Mechanical jacks and hydraulic jacks are the two most well-known types of jacks, and there is often a discussion about which one is better to use. Crown Aviation has analyzed their working principles and advantages and disadvantages.

Mechanical Jack: Most mechanical jacks use spiral worms to lift and lower the load-bearing table, which is a manually operated tool. Its advantages are simple structure, convenient use, no need for external energy, and suitable for some simple lifting needs. The disadvantages are also quite obvious. The lifting efficiency is low, requiring a large amount of manpower investment, and is not suitable for situations with large load-bearing capacity or requiring rapid lifting.

Hydraulic jack: Hydraulic jack uses liquid pressure to achieve lifting, usually provided by manual or electric pumps. Its advantages are high lifting efficiency, easy handling of large load capacity, and relatively easy operation, reducing labor input. The disadvantage is that compared to mechanical jacks, they are usually more expensive and require a hydraulic source (manual pump or electric pump) to provide power.

Overall, the advantages and disadvantages of the two jacks are quite obvious, and we mainly make corresponding choices based on different usage scenarios and needs. If you need to lift a larger load or require efficient lifting operations, hydraulic jacks may be more suitable. But if it is only occasionally necessary to lift a smaller load and the budget is limited, a mechanical jack may be sufficient to meet the requirements.