Sets of cylinder aerial vehicles is a versatile high-altitude operating machinery, its function will contain the platform of the operating personnel and equipment to the designated height in special air operations engineering equipment. This device is widely used in mining workshop, tenance, warehouses, railway stations, squares and other high-altitude operations. The whole platform, telescopic cylinder, single-staircase or ladder anti-rotation body, chassis fuel tank, legs, walking round. Platform telescopic cylinder direct lifting, when starting the motor, the motor-driven gear pump oil, oil through the check valve and solenoid channel input cylinder, telescopic cylinder rising, section by section, when the platform to rise to a maximum height of system pressure reached the rated working pressure, the oil spill valve unloading, the oil pressure is maintained at a constant working pressure check valve holding pressure after the shutdown, the platform will stay in the working position, the platform according to the site's operations in height maximum height position for any of the following