Variable-Speed Mid-Range Reciprocal Shaker is designed for your general purpose shaking needs. Designed for ease of use and maintenance. This heavy-duty unit operates in a space of 33-1/2" x 20" and is powered by a 1/6 hp GE split phase motor which drives the platform through a mechanical transmission utilizing a variable pitch pulley system incorporating a V-belt drive. Speed control is continuously variable between a range of 60-260 osc/minute. However, at a given setting the speed is constant, and is not affected by normal line voltage fluctuations. The horizontal stroke is fixed at 1½", and the unit has a max load carrying capacity of 50 lbs. Available accessories include flask holders, separatory funnel holders and utility box carriers. Unit complete as described but without carrier plates or holders.