In large-scale machine tool installation projects, the levelness and elevation accuracy of the equipment base directly determine the machining accuracy of the machine tool, and the screw jack, with its precise control ability, has become the core tool for achieving micrometer level leveling.

Large machine tools often weigh tens of tons, and the installation of the base must meet strict standards of horizontal deviation less than 0.02mm/m and elevation error control within ± 0.05mm. A single screw jack can convert rotational motion into linear lifting and lowering through precise meshing of the worm and nut, with an adjustment accuracy of up to 0.01mm. In practical operation, technicians will arrange multiple jacks at key support points based on the force distribution of the machine tool base, and monitor the data in real time through a dial gauge and a level to synchronously adjust the lifting amount of each jack.

During installation, first use a jack to lift the base to the design elevation, and then use a level to check the levelness of the plane. Adjust the corresponding jack according to the deviation area. For example, in the installation of machining centers, a coordination mode of "three-point positioning and multi-point assistance" is often used. Three main jacks are used to stabilize the load-bearing capacity, while the remaining jacks assist in correcting local deviations, ultimately achieving micrometer level precision calibration of the entire base.

This coordinated leveling method not only avoids the tedious and repetitive adjustment of traditional pad iron, but also adapts to the compensation of trace settlement during machine tool operation. Nowadays, screw jacks have become a standard tool for equipment installation in high-precision manufacturing fields such as aerospace and heavy machinery, laying a solid foundation of accuracy for the stable operation of high-end equipment.