This is our best air-cooled coil for the Annie. Duty cycle rates are less than the water-cooled helical coil by about half, but generally you can anneal one cartridge every 5-9 seconds. The Annie Flux Concentrator is available in three different cut sizes. Order the one that is closest to your cartridge neck diameter.
The Litz wire coil may be purchased with or without a ferrite, or it may be bought as a replacement coil.