Search magnets are magnetic systems that include a magnet made of Nd-Fe-B alloy housed in a steel housing. The body and magnet are coated with a zinc protective coating. To attach it to a cable or rope, you need an eye bolt, which usually comes with a search magnet. With the help of an eye bolt, the magnet is torn away from the metal object to which it sticks. To do this, you just need to screw the eye bolt into the body, and gradually it will move away from the metal surface. There is a more powerful magnetic trawl system, which consists of several magnets assembled in one stainless steel housing. The main advantage of this system is the uniform distribution of magnetic fields throughout the working space and a large magnetic field output.
As a rule, search magnets are used to detect ferromagnetic objects in lakes, swamps, and wells. It is used to clear the area of metal debris before searching with a metal detector. Trawling of reservoirs is carried out using a magnetic trawl with a large usable area. Search magnets work due to the ability of permanent magnets to attract metal objects.
Before you start working with a magnet, you need to carry out some preparatory measures. First, you need to screw the eye bolt into the housing so that its end does not stick out on the working surface. To prevent it from accidentally unscrewing, you should tighten its nut all the way with a wrench, holding the eyebolt earring. After this, you need to tie a nylon rope to the earring - and the search magnet will be ready for use. If you use an eye bolt to separate a magnet from an object, the nut must first be unscrewed.
There are several nuances that you need to remember to successfully work with a search magnet. The greatest holding force is possible only if the surface of the metal object is clean and smooth, and the object's area is greater than or equal in size to the working surface of the search magnet. The thickness of the metal sheet must be at least 5 mm.
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Treasures, treasures, hiding places, jewelry... These words reek of adventure, adventurism, and romance.
Who didn't dream of finding treasures as a child?
Some adults have kept their childhood dreams and are making them come true by engaging in treasure hunting.
Like all passionate people, amateur searchers have their own interest clubs and communities. There they exchange experiences, discuss search devices, and make collective forays.
Modern metal detecting equipment help treasure hunters. One such device is a search magnet. More about it below.
The search magnet is capable of finding, capturing and lifting metal objects, the weight of which is much greater than the device itself 50-100 times. The device is otherwise called an eternal or powerful magnet.
The working fluid consists of a neodymium magnet (contains Nd-Fe-B) enclosed in a glass-shaped turned steel body.
The body is coated with zinc and the body with nickel, which allows use search device in water.
The housing protects and shapes the magnetic field in the correct direction. There are:
- Unilateral– convenient for searching from a boat, pier, bridge.
- Double sided– have a universal purpose.
- Trawls– good for examining the bottom of reservoirs.
- Rods– for narrow and hard-to-reach places for conventional magnets.
They also differ body diameter And magnetic force.
A special screw is screwed into the top or side bolt(eye bolt) designed for cable or rope.
The second function of the bolt is that it is used to remove an object from a magnet.
To do this, the eye bolt is screwed completely into the body, after which the magnetized object can be removed.
Most search magnets afraid of high temperatures(over +80), with strong heating lose their functions.
It is easy to work with: having attached it to a rope or cable, it is simply lowered into the desired place.
Differences from a metal detector
The fundamental difference is that the metal detector can only indicate location of the object, and the magnet allows immediately "get it" his. However, the magnet will not help when searching in the ground. Therefore, these two devices in the seeker’s arsenal are designed to complement each other, but not replace each other.
Other distinctive features:
- the magnet retains its functions in the aquatic environment;
- no need to buy batteries or accumulators;
- no sound signals, which attract the attention or “declassify” the seeker;
- do not take up much space, easy to take with you;
- items attract themselves;
- affordable price;
- resistant to damage;
- long service life, subject to compliance with operating rules - lose one percent strength in a hundred years.
Where can it be used?
Used to search for objects located out of sight:
- in caves;
- mountain failures;
- wells;
- sewers;
- bodies of water;
- swamps.
A magnet will be a good help during archaeological excavations, searching for wartime items.
Usually used in tandem with a metal detector. Using a magnet, excess, unnecessary metal is collected, but which will be “distracted” when searching with a metal detector. The metal detector then searches for more valuable alloys such as gold and silver.
Can you attract silver and gold?
Items that are made from metals that have ferromagnetic properties, can be attracted by such a magnet. For example, or.
