Wow! That is a machine that I have never seen before! Now that is one really heavy duty vibrator. Something I have done to achieve intense internal vibrations is to use a heavy steel anal/vaginal hook with balls on the hook and and tied to the ceiling or rafters. Then use a really heavy duty concrete drill bit with a square shaft in an electric drill. Hold this against the heavy steel hook and just speed up or slow down the drill speed as required and enjoy listening to your subs screams of unbearable extasy mixed with pleas to stop when they can't take any more. Real industrial level vibrations!!! 🤯 Enjoy!