Check out this brand new Rotary Tumbler from Foredom!
It has programmable controls and a digital speed display for repeatable cycles. You can set the timer, choose the direction of the rotation, and select from 20 levels of speed control ranging from 5 to 100 rpm. An average work cycle duration is 180 minutes long. It's also universal voltage (100-240 volt)!
Shop at the link below -
bit.ly/2ZDA4kd