sg
sg
Industry News & Trends Products & Services
A hydraulic jack is an essential tool for heavy lifting which utilises the power of hydraulic fluid or oil to lift heavy loads.
The mechanism of applied force involved differs depending on the type of jack but typically involves two cylinders of different sizes connected to a pipe.
There are two common types of hydraulic jacks which consist of bottle jacks and trolley jacks.
Bottle jacks also known as hand jacks are widely used by individuals to lift a heavy load with lifting capabilities from 2 tons to several tonnes.
With the help of a vertical shaft, this hydraulic jack supports a bearing pad that holds the weight of the load during the lifting process.
The lifting process started by pumping hydraulic fluid into its chamber, causing a rise of the piston which exerts force to the bearing pad.
Unlike bottle jack, trolley jack which is also known as hydraulic floor jack operates horizontally. It pushes a crank that connects to a lifting pad which is then lifted vertically.
This hydraulic floor jack provides a greater range of vertical lift as compared to bottle jacks, but it only offers a fraction of the weight bottle jacks can lift.
The working principle of hydraulic jacks involves the use of hydraulic fluid and Pascal's law to create pressure within a confined space.
This in turn lifts heavy loads through the movement of a piston inside a hydraulic cylinder.
Hydraulic jacks provide a mechanical advantage for lifting heavy objects with the help of several components which consist of:
Hydraulic Cylinder: A hollow cylindrical tube that houses a piston.
Piston: Moves vertically in response to hydraulic pressure.
Pump: Generate hydraulic pressure by pumping the fluid into the cylinder.
Hydraulic fluid: Specially formulated fluid that transmits pressure.
Release Valve: A valve that controls the release of hydraulic pressure to lower the piston and subsequently, the load.
Lifting Arm or Saddle: Designed to hold the load securely and distribute force evenly.
Similar to any mechanical system, the hydraulic jack requires maintenance and repair from time to time. Here are the signs indicating your hydraulic jack is due for it:
Slower operation time. This may indicate an underlying issue especially if there is a noticeable decrease in the operation speed. Problems may range from worn-out components to leaks or drops in the hydraulic fluid pressure.
Reduced output of force from the hydraulic cylinder. A significant reduction in the force output may signal damaged pistons or internal leaks which might tamper with your productivity.
Temperature fluctuation in the system. Excessive heat or inconsistent temperatures of the hydraulic fluid are a sign of a cooling system problem, control valve or wear and tear.
Some basic maintenance practices for hydraulic jacks include:
Regular inspection for any signs of wear, leakage or damage.
Cleaning hydraulic jacks from contaminants that can affect their performance.
Inspecting seals and making replacements when needed to prevent leaks and maintain pressure.
Replacing hydraulic fluid periodically and according to the manufacturer's recommendations.
Change the hydraulic jack oil periodically. A recommended duration according to carparts.com is to bleed and change the jack's oil once a year.
In conclusion, a good practice of repair and maintenance routine is imperative for your hydraulic jacks.
It ensures a safe and reliable operation which contributes to optimal performance, making the lifting of heavy loads easy and efficient.
While adhering to these practices is crucial for the upkeep of your jacks, there are instances where professional help becomes indispensable for more complex issues.
This is where SLS Bearings can help you with our expertise, and where you can benefit from our comprehensive machine maintenance and optimisation services from our team of experts in SLSPRO.
If you're looking for the right hydraulic jack for your applications, you can also browse our products from our website.
Get in touch with us for professional help and greater operational efficiency!
High-quality industrial tools for efficient and reliable performance in construction, manufacturing, automotive, aerospace, and more.
Find Out More
High-quality industrial tools for efficient and reliable performance in construction, manufacturing, automotive, aerospace, and more.
Find Out More
Contact Us