Friends who often follow the official website of Guanhang Jack are familiar with the types, usage methods, and working principles of jacks. Taking the screw jack and hydraulic jack that we often talk about as examples, the two types of jacks have completely different characteristics and can be said to have their own strengths. The strength of the screw jack lies in its heavy load capacity and strong pressure holding ability. Hydraulic jacks are highly efficient and easy to use.

Today we will focus on the reasons why the efficiency of a screw jack is not as good as that of a hydraulic jack. Of course, the load is one aspect, and the load naturally faces a slow start, but the biggest reason is its return speed. The return speed of a screw jack is very different from that of a hydraulic jack. A hydraulic jack can push hydraulic oil back to the storage tank through the pressure of heavy objects. In other words, the operator only needs to turn the oil discharge valve, and the hydraulic jack can automatically return, saving time and effort.

However, the screw jack is different. Due to the use of the screw pair transmission principle, the screw jack is lifted by rotating around the screw thread, so it cannot achieve fast automatic return. After the work is completed, when the jack needs to be lowered, the supporting teeth need to be adjusted to the opposite direction, the handle should be inserted into the rocker hole, and the handle should be moved up and down back and forth, and the heavy object will start to descend. The entire process takes much more time than a hydraulic jack.

As the saying goes, 'Even if you fail, it will be bleak; if you succeed, it will be bleak.'. The screw jack also relies on a steady return speed to ensure its safety during operation, because the weight borne by the screw jack itself is already large. Therefore, a uniform and slow return speed can ensure that it always bears equal force, making the use of the screw jack safer.