Vacuum sucker for removing dents on the car: description, types and instructions

Straightening work with car bodies often requires the connection of specialized equipment. The situation is complicated by the fact that external defects must be removed together with the paintwork. That is, solving one problem inevitably poses new tasks that require additional financial investments. In the case of minor damage to the metal surface, alternative and less expensive means can be used. So, the sucker for removing dents is gaining popularity, allowing not only to preserve the paintwork in the problem zone, but also to do without the help of specialists.

Tool construction

The design is simple enough and does not represent special complexity in handling. The functional base is based on the suction cup itself, which is made of a combination of high-strength plastic and rubber lining. This part in the process of working captures the damaged area and then pulls it under the force, restoring the original geometry of the surface. The second important component is the reverse hammer, due to which the action appears. There are models that act on the principle of hydraulics, and the simplest modifications realize the lever pressure. In both cases, the suction cups for removing dents without painting can only work with damages that are suitable in size. Most models correct only flat dents with a diameter of about 15-20 cm. If there is significant bending of the metal or stretching, the tool will be ineffective.

Varieties

In addition to hydraulic and mechanical lever suckers, the compressor station is also common . Such modifications exert pressure from the pressure that presses compressed air. If manual effort is not enough, then it makes sense to refer to such a snap. Distinguish between the instrument and the configuration of the location of suckers. There are single models with one capture point, but a large diameter. And to work with large areas of defects it is advisable to use models in which 2-3 suckers are combined at once. Such a device not only expands the area of action of the mechanism, but also minimizes the contact zone with the paint coating. But it is important to take into account that a multicomponent suction cup for removing dents requires experience and appropriate preparation during operation. Some versions also assume the operation of connecting an assistant.

Preparation for extraction

The quality of correcting the problem area is greatly influenced by proper preparation. It is necessary to clean, rinse and degrease the working area with a special car chemistry for the body. Separately, the sucker is prepared. It is connected to the hammer by means of a thread. It is important to make sure that this part in the drawing process can provide a smooth and unobstructed course. Correct correction is highly undesirable jerks, so it is better to check the thread before the start of the straightening procedure. By the way, if the suction cup for removing dents on the car has an insufficient length of the mating line with the hammer, you should also prepare an additional washer. But it is recommended to avoid such inclusions - the shorter the bar with the translation of the drawing force, the more effective the control of the restorative deformation of the metal.

Instructions for use

The vacuum is realized in several stages. After the surface has been cleaned, it is necessary to mark the gripping points. Here, the correct geometric calculation is important, so that the force action ensures that the hood is in the right direction. Start the operation preferably from the edges of the deformation zone towards the middle. The fixation of the suction cup circle is carried out with the help of a special glue. At the same time, it is necessary to wait 5-10 minutes for it to grasp at the point where the voltage is applied. Further, the hammer itself is used, and, depending on the principle of force exertion, the drawing process begins with a corresponding offset to the center of the problem area. According to the scheme of circular motion with a decrease in the radius of damage, the suction cup must gradually move to remove dents. It is advisable to carry out this operation with gloves in the hands, and if a compressor unit is used, then the compressed air supply must be strictly balanced. Excessive stress can provoke the reverse effect of drawing already beyond the normal plane of the body.

The positive side of using the sucker

Since the advent of vacuum equipment for drawing dents to this technology, there has been a skeptical attitude. Few motorists believed that the tool really retains the paint and draws out the metal surface. Nevertheless, the main advantage of the method lies in the effectiveness. Given the correct preparation of the deformed area, there is every chance to leave in its original form and decorative coating of the body. Also the suction cup for removing dents requires little time for the operation. According to users, typical shallow damages are corrected manually for 30-40 minutes.

Disadvantages of the method

Unfortunately, the method does not give a 100% recovery of the geometric line. Even professional locksmiths do not always achieve a visually even surface. But, given the simplicity of the mechanism of recovery and the results are satisfied with many. Another drawback of the method lies in the limitations of its use. It has already been said that vacuum extraction of the sucker to remove dents can not be used in stretch areas and strong metal bends. But also this method can not be used if the deformation zone has damaged paintwork. The fact is that the preservation of a layer of paint in this case will not have to count. Coverage will be further destroyed by the sucker, and the mechanism of vacuum capture may not work at all.

Nuances of the choice of instrument

In choosing a sucker, you can stick to two tactics. This is either the purchase of an ergonomic universal model with several points of capture, or a purposeful acquisition of a mechanism for working with specific dents. Further, the method of force action is determined, which will depend on the complexity of the operations performed. To work with shallow defects, a hand sucker is suitable for removing dents, and massive damage to a large area is more conveniently corrected by means of a compressor.

Alternative technologies

Even before the advent of vacuum-leveling technology, home-based masters in garages used the method of drawing from the inside in the same lever way. But today this technique is practically not used because of the complexity of the organization of its implementation. But the magnetic vacuum sucker got used to remove dents. With your own hands, this method can be implemented without a special tool. It's enough to arm yourself with a rag and a magnet block with enough tension. Further through the lining of rags the active element is superimposed on the dent and pulled back. In terms of efficiency, this method is not so impressive in comparison with the factory glue vacuum, but correction of small damages is quite feasible.

Conclusion

The use of a compact vacuum with a suction cup to restore the geometry of the body is organically included in the concept of garage repair by folk technologies. The way is simple, efficient and, most importantly, cheap. The basic set of such a device on the market can be purchased for 1-2 thousand rubles. By adding a few thousand more, the arsenal of tools can be replenished with a multifunction straightening station with a compressor and several capture points. But in any design, a vacuum sucker for removing dents also implies the presence of certain risks in terms of exacerbating the situation. This is also a characteristic feature for folk remedies. Many newcomers mistakenly believe that the key to successful implementation of vacuum extraction is the force potential of the deforming effect. This is not at all, since the most often applied effort is enough. Another thing is that it is not always possible to find the optimal balance between the effort and the direction of its application. Therefore, there is a possibility of excessive deformation of the site with coverage of an even area.