Pneumatics is a technique that uses compressed air at high-pressure to produce mechanical movements. Air or inert gases are compressed in cylinders to create energy to move the adjacent cylinders. Differential pressure is the principle behind the functioning of a pneumatic system. In simple terms, pneumatic systems operate by making use of energy transmission through the compressed air. They operate in a similar principle to that of hydraulics only the later uses liquids when transmitting forces.
These systems use incompressible liquids such as oil to transfer power. They are more capable of transferring much power than pneumatic since these liquids are incompressible even when great power is applied. These make them more appropriate for lifting heavy loads due. The main disadvantage of hydraulic systems that it becomes relatively more costly to repair them when they get damaged.
Uses of Pneumatic system and Hydraulic systems.
Both Pneumatic systems and hydraulic systems are common in modern drilling work such as mining, carpentry, and power air Jackhammers among others.
Pneumatics will convert electrical power into mechanical motions with the help of compressed gas rather than using motors. An air compressor system will store the compressed gas in rotating cylinders under control of electric power. These cylinders will release the compressed air to the adjusting cylinders thus causing them to rotate the drill fitted to these cylinders. To make the air or the gas used more machine friendly, a slight modification is done by adding atomized oil or water vapor. This reduces friction in the rotating parts.
A pneumatic drill is propelled by compressed air while the hydraulic drills mostly used in the construction industry are driven by compressed oil. Hydraulic drills are more powerful than pneumatic drills since the oil used in them can transit more power without them being compressed.
They are used in drilling pathways, rocks among other wide uses in the construction industry. The rotating hammer is run by the compressed air which is in turn supplied by the compressor engine. The hammer working principle is like that of a chisel which punches with its bit rather than the rotating tip.
Disadvantages of drilling using pneumatic drills.
The air exhaust produces much noise which can damage ears thus always use earmuffs when operating the pneumatic machine.
The constant vibration from the machine can easily interfere with the blood circulation in the fingers if one is exposed for a long time.
Advantages of drilling using pneumatic drills.
Pneumatic drills are much lighter due to the fact that motors used in compressor engines are relatively small and light compared to hydraulic drills. This, in turn, reduces tiredness to the worker.
They produce powerful torque compared to other drilling machines of a similar power voltage.
More durable and requires less maintenance since they don’t get damaged easily. Simple to operate.
Repair is simple compared to its hydraulic counterpart.
Advantages of Hydraulic drilling machine.
There are more powerful thus they can drill much harder rocks compared to pneumatic drills.
They don’t get damaged easily thus more economical in terms of repair and maintenance.