We all know the basic function of an elevator, which is to move people between the floors of a relativity tall building. Elisha Otis’ safety design, which secured the car and prevented it from falling, made them a big hit and in this day and age, elevators are commonplace worldwide. There are three types of elevators and in this blog series, we’re going to go over each one. First, let’s start with the hydraulic lift…
These are elevators which are supported by a piston at the bottom of the elevator. It serves to push the lift up whilst an electric motor simultaneously forces oil into the piston; the elevator will lower a valve that releases this fluid from the piston. Hydraulic elevators are used in buildings with 2-8 stories and can travel at an average speed of 200 feet per minute.
Conventional Hydraulic Elevators: These have a sheave, also known as a pulley, that tends to extend below the floor of an elevator pit. This pulley will accept the retracting piston as the elevator descends. Different types of this elevator will have what is known as a telescoping piston which collapses, requiring a shallower hole.
Hole-less Hydraulic Elevators: This variation has a piston on either side of the car fixed at the base of the pit. They do not need a sheave or a hole below like the conventional configuration and allow up to about 50 feet of travel.
Roped Hydraulic Elevators: Using a combination of different ropes and pistons in order to move the elevator, these types of hydraulic elevators can travel a minimum distance of roughly 60 feet.
Overall, hydraulic elevators tends to be less pricey than other types of elevators. In fact, they have a reputation for being fairly low maintenance. If you’d like to know more, get in contact with the best lift company around today!