Economy, Double Arm Mixer, 25 gallon working capacity, Spiral blades, Jacketed bowl, 18" x 26.5" x 22" deep + 6" riser, Hydraulic tilt. Category: Double/single Arm Mixers and Blenders. Seller: Ingalls Process Equipment. Location: Painesville, OH. Mfr: Economy. one (1) used 50 gallon Economy Double Arm Mixer.