I bought Ameritherm.  Not the cheapest but I am very happy with it. 

Girish Dahake (Du Hock) is the head technical guy and he is incredible.  Great personality and really knows his stuff.

When i bought the equipment and was trying to understand induction I wanted to buy a couple of coils to experiment.   Sales was hesitant to sell me something that might not work.  I called Girish and he understood that I wanted to experiment.  

We had a couple issue orignally with the new equipment but nothing major.   It has been about 8 or 10 years now with no problems.  It is easy to train people to use the equipment.

We spent the extra money for the remote head and I am glad we did.   

We braze a lot of carbide to steel with torch, ovens and induction. 

We pretin a lot of carbide. We greatly improve our cycle times with induction by putting the carbide on a steel bar.  Induction heats the bar which heats the carbide which heats the braze alloy.  

Feel free to call me with questions. 

Tom Walz
Carbide Processors
800 346-8274