When it comes to hydraulic jack seals, the public often first thinks of hydraulic jacks. The hydraulic system of hydraulic jacks relies on the tight protection of seals to effectively prevent hydraulic oil leakage and ensure stable operation of the equipment. However, seals are not exclusive to hydraulic jacks, and screw jacks cannot do without their "protection".

Spiral jacks use seals not to prevent hydraulic oil leakage, but to resist the invasion of external impurities. This functional positioning is fundamentally different from the role of hydraulic jack seals.

Although the screw jack does not involve the transmission of hydraulic oil, the precise internal components such as gears and screws work together to form a complex mechanical transmission system. Once dust, debris, and other impurities invade, these fine particles will intensify the friction and wear between mechanical components, interfere with the normal operation of the parts, not only affect the performance, but also greatly shorten the service life of the screw jack.

Although the working principle of a screw jack is completely different from that of a hydraulic jack, the presence of its seals is equally indispensable. Seals are like sturdy 'protective shields', isolating external pollutants and providing reliable protection for internal precision structures, ensuring that the screw jack can operate stably and efficiently for a long time.