Where space is at a premium this shaker may be the answer. Requires only 12 inches width and 16 inches depth. Speed is continuously variable from 20 to 240 excursions per minute. Stroke is adjustable from 1/2 inch to 1-1/2 inch in 1/2 inch intervals. Maximum load is 30 pounds. Includes 12 inch x 14 inch aluminum platform with 168 mounting holes for flask holders. For 110V, 50/60 Hz.