About the only option for AC 1 phase is a Universal motor and Triac controller, but I would not recommend it as a first choice.
The better bet would maybe look for a suitable fairly high grade DC motor or a servo motor and use a KB or Baldor SCR drive, these operate across either 120vac or 240vac 1 phase in for either a 90vdc or 180vdc motor.
The motor controllers are cheap on ebay, or even new if the open chassis style as these can be installed in your own enclosure and save a few $'s.
The set up in the link looks reasonably priced.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.