Aircraft maintenance hydraulic jacks are critical ground support equipment (GSE). The complete system consists of custom hydraulic cylinders and hydraulic power units, widely used for landing gear replacement, tire service, aircraft weighing and full-aircraft jacking for commercial jets, business jets and helicopters.

The reasons for the presence of gas in the hydraulic cylinder might include the following:1. Excessive gas content in the oil: The excessive gas content in the oil is one of the main causes of gas formation inside the cylinder. Common sources of gas in the oil include the introduction of a large amount of air during the transportation or refueling of the oil, or the air generated when the oil is pumped into the tank.

Vehicle hydraulic cylinders, as the core executive components of various engineering vehicle hydraulic systems, possess advantages such as strong bearing capacity, smooth operation, wide adaptability, and high controllable precision.