Only when a person is placed in the appropriate position can they better exert their abilities, and the screw jack must also be placed in the appropriate position to better exert its lifting ability. Don't underestimate this placement process, improper placement can seriously affect the lifting effect and cause serious damage to the jack itself.

The correct placement principles of jacks mainly include the following:

1. The placement should be flat and not skewed, and ensure that the lifting sleeve is perpendicular to the ground to prevent the screw from bending due to excessive pressure from the jack bearing heavy objects;

2. It should be placed on a hard and sturdy ground, such as hard wood, stones, steel plates, etc. It should never be placed on soft ground, otherwise it will affect the normal lifting operation due to slipping or insufficient jacking force;

3. It should be placed in the center of the bottom of the heavy object as much as possible, rather than on the lower side, so as to ensure that the heavy object remains stable on the top of the jack at all times and will not tilt or fall off.

In short, correctly placing a screw jack can achieve twice the result with half the effort. Incorrect placement not only damages the safety of heavy objects, but also causes damage to the jack.