When I attended the Visiting Delegation of Guangdong Laser Industry Association to Europe In Jun. I met an old partner who specialized in sheet metal RF marking machine at present and used to adopt S&A thermolysis type water cooler CW-3000.
It is so glad to meet him again. Now he says he has been using multiple band 200W RF tube such as Rofin, Synrad and Coherent and hope we can recommend fit chiller for above RF tube.
We recommend S&A chiller CW-6200.
After the Europe trip, he purchases 10 units of refrigerating water chillers cw-6200 to cool 200W metal RF tube.
Chiller CW-6200 technical parameter:http://www.teyuchiller.com/Products/ChillerCW62005100Wco.html