Ferromagnetic properties are properties of base metals that allow them to “stick” to magnets with great force.
The burning question is, is it possible to lift objects made of precious metals using a magnet?
It is possible if the composition contains metals that react to magnetic attraction.
Special search magnet for gold and silver does not exist.
However, it is quite possible to obtain jewelry and coins made of precious alloys with its help, because they also contain other elements that the magnet will attract.
For example: 585 standard gold consists of 58.5 percent of one hundred gold. The remaining 41.5 percent comes from other metals, including nickel.
Nickel is easily attracted to a magnet. However, in order for such a decoration to be raised, there must be a touch to a jewelry find.
It's the same story with silver. If added to the alloy ligatures(metals added to jewelry to increase durability), objects or jewelry will be attracted.
Review of popular devices and their prices
The leader in production is considered China. Approximately 130 enterprises in China produce neodymium magnets.
IN Russia These products are manufactured by:
- scientific and production company "Supersistema", Moscow;
- ZAO NPO REDMAG, Kaluga;
- LLC "Plastic" in St. Petersburg;
- LLC "Research and Production Company "Magnites and Systems", St. Petersburg;
- Nepra company, Moscow region, Zheleznodorozhny;
- NPO "ERGA" in Kaluga.
| Name | Diameter, mm | Height, mm | Breakout force, kg | price, rub. |
| Research and production company "Supersystem" | ||||
| F80 (single sided) | 48 | 10 | 80-90 | 690 |
| F150 (single-sided) | 68 | 15 | 170-190 | 1190 |
| F600 (single-sided) | 130 | 24 | 660-690 | 4290 |
| Double sided F150x2 | 68 | 24 | 170-190 on each side | 1940 |
| Double sided F600x2 | 130 | 39 | 660-690 each side | 7290 |
| JSC NPO REDMAG | ||||
| F300 | 94 | 28 | 600 | 3050 |
| F600 | 136 | 25 | 600 | 5450 |
| Made in China(according to information from | ||||
You don’t need to think that all “fishing” will come down to throwing a magnet at a distance and pulling it back by the cable. To increase your chances of success, you need to follow several rules for working with search magnets.
1. Practice throwing in an open area with soft ground to evaluate your strength and “shoot.” Otherwise, the magnet may fly away to a different place than expected and even injure you.
2. Take care of the cable; it should be strong and bright (in case it gets tangled in snags, it will be easier to untangle). Choose the optimal length so that the cable does not get tangled. This depends on the depth of the reservoir, which, according to your mind, needs to be determined in advance.
3. To “fish” with a magnet, you will need a boat, and it’s better not an inflatable one, because a large pile of rusty objects can damage the watercraft.
4. Do not keep the magnet stationary in one place. This could cause it to magnetize something so heavy that it breaks the cable.
5. The best way is to throw the magnet and pull it back at medium speed (not too fast). You can also simply walk near the shore in swamp boots, dragging a magnet behind you.
6. If the bottom of the reservoir is heavily silted, then it makes sense to attach the search magnet not to the cable, but to the pole, and deepen it by pressing the pole forcefully.
7. After each cast, in some reservoirs you have to remove a layer of scale from the magnet, so take gloves and rags.
8. After repeated use, the galvanized layer usually peels off the surface of the magnet, and it begins to rust. To delay this phenomenon, it is advisable to clean and dry the magnet after each search session.
9. It is better to transport the magnet in a wooden case, and not keep it close to electronics. The mobile phone will definitely break in an unequal battle with neodymium.
But what can you catch with a magnet?
Catch with a magnet in a lake near one of the European towns.
“Yesterday I caught three scuba divers, two divers and one man with balls of steel using this kind of gear. The latter resisted the longest,” says one of the searchers.
Jokes aside, you won’t find gold-diamonds with a search magnet - precious metals are not magnetic. However, by following the basic rules, you can catch up to 100-130 kg of scrap metal in a couple of hours in a city or rural reservoir. If you hand it over, it will turn out to be a good amount.
You can buy a powerful neodymium magnet, which can lift hundreds of kilograms at a time, in
The fields are still being plowed, so there is no need to talk about a full-fledged search with a metal detector. Of course, you can walk around in the forest, but this is not exactly what the treasure hunter wants. After all, if you look at it, even searching in the forest, where there is not much grass, does not always promise to find at least something. The thing is that a lot depends on the proximity of populated areas, old villages and other objects that are interesting from the point of view of a search engine.
