I don't get what the weight does or has on these tumblers. The one I have the basket is oscillated on rubber cushions. All the motor does is spinning an offset weight to make the basket oscillate. The motor is on its own and knows nothing about the weight in the basket.
Yes, the "basket" sits on springs/rubber cushions. But even on a medium size machine (20 cubic foot) the steel media weighs 6,000 lbs. So the media in the machine weighs as much as 2 cars. It takes a lot of power to shake that back and forth 1,200 times per minute.
Yes, the motor is on it's own and attached to nothing else. But it does know about the weight in the basket. Also the machine must be built a lot stronger to handle the horsepower necessary.
