Processing Magazine

Rapid, Dust-free Blending of Powders

January 13, 2014

Charles Ross Ribbon BlendersRoss manufactures Ribbon Blenders used in the process industries for rapid, thorough and dust-free blending of powders, granules, pellets and other bulk solids. Available in many standard sizes from 1/2 to 1,000 cu. ft. working capacity, Ross Ribbon Blenders are built for a wide range of bulk densities and applications with many customizable features to meet any special, sanitary or heavy-duty requirements.

Shown is a Ribbon Blender Model 42N-270 with a maximum working capacity of 270 cu.ft. and a full holding capacity of 300 cu.ft. The stainless steel wetted parts are polished to 150-grit finish for easy cleanability. The gasketed three-piece cover, safety grating and pneumatically operated 10-inch knife gate valve are all designed to facilitate convenient ingredient charging and dust-tight operation. The double ribbon agitator is precisely fabricated to produce a well-balanced axial and radial flow of powders while holding tightly-controlled clearances between the trough. The solid agitator shaft is driven to 20 rpm by a 100 HP TEFC motor.