Dutchman, not unexpectedly, got that one! Pinfari builds the Zyklon coaster in a variety of sizes; they also have a couple of other portable coaster designs including the ZL-42 "Looping Star."
The Galaxie is another Italian coaster, similar to one of the Zyklon designs, but built by (now defunct) SDC srl. SDC also builds...er built...the Windstorm coaster. But the catch is that the Windstorm was licensed to Premier Rides, then Zamperla bought SDC.
Anyway, if you're looking at a coaster and you can't tell whether it's a Zyklon or a Galaxi, take a look at the lift chain. If it looks like a standard lift chain, it's probably a Zyklon. If the chain has a couple of pins sticking out from the sides of the chain links, you're probably looking at a Galaxie.
--Dave Althoff, Jr.