Hydraulic jacks are mechanical devices which are used to lift heavy loads or apply excellent forces using hydraulic fluid as the main source of power. Using hydraulic power, the jacks have the ability to supply more lift over larger distances. Hydraulic jack (which is also known as “แจ็คไฮโดรลิค” in Thai language) is commonly used in automotive, industrial and construction use.
The hydraulic fluid which is incompressible is forced into the cylinder of the jack using a pump plunger. Oil is used because of its stable and self-lubricating nature. After the plunger pulls back, oil is drawn from the reservoir and it goes in the pump chamber.
When the plunger goes forward, the oil is pushed back into the cylinder. This oil movement builds up pressure in the cylinder. And it's this pressure which contributes to the functioning of the hydraulic jack.
Bottle jack and the floor jack. The bottle jack as its name implies is a mobile jack, where the piston is in a vertical position and it supports a bearing pad. This type of jack is suitable to be used in vehicles.
For lifting heavier objects or structures such as homes, there is need for interconnection of multiple vertical jacks in a way that is hydraulic. In a floor hydraulic jack, the piston is in a horizontal piston and there is a long arm which provides the vertical movement to a lifting pad. Hydraulic puller (which is also known as “เครื่องดึงไฮดรอลิค” in Thai language) is suitable to be used in vehicles.
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