Pneumatic Impact Wrench: reviews, specifications. The device of a pneumatic screwdriver

The field of use of a wrench is not limited to car service specialists.

Scope of use

This device is actively used today and within the assembly companies, in the furniture industry and representatives of construction companies. This list has been relentlessly replenished with new areas where we have already managed to assess the high speed of work provided by new technologies. If you also need a pneumatic impact wrench, it is important to know what characteristics to pay attention to.

Tool construction

There are no special complications in the construction of the wrench, among the leading units it is necessary to distinguish the air motor, the reverse mechanism, the impact mechanism, the body, and also the starting device. Most often such tools are installed six-blade rotary engine, which is located in the body. The impact mechanism, as a rule, consists of a cam clutch, a pusher, a flywheel with a shaft and a spring, there are in the construction a roller and a pin. For comfortable use in different positions, the equipment is supplied with a handle, which is installed in two positions with respect to the housing. Not every pneumatic impact wrench has such a complement, but its availability is desirable.

Principle of operation

The described instrument functions from the compressed air, which is injected into the engine through the starting device and the reverse. Movement from the rotor is transmitted to the impactor, or rather, the flywheel, which operates on the principle of a coupling. At the moment when the screwing resistance reaches a force that is sufficient to overcome the spring mechanism, the coupling, the exchange head and the pusher stop. But the roller continues to rotate, it is called to move the pusher, as a result of which the impact mechanism is activated.

Feedback from consumers about the choice

A pneumatic impact wrench can have a number of knobs to determine the tightening force, torque and screw speed. However, as consumers say, more sophisticated tools can quickly fail. If you decide to choose a multifunctional device, as the users emphasize, then you should stop choosing those models that are made by manufacturers that have proven themselves in the market of the corresponding products. From Chinese aggregates is best to refuse, they are usually unreliable. First of all, you will come across a problem that is expressed in the breakage of the tightening force regulator.

Characteristics of cargo impact wrench

If you need a pneumatic wrench for trucks, you should not rush to make a choice. Experts argue that not always expensive tools are the best option, because the machine must meet certain needs. It is important to answer yourself the question before buying about how often you have to unscrew or twist the nuts. This question is correct, since in different models the torque can be concentrated on unscrewing or twisting. For the assembly line, the tightening torque is particularly indispensable, but for both the car service or the construction team, the most important will be both operations. Experts do not advise concentrating on the number of revolutions. The higher the speed, the more difficult it will be for you to control the situation. In this case, it is quite difficult to eliminate the constriction. In some cases, it is necessary to attach fasteners to avoid material misalignment. If you decide to buy a turntable, you need to pay attention to whether it has a quick stop operation. It is important to decide whether the master will change the heads for different sizes of nuts. All described models are able to function with several nozzles, but the more their list, the higher the price will be. If you work with only two sizes, then there will be enough models with standard nozzles.

Characteristics of the torque regulator

After you know what the pneumatic screwdriver is, you can figure out the torque regulator, which is an important consideration when choosing. If you need a model with a tightened torque, you need to purchase the product from the popular supplier companies. It is necessary to take into account the fact that even their aggregates can have a pneumatic error of 10%. If you need great accuracy, it is important to pay attention to hydraulic wrenches. For such instruments, the error is usually 2%.

What else you need to know about a pneumatic impact wrench?

Some features of the described tool. The pneumatic pneumatic wrench should be used without classic mistakes, as the most popular of them is a tightening of the fastening. If you use an aggregate with a torque of 2000 Newton meters, you will need to tighten the nut or bolt with some margin. After a while, many motorists understood those mechanics who accidentally pulled the threaded connections. If to admit excess of a twisting moment it can become the reason of problems with service of the car. This circumstance can lead to breakage of light-alloy materials.

In order to repair the pneumatic wrench is not needed before the due date, it is necessary to comply with the technology. Much will depend on the quality of the air used, which must meet the requirements prescribed by the manufacturer. Air should be enriched with oil and as dry as possible. In order to dry the air, you can use special filters, whereas for the supply of oil you will need lubricators. If you use the described instrument with air that does not comply with the above rules, then the unit will serve much less.

If before you a pneumatic pneumatic screwdriver, it is recommended to read the testimonials even before the model is purchased. But in the process of operation you should use special heads that are made of a special alloy. This statement is relevant in the event that you will use a shock- type impact wrencher . If the tool is operated in tandem with conventional heads, this can cause a rapid deterioration of the shaft and the need to replace it. It is important to take this feature into account, because the tool described in the article is an item that can not be called too cheap a pleasure. That is why it is necessary to approach it seriously.

Conclusion

A pneumatic wrench, the characteristics of which have been described in the article, should be used according to all the rules that can be found in the instructions attached by the manufacturer. Only then the tool will not require premature repair, on which it will not be necessary to spend additional funds. You can buy a similar tool WESTER PSS-10 for 5000 rubles. This unit is shock, it demonstrates 7500 revolutions per minute, and the warranty on it will last for 3 years.