For dry sieving. With electromagnetic drive. Vertical and horizontal, quiet vibrating action. With digital control of 0 to 99 hour 59 minute times and vibration amplitude, separate intermittent or continuous vibration selection, on/off switch and quick release clamping device for sieves. The Octagon 200CL model additionally has closed-loop amplitude control for accuracy and an RS232 interface for control of evaluation of sieving on the user’s PC using accessory “Sieveware” software. Without sieves.