Hydraulic Elevators Hydraulic elevators are generally built and erected as passenger, freight, vehicle and panoramic elevator with one or double piston depending on the load carrying capacity at places where elevators with machine room cannot be built. This type of elevators offer perfect leveling with the floor owing to their automatic leveling feature, are slow moving, but offer comfortable travel. Elevator Types Passenger Elevators Freight Elevators Bed Elevators Panoramic Elevators