The Renold Ajax RKBM and RKBC series is the most economical motor vibrator drive available in the North American market today. No other electric vibrator motor delivers more value and quality per pound of force output. Our full line consists of models operating at frequencies of 900, 1200, 1800 and 3600 RPM. Eccentric weights can be manually adjusted to vary the centrifugal force from 0 through 100%. A suitable model can be supplied for most any type application or environment, and are rated for continuous operation.