When planning to install a new elevator in a building, whether residential, commercial, or even a private villa, the owner or engineer faces a crucial choice: should they choose an electric or hydraulic elevator? Each type has its own advantages and challenges, and choosing the most appropriate one depends on the building's needs and user expectations.
What is an elevator?
An elevator is powered by an electric motor that raises the cabin using steel ropes rotating around a pulley (sheave). It is often installed in medium- or high-rise buildings due to its speed and efficiency.
Advantages of the electric elevator:
● High speed, up to more than 3 m/s in towers.
● Energy efficiency, especially with permanent magnet motors (PMSM).
● No huge engine room required (especially in MRL - machine roomless elevators).
● Suitable for buildings that require heavy traffic between floors.
Its disadvantages:
● Initial installation cost is higher.
● It requires a shaft of a certain depth, which may not be suitable for some old buildings.
What is a hydraulic elevator?
A hydraulic elevator relies on oil pressure inside a cylinder to propel the cabin upward, and then lowers it by gravity as the oil is released. It is typically used in low-rise buildings (up to 5 floors).
Advantages of hydraulic elevator:
● Lower installation cost compared to electrician.
● It does not require an engine room above the well, making it easy to install in buildings with low ceilings.
● High lifting force makes it ideal for heavy lifts (goods or cars).
Its disadvantages:
● Limited speed (usually not exceeding 1 m/s).
● Higher energy consumption, especially when climbing.
● It requires periodic maintenance of the oil system and avoiding leakage.
How do you choose the best one for your building?
● If the building has more than 5 floors: It is preferable to choose an elevator, due to its speed and efficiency.
● For villas and low-rise buildings: A hydraulic elevator is an economical and practical option.
● If the goal is to save space: Modern machine room-less (MRL) elevators provide the best solution.
● When loading heavy goods: Hydraulic elevators have superior lifting power.
a summary:
Both types of elevators play an important role in facilitating movement within buildings, and the choice between them depends on factors such as the number of floors, available space, budget, and speed requirements.
Consulting with a specialized elevator company, such as Primo or others, can help you determine the best option that combines safety, efficiency, and affordability.
Read also: Elevator tensioners: the essential element for safe and smooth movement
