Elevators and Escalators

Hydraulic Elevators
are supported by a piston at the bottom of the elevator that pushes the elevator up as an electric motor forces oil or another hydraulic fluid into the piston.

Traction Elevators


lifted by ropes, which pass over a wheel attached to an electric motor above the elevator shaft.

Machine-Room-Less Elevators
lifted by ropes, which pass over a wheel attached to an electric motor above the elevator shaft. The machine sits in the override space and is accessed from the top of the elevator cab when maintenance or repairs are required. The control boxes are located in a control room that is adjacent to the elevator shaft on the highest landing and within around 150 feet of the machine.

Escalators
Are moving stairs where the tread moves on a track at an incline or decline to transport people from one floor to another.

Access Ladder
Ship ladders are a hybrid. Part stair and part ladder, they make vertical circulation more comfortable in mechanical or service spaces. Ship ladders are generally preferred to normal ladders since they are more like stairs.