An Air Over Hydraulic Cylinder, also known as an air-hydraulic cylinder, is a specialized type of actuator that combines both pneumatic and hydraulic systems. It utilizes compressed air to control and generate hydraulic pressure, enabling it to deliver powerful and precise linear motion. The construction of an air-over-hydraulic cylinder consists of a pneumatic cylinder and a hydraulic cylinder integrated into a single unit.

Attributes:
• Provide a high level of power output for a given size and weight.
• Provides damping capabilities to reduce vibrations.
• Designed to use compressed air to generate hydraulic pressure, which can provide a high level of force and speed.

Applications: 
An Air Over Hydraulic Cylinder is used in the braking unit by converting compressed air energy into amplified hydraulic force, which offers high braking power, and precise control.