko have had. I don't see the need for an IR station or the footprint/separate power circuit that goes along with such a station, I'm not reballing computers or game consoles with the need for a large worksurface, just the occasionall, small BGA that one finds on smaller consumer and commercial equipment that a hot air station would be enough.
Sunko, Aoyue/Blackjack and some other preheaters that do have a primative preprogrammed warming cycle using accessory thermocouple probes. The top end Aoyue and Sunko have the ability to store a single hot air profile for reflow ramp up,reflow,and cooldown. None of these operate as an automated and intergrated system like for example Weller's and
Hakko's little stations do.
If these Chinese companies can impliment 5 step PID preheat,reflow,and cooldown cycle control as part of their IR products, there's no reason the hot air products can't. The game boards are full of empiracally arrived time/temperature profiles that have to be monitorored and physically adjusted, so there is a demand. Most all the newer multi feature stations use pic PID controllers. Interconnectivity of their companion preheaters would be a no brainer and would guarantee companion sales of thier own products. Typical prices of the two larger Aoyue/Blackjack preheaters such as the 863,883 with profiling is well over USD$250. Hot air stations with the profile cabability; 270x types are USD$275; about $100 over the more advanced Hakko derivative clones like the 968 and 852 series.
Surely they could incorporate and umbilcle cord solution like Hakko or Weller with little effort if they can do it with their all-in-one IR stations.