Spiral jack and hydraulic jack are currently the two most widely used types of jacks, each with its own characteristics. So, in terms of safety, which of the two jacks is better? Comparison of safety between spiral jack and hydraulic jack.

Spiral jacks rely on mechanical transmission, with a simple structure and intuitive operation. There are no safety issues caused by hydraulic system failures such as oil circuits and seals. Their load-bearing capacity is stable, and as long as they are used within the rated load range, the safety risk is low. However, the lifting speed of the spiral jack is slow, which may not be suitable for situations that require rapid lifting.

In contrast, hydraulic jacks use liquid pressure for lifting, which is easy to operate and has a fast lifting speed, making them suitable for lifting large heavy objects. High quality hydraulic jacks are usually equipped with safety devices such as overload protection and explosion-proof valves, which can prevent safety accidents caused by misoperation or overload to a certain extent. However, the maintenance and inspection of hydraulic systems are relatively complex, and it is necessary to regularly check the working status of oil circuits, seals, and pumps to ensure their normal operation.

Spiral jacks and hydraulic jacks have their own advantages and disadvantages in terms of safety, and the choice of which type depends on the specific application scenario and operational requirements. Proper use and regular maintenance are key factors in ensuring the safe use of jacks.