Features Of Hydraulic Lifting Jack

1. The use of new-type seals enables the sealing strength of the seals to be strengthened simultaneously when the cylinder is under high pressure.

2. The use of special alloy steel cylinder material with heat treatment technology reduces the expansion ratio of the cylinder during the tensioning process, and increases the life and sealing performance of the seal by about 20%.

3. Aiming at the problem that the jack is easy to damage the jack due to the super high pressure in the return stroke of the jack during the tensioning operation, an overpressure protection valve is added to the jack for pressure relief protection; at the same time, the original commonly used models adopt the wire reel type and the flange type structure Improvements have been made to strengthen the jack's ability to withstand the return oil pressure, which greatly reduces the possibility of jack damage due to improper operation.