There are many specifications for screw jacks, ranging from 3.2 tons to 200 tons, divided into various sizes according to the load capacity. Among them, there are a few specifications with the same load capacity but different body heights: standard and low-profile models. The low-profile model has a lower self-height and lifting height, making it suitable for use in narrow spaces with limited access. Therefore, when choosing a jack, one should not only consider the tonnage of the load but also the space available. Screw jacks are mechanical devices, so they do not leak oil or lose pressure. As a result, their lifting direction is not restricted; they can be used horizontally, vertically, or even upside down.