4 ton hydraulic porta power in iron box packing

The split jack is the separation of the oil chamber and the jack. The oiling chamber is generally divided into pneumatic oiling and manual oil. Pneumatic oiling is driven by a pneumatic pump to drive the piston rod. Manually uses the principle of lever to make the piston move. The jack head is separated from the oil chamber, and there is an oil pipe in the middle. The top is actually an oil chamber plus a piston. The piston is actually the oil chamber filled with oil, and the piston rises. https://www.omglift.com/porta-po...-porta-power-jack-4.html