Air compressor: It is used to compress air for useb. Pneumatic cylinder: it uses compressed air and transforms it into linear force. Pressure sensor: It is used to measure the air pressure in the system. Pressure regulator: it cuts off the air supply at a particular pressure. Vacuum pump: It is used to create a vacuum. Similar to the hydraulic lifting mechanism, it also consists of an arrangement of cylinders and pistons. The difference is simply that it uses air as a pressurizing medium instead of hydraulic fluid. But the pneumatic mechanism cannot withstand that much load. as a hydraulic lifter due to the compressibility of air. But in addition to this, it provides clean operation and it is used in food processing units, medical industries, etc. 3.) Mechanical hand lifter uses hand power to lift the load. This type of lifts operate with hand or foot strength and use mechanical parts such as gears, chains and sprockets. This mechanism uses various mechanical components like lead screws, gears, chains, etc. to lift weight or load..4.)