Types of pistons for hydraulic lifts
Types of pistons for hydraulic lifts
Pistons, also known as cylinders, are basically divided into two categories: conventional (characterized by being single-stage) and telescopic (which have 2 to 4 stages).
On the other hand, the type of traction of conventional pistons is also important; these can be direct traction (1:1) or indirect (2:1).
Single stage pistons
- Single-stage (conventional) pistons are designed for installations such as public or residential buildings, single-family homes, chalets, etc. Depending on the type of installation, the stroke and the load, we will install a direct or indirect draft piston.
Hydraulic timing pistons and mechanical timing
Telescopic pistons, on the other hand, can be hydraulically or mechanically synchronized (via a chain mechanism).
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Hydraulic synchronization
They are very simple pistons visually speaking, since the synchronization operation is internal and is carried out through valves. This type of piston is usually used in special or panoramic installations (very common in shopping centres, for example, in Gran Vía 2 in Barcelona), where the piston is visible.
They are also designed for long journeys, have a maximum of 3 stages and reach up to 25 metres in height.
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Mechanical synchronization
Hydraulic or chain synchronization pistons are visually complex pistons, since they have a whole chain system that allows them to achieve good synchronization between the different stages (maximum 4 stages) ||es/products/ascensor-elevator-car-lpg-vl/" rel="noopener noreferrer">car lift, freight elevator, stretcher lift, etc.
Although the operation of all pistons (conventional and telescopic) is similar (they work thanks to the pressure of the fluid that causes them to rise or fall), their application is completely different. The image shows the main physical differences of each type of piston.
9 comments
Hello good!
I'm David, I'm designing a forklift, specifically a double mast indirect action car lift.
The distance between plants is 5 meters, so the piston travel must be 2.5 m.
I have a problem, I can't find any website, catalogue or manufacturer where conventional 1-stage pistons of these dimensions are listed.
I would appreciate it if anyone knows of a manufacturer or a link where I can see the features, prices, etc.
Greetings and thanks.
Good morning David,
In our Product Catalog you can consult the technical specifications of a wide range of single-stage pistons. To access the catalog you only need to register (free of charge) and you will be able to download all the content you need.
As regards prices, you should contact GMV's Sales Department, where they will provide you with this type of information. You can do so via comercial@es.gmvgrupo.com .
Greetings,
DEAR SIRS.
I AM WRITING TO YOU FROM NICARAGUA TO ASK YOU TO PROVIDE ME WITH A RETAINER KIT FOR A GMV PISTON. IT IS AN INDIRECT TRACTION PISTON. WHAT INFORMATION DO YOU NEED IN ORDER TO PURCHASE THE KIT?
THANK YOU VERY MUCH IN ADVANCE.
Good day.
We are requiring a multi-stage hydraulic piston for the design of a hydraulic lift. The cylinder stroke is 5.0 meters. It should be 3 or 4 stages, telescopic. The load to be moved is 500-600 kg.
I look forward to your response.