Charles Ross & Son Co. manufactures ribbon blenders used in the process industries for rapid, thorough and dust-free blending of powders, granules, pellets and other bulk solids. The model 42N-270 has a maximum working capacity of 270 cu.ft. and a full holding capacity of 300 cu.ft. The gasketed three-piece cover, safety grating and pneumatically operated 10" knife gate valve are all designed to facilitate convenient ingredient charging and dust-tight operation. The solid agitator shaft is driven to 20 rpm by a 100 HP TEFC motor.