Groen Stainless Steel Kettle-80 Gallon . Model: RA-80. Single agitator. Drive speed: 36 RPM. The RA-80 is a stationary processing unit fitted with a 2/3 jacket to provide fast heating and or cooling of the hemispherical bottom. The single agitator is driven by an enclosed, fan cooled, single speed motor mounted to an oil-filled gear case. The kettle features a number 4 interior finish with a semi-deluxe buff finish provided for the exterior surface.