The use of a wrench is not at all limited to car service specialists.
Scope of use
This device is actively used today and inwithin the assembly enterprises, in the field of the furniture industry and representatives of construction firms. This list is constantly updated with new areas where they have already appreciated the high speed of work provided by new technologies. If you also need a pneumatic wrench, then it is important to know what characteristics to pay attention to.
Tool device
There are no particular difficulties in the design of the wrench,Among the leading components, an air motor, a reverse mechanism, a percussion mechanism, a housing, as well as a starting device should be distinguished. Most often, a six-blade rotary engine is installed in such tools, which is located in the housing. The shock mechanism, as a rule, consists of a cam clutch, a pusher, a flywheel with a shaft and springs; there is a roller and a pin in the design. For comfortable use in different positions, the equipment is supplied with a handle, which is installed in two positions relative to the body. Not every pneumatic wrench has such an addition, but its presence is desirable.
Principle of operation
The described tool functions from compressedair that is injected into the engine through the starting device and reverse. Movement from the rotor is transmitted to the percussion mechanism, or rather, to the flywheel, which operates according to the coupling principle. At that moment, when the resistance of screwing reaches such a force, which is sufficient to overcome the spring mechanism, the coupling, the interchangeable head and the pusher stop. But the roller continues to rotate, it is designed to move the pusher, as a result of which the impact mechanism is activated.
Consumer reviews about the choice
Pneumatic wrench can have manyregulators to determine the tightening force, torque and screwing speed. However, as consumers say, more complex tools can quickly fail. If you decide to choose a multifunctional device, as users emphasize, then you should stop the choice on those models that are made by manufacturers who have proven themselves in the market for relevant products. It is the best of all to refuse the Chinese units, they, as a rule, are unreliable. First of all, you will encounter a problem, which is expressed in the breakdown of the regulator of force of an inhaling.
Cargo Wrench Characteristics
If you need a pneumatic wrench fortrucks, then you should not rush to make a choice. Experts say that not always expensive tools are the best option, because the device must meet certain needs. It is important to answer the question before purchasing how often you have to unscrew or tighten the nuts. This question is correct, since in different models the torque can be concentrated on loosening or twisting. For the assembly line, the torque is especially indispensable, but for auto service or solving the tasks of the construction crew, both operations will be the most important. Experts do not advise to concentrate on the number of revolutions. The higher the speed, the harder you control the situation. At the same time it is quite difficult to exclude constriction. In some cases, you need to attach fasteners to prevent material misalignment. If you decide to purchase an agile unit, then you need to pay attention to whether there is a quick stop operation in it. It is important to decide whether the master will change heads for different sizes of nuts. All the models described are capable of functioning with several nozzles, but the larger their list, the higher the price will be. If you work with only two sizes, then it will be quite enough model with standard nozzles.
Characteristics of the regulator torque
After you know whatthe device is a pneumatic wrench, you can deal with the regulator torque, which is an important point when choosing. If you need a model with a verified torque, you need to purchase the product from popular suppliers. It is necessary to take into account the fact that even their units may have a pneumatic accuracy of 10%. If you need great precision, then it is important to pay attention to the hydraulic wrenches. Such tools have an error of 2%, as a rule.
What else you need to know about a pneumatic wrench
It has some features describedtool. Pneumatic wrench should be used without classic mistakes, the most popular of them is hauling attachment. If you use a unit with a torque of 2000 Newton meters, then there is a need to tighten the nut or bolt with some margin. After some time, many motorists understood those mechanics who accidentally dragged the threaded connections. If you allow excess torque, it can cause problems with the maintenance of the car. This circumstance can lead to breakage of alloy materials.
To repair pneumatic wrenchnot needed before the due time, you must comply with the technology. Much will depend on the quality of the air used, which must meet the requirements prescribed by the manufacturer. The air should be enriched with oil and as dry as possible. In order to dry the air, you can use special filters, whereas lubricators will be needed to supply oil. If you use the described tool with air that does not comply with the above rules, the unit will serve much less.
If you have a pneumatic wrench, reviewsIt is recommended to read before the acquisition of the model. But in the process of operation, you must use special heads that are made of a special alloy. This statement is relevant in the case when you will use a percussion type impact wrench. If you use the tool in tandem with conventional heads, this can cause the shaft to wear out quickly and need to be replaced. It is important to take into account this feature, because the tool described in the article is a product that cannot be called too cheap pleasure. That is why its operation must be taken seriously.
Conclusion
Pneumatic wrench, whose characteristicswere described in the article should be used according to all the rules that can be found in the instructions attached to the manufacturer. Only then the tool will not require premature repair, on which there will be no need to spend additional funds. You can buy a similar tool of the WESTER PSS-10 brand for 5,000 rubles. This unit is a shock, it demonstrates 7500 revolutions per minute, and the guarantee for it will be valid for 3 years.
