Everything You Need to Know About Hydraulic Elevators

hydraulic lifts

Whether you are installing a new system or are curious about how your existing machine works, here is everything you need to know about hydraulic lifts.

What is a Hydraulic Elevators?

There are two main types of elevator systems: traction and hydraulic.
Traction elevators use steel cables or belts on pulley systems. Hydraulic lifts are power by hydraulic cylinders, which are fluid-driven pistons that move inside the cylinder.

How does a Hydraulic Elevators work?

Unlike traction elevators, hydraulic systems do not use aerial work equipment. Instead, these elevators use fluid compression to generate motion. The elevator car is lift by a motor that pumps oil into the cylinder to move the piston. The hydraulic lift also integrates electric valves to control the release of oil for smooth driving. The fluid require to provide the hydraulic lift must be oil-based. Vegetable or biodegradable oils can be use as environmentally friendly options.

Hydraulic Lift

What type of building uses a Hydraulic Elevators?

Hydraulic elevators can be found in almost all types of buildings. However, two factors limit the height at which they can travel.
Hydraulic elevators require a lot of energy to lift the car, which is why hydraulic elevators are often not found in high-rise buildings. These systems also operate at 150 FPM. Or less, which makes them slower than other types of elevators.
Because of these factors, hydraulic elevators are only suitable for seven-story buildings.

What are the types of Hydraulic Elevators?

Not all hydraulic lifts are the same! There are many variations that can make each system unique.

Drilling Hydraulic Elevators

For this type of elevator, the hydraulic cylinder extends into the ground and is place in the borehole. The elevator car is mounted on a piston that moves inside the cylinder and can move up to 60 ‘.

Drilling Hydraulic Elevators

 

Hydraulic without holes

Since drilling is not require, existing buildings or areas without drilling can benefit from hydraulic lifts without holes. However, these models are not suitable for trips longer than 40 feet.

Wired hydraulic

Hydraulic cable lifts use cables and pistons attached to pulleys to extend the lift of the hydraulic lift without holes. Because the rope is fix to the elevator car, a speed governor is required. These models are suitable for 60-foot travel.

wired elevators

Hydraulic system without machine compartment

In elevators without a machine room, the hydraulic lifting mechanism is located in the lifting path, rather than in a separate machine room. This maximizes the space available in the building.

What are the advantages of hydraulic lifts?

For many types of buildings, hydraulic elevators have the following advantages:
Installs faster than other types of elevators
Lower installation and maintenance costs, ideal for transporting heavy loads
Take up less space in the building
Possibility of no equipment room configuration

What are the disadvantages of hydraulic lifts?

Even with these benefits, there are still factors that may not make a hydraulic system the right choice for some applications:
Only for low-rise buildings
Can only fly up to 150 FPM.
Higher power than traction elevator
May be noisier than other systems

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