We often see people using a special tool. They neither require a lot of effort from the user like hand tools, nor are they driven by electricity like electric tools. They only need a pipe to supply some air to them. The compressed air can drive it, and these tools is very powerful. No matter how big the bolt is, it can be easily done by just hearing a few “click, click, click” sounds. This kind of tool is a pneumatic tool.

Pneumatic tools are mainly tools that use compressed air to drive a pneumatic motor.  Pneumatic tools have the characteristics of lower cost, more safer, and stronger environmental adaptability, and they are widely used in auto repair, construction, equipment etc. In installation and maintenance, mineral mining, industrial production and other industries, we often use many pneumatic tools, such as pneumatic wrenches, pneumatic screwdrivers, pneumatic spray guns, pneumatic nail guns, air blow guns etc.

The machine that provides the power source (compressed air) for pneumatic tools is an air compressor. The air compressor sucks in the air, compresses it, and then delivers it to the pneumatic tool through a pipeline.

The size of the air compressor should be equipped according to the air consumption of the pneumatic tool. Usually, in order to provide stable compressed air to the pneumatic tool, it will also be equipped with an air storage tank, which can store a certain amount of compressed air to make the output air pressure more stable and smooth. And at the same time, it can also reduce the temperature of the compressed air and remove dust, moisture, impurities from the compressed air.

The difference between pneumatic tools and electric tools

Many people have questions about whether it is better to buy pneumatic tools or electric tools. What is the difference between them? In fact, the main difference between the two is that they use different power sources. Pneumatic tools use compressed air as the power source. Electric tools use batteries or AC as power.

In terms of purchase cost, because pneumatic tools require the purchase of air compression equipment, the initial investment will be larger. However, during use, pneumatic tools directly use compressed air as power, but they still need to use electricity to drive the air compressor. Generally speaking, the cost is still higher than that of electric tools, so pneumatic tools are commonly used in factories, engineering, and decoration.

Electric tools is more convenience and are more suitable for home use. Even if there is no electricity, you can still use batteries. The disadvantage is that you need to prepare enough batteries.

With the same output power, pneumatic tools themselves are lighter because they do not have an power system (battery), which can reduce labor intensity and improve efficiency.

Overloading often occurs when using automatic tools. For electric tools, overloading can cause heating, short circuit or burning of the motor. This will not only affect production efficiency but also increase additional maintenance costs. Overloading of pneumatic tools It will only stop working temporarily and will automatically return to normal working status as soon as the overload phenomenon is relieved.

Pneumatic tools can be used when connected to the air source during use. The power supply or battery used by electric tools is prone to safety risks such as explosion and leakage, so pneumatic tools are very suitable for places that are prone to dust and static electricity, such as coal mine operations.

How pneumatic tools work

Let’s take the pneumatic wrench as an example. How can this pneumatic tool tighten the screws so tightly and so fast, but it only uses compressed air? How can it do it?

The pneumatic wrench is also called a combination of a ratchet wrench and an electric tool. The power of the pneumatic wrench comes from compressed air. The compressed air pressure can reach 0.6 MPa. There are more than 40 parts working together in the hard shell of the pneumatic wrench.

The compressed air will expand rapidly after entering the wrench. This is the source of the power for the rotation of the pneumatic wrench. The high-pressure air pipe sends the compressed air to the pneumatic motor, driving the four blades on the pneumatic motor to rotate at a speed of up to 18,000 rpm.

A set of three intermeshing gears slows down the spindle and amplifies torque power so that any screw can be tightened or loosened quickly.

Exhaust air is discharged through the handle, and silencer cotton is installed at the exhaust port to reduce noise. Whether it is tightening or loosening screws, a pneumatic wrench can easily handle it.

If the type of the batch head installed in the front is not right, the batch head must be replaced quickly. The quick-change chuck with spring can replace the batch head in one second. The clamp in front of the pneumatic wrench is fixed by an embedded steel ball. A quick twist of the outer batch head steel ball will be retracted into the inner groove inside, a second time to replace the batch head.

The safety of Pneumatic tool

Pneumatic tools powered by compressed air have many advantages, but the safety of pneumatic tools cannot be ignored when using them.

For example, the blow gun is often used in production. It is a powerful and practical tool for industrial cleaning. We can see it in many places every day. In addition to using the blow gun for quick and effective surface cleaning, it also Cleaning can be done while the machine is running.

If the air pressure in the blow gun is too high and the air is discharged, the air can puncture the skin or directly penetrate the skin and enter the body, causing serious bodily harm. If it enters the body, it can also cause rupture of internal organs.

When using a blow gun, you need to wear protective safety glasses to protect your eyes from flying debris, so that workers can remove objects from surfaces or dangerous equipment from a safe distance. By wearing protective gear and adjusting the compressed air to the right pressure, you can stay safe while maintaining high productivity.

During the Industrial Revolution, the steam engine was invented, which could provide a power source for many large-scale equipment. Later, people invented air compressors one after another, which could provide a larger power source for smaller machines and equipment by compressing air. The invention of pneumatic tools provided the conditions.

Up to now, due to the excellent performance of pneumatic tools, they have become indispensable tools in many fields and play an important role. In the future, with the emergence of new materials, new technologies, and new processes and people's emphasis on product safety and environmental protection, Pneumatic tools will play an even more important role.