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Spiral jack precise lifting of heavy objects precise alignment

Time:2025-10-15 Author:gh-jacks

Spiral jacks, with their unique structural advantages, have become powerful tools for precision adjustment in industrial assembly, equipment calibration, and other precision settings. Its core charm lies in the strict proportional relationship between the lifting height and the number of rotations of the handle, providing reliable guarantee for precise control at millimeter and even sub millimeter levels.

The precise characteristics of the screw jack stem from its mechanical structure principle. It achieves force conversion through the meshing transmission of the screw and nut. With each rotation of the handle, the distance the screw rises is fixed equal to the pitch. The determinacy of this mechanical transmission allows the operator to accurately calculate and control the lifting height by simply controlling the number of rotations of the handle, completely eliminating the "soft landing" errors that may occur with hydraulic jacks and other equipment, and achieving precise positioning of "where to point".

When installing the mold, the positioning holes of the upper and lower molds need to be accurately aligned, with an error controlled within 0.1 millimeters. The operator can achieve micrometer level fine-tuning by slowly rotating the handle and monitoring with a dial gauge; In the maintenance of precision instruments, when adjusting the horizontal height of the optical components, the screw jack can avoid the component offset caused by uneven force, and ensure the measurement accuracy of the equipment.

From engine cylinder assembly in automobile manufacturing to component calibration in aerospace, screw jacks have become an indispensable "micro controller" in modern industrial production due to their irreplaceable precision control capabilities, providing stable and reliable technical support for high-precision operations.



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