The difference between Hydraulic and Traction Lifts
- hristinaichevska
- Oct 9, 2018
- 1 min read
Updated: Apr 9, 2019
The main difference between the hydraulic and traction lifts is the transportation system of the cab.
Hydraulic Lifts
The Hydraulic Lifts work on the principle of an electrically powered pump that pushes pressurized hydraulic fluid or oil to a jack lifting system. A piston within a cylinder at the base of the elevator pushes the car up and down. The advantages of the Hydraulic Lifts are that they are cheaper to be installed compared to Traction Lift, take up less space, more effective than the others in the transportation of heavy loads.
Traction Lifts
Elevator cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Both of them are intended to balance each other out which means that only a small amount of power is needed to move the lift car up and down. When the lift car goes up, the counterweight goes down and vice versa. The lift is moved using a motor connected to the sheave. Traction lifts require a machine room at the top of the lift shaft. The advantage of the Traction Lift is that it uses less energy and also the new Traction Lifts are quicker compared to Hydraulic Lift.
These are the common use type of lifts in both residential and office building.
When consider what type of lift to be installed, the choice depends on the type of the building and where the lift will be placed, cost and maintenance.
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