This model is suitable for diameter 3 meter dish head polihsing, conical head polishing, spherical head polishing, torispherical head polishing, pressure head polishing, deformed head polishing, stainless steel elliptical head polishing, pressure vessel head polishing and stainless steel sealing head inside & outside polishing. The head polishing machine is extensive apply for the polishing of work piece in the range of medical, chemical, environmental purification, food and beverage, water filtration, etc. http://www.jotunmachinery.com/cnc-polishing-machine/dish-head-polishing-machine-3.html