CAMINIX  QM580 Ball Valve Grinding Machine is designed to grind the balls from 8''-16''. 

It can grind various kinds materials of the balls , including carbon steel,stainless steel, alloy steel and so on( see below) 

Base material: ASTM A105,A350 LF2,A182 F304,A182 F316,A182 F51,A182 F53,A182 F55,A564 630(17--4PH) Monel,Inconel

Coating: ENP,chrome Plating,Tungsten Carbide,Chrome,Carbide,Stellite,Inconel etc. 

This QM580 cnc ball grinding machine is now installed in USA ball valve factory.