Elephant QBT Quick Beam Trolleys are heavy duty push type beam trolleys which are compatible with S and W beams, and have capacities ranging from 1 to 10 tons. QBT Beam Trolleys are quick and easy to install and do not need special tools for installation. Their low profile design gives them minimal headroom, maximizing lifting space under the beam. Corrosion resistant stainless steel plungers and double sealed bearings provide a long service life. QBT Quick Beam Trolleys meet or exceed ASME B30.16 regulations. All Elephant Lifting Beam Trolleys are factory load tested at a minimum of 125% of rated capacity.