Speed 500-2500 U/min, Orbit 4,9 mm, Timer 1sec bis 160 h, Intermittent or pulse duty, Dimensions 21,1x12,2x16,5. Touch mode operation activates mixing when depressing the cup head or continuous mode for use with accessory attachments. Sturdy, rugged design ensures the unit stays in place while in use. Robust digital and non-digital Vortex Mixers offer effective speed control from low RPM start-up for gentle shaking to high-speed mixing for vigorous vortexing of samples. The Fixed Speed Vortex Mixer is an economical choice for vigorous mixing of samples at high speed. To ease repetitive sample processing, this unit provides simple, effective full-speed mixing. Choose the Perfect Vortex Mixer From Four Durable Models for Everyday Mixing