We all know that hydraulic jacks are convenient and lightweight when used, but they are actually a simple lifting equipment. In addition to hydraulic jacks, the cranes we usually see on the road are actually a kind of lifting equipment, but the structure of the crane is more complicated, and it has enough strength to lift objects heavier than itself.

The most obvious difference between a hydraulic jack and a crane is that it is only composed of an ordinary crane structure, so it looks very simple and lightweight. Since the hydraulic jack has so many advantages, is its quality guaranteed? Some users experience hydraulic oil leakage during use. Why does this happen?

What is hydraulic oil? It is the power source of the hydraulic jack. The hydraulic jacks we see are generally closed, and the hydraulic oil cannot be seen, so because the hydraulic oil pump is inside. If there is a leak, we must first understand whether the seal is selected correctly, and see whether the hydraulic system design of the hydraulic jack is reasonable.

After all, the hydraulic oil is a liquid, and a slight gap will flow out. In addition to the sealing quality is not good enough, if the hydraulic oil is contaminated by external dust and debris, there will be leakage, because it prevents the hydraulic oil from being contaminated by the debris, or the sealing system is damaged and leaking. Under normal circumstances, the manufacturer will provide supporting equipment. Dust sealing device.

In addition, the quality of the raw materials used to manufacture the hydraulic jack is qualified. The air in the hydraulic oil will generate bubbles, and the air pressure in the oil pump will become larger and larger, which is very likely to cause the oil pump to burst. If the hydraulic jack is used for too long, there will be many cracks and damages on the surface, and at the same time, the aging degree will continue to deepen, resulting in hydraulic oil leakage.