Home Products › Forums › Ask the Engineer › Private: Item 91134 › Reply To: Private: Item 91134 February 23, 2019 at 1:09 pm #48444 Roton EngineeringKeymaster How fast do you want to move the 50,000 lbs. load? (Steve Lochmoeller) This reply was modified 4 years, 9 months ago by Roton Engineering.