Moreover, the finds will be found in the immediate vicinity of populated areas, and already at a distance from the village, for example, 1-2 kilometers deep into the forest, the device may be silent, and sometimes you even get the feeling that it is broken, you have to double-check its functionality with a shovel, holding it over the coil. Just for fun, try to climb into the thicket of the forest, about 5 kilometers from the village, and look there. I think the result will not be very good.
Where can you use a search magnet?
So, when conditions do not allow normal amateur search with a metal detector, for some time you can switch to search magnet . In fact, from the name it is already clear what the point is - to look for metal objects that tend to be magnetized using a neodymium magnet for searching.
Moreover, the search itself, in 99% of cases, is carried out in the aquatic environment: rivers, lakes, ponds, wells. It may seem to some that this type of search is not particularly interesting, since what could be interesting in ordinary pieces of hardware?
What can you find with a search magnet?
But it turns out that there are quite a lot of interesting objects made from ordinary metal that are pleasing to the eye. You will be surprised when, after throwing a magnet into an old village pond, horseshoes, gardening tools, some kitchen utensils, and a host of other items will be pulled ashore.
If you throw such a magnet on rivers, you can add to your collection of fishing tackle. Knives, nails, axes, and other tools are often found. Of course, there is plenty of garbage too. But the activity is so exciting that it completely addicts you. We considered searching using a magnet as a hobby.
On the other hand, it is by working with a search magnet that you can earn extra money. Everything is simple here: there is so much scrap metal in some rivers that the question arises of how to remove it and how to transport it. You can’t earn millions, but a few thousand rubles with a serious approach is quite possible. Plus, you will make the river section itself cleaner, so to speak, with one more good deed in your piggy bank.
Several characteristics of a search magnet
If we turn to the market of search magnets, we will notice that today there are several types of magnets that differ from each other in the degree of maximum tearing force and are equipped with an eye bolt, which makes it easier to unhook the magnet from the metal surface. The bolts can be attached to the magnet on one side or on the side.
The magnets themselves are single-sided and double-sided; they do not rust from constant contact with water. In addition to having a hobby and making money from raised scrap metal, you can use magnets to clean wells into which buckets, chains and other metal objects accidentally fall. If you help the locals retrieve a fallen bucket, they will remember you for a long time and will always be happy to see you, keep this in mind.
When working with a search magnet, you need to follow safety precautions, because if your finger gets between the surface of the magnet and the iron, injury cannot be avoided - the magnetization force is such that crushing tissue is guaranteed, so you need to have a first aid kit with you (if you decide to search using a magnet). mandatory.
In the next article I’ll tell you how to tie a magnet, which rope is better to take so as not to make a mistake.
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Search magnets have become a very popular topic today. This kind of “fishing” attracts not only boys and scrap metal seekers, but also quite respectable and wealthy people. Why is this happening? There is a boy in every man, but not everyone likes traditional fishing. It happens that the fish is “capricious”, the gear is chosen incorrectly, the place is chosen poorly, and besides, you need to look for worms and prepare bait. And the fish itself... After all, you can buy it in a store. But with a magnet things are completely different. Here your tackle is always the same, but what you can catch with it is unknown. It is this intrigue that attracts. What if, on the next cast, the magnet takes with it not a rusty nail, but a rare dagger, a metal box with old chervonets, or a pistol from the times of the Great Patriotic War? Agree, this really tickles your nerves.
Search magnets have become widely available and at reasonable prices relatively recently. Modern technologies have reduced the cost of their production process, therefore, today, in order to get a magnet, you do not need to disassemble the old hard drive, just go to a store or on the Internet.
How to choose a magnet
At the same time, a beginner may have a reasonable question: how to choose a suitable magnet? After all, they differ both in size and in the force of attraction and cost. In reality, choosing the right product is not that difficult.
To begin with, we note that there are two types of magnets - single-sided and double-sided. They are distinguished by the fact that the first has only one working side of the magnet, while the second has two, respectively. Single-sided magnets provide only uniform fastening - the so-called. The eye bolt is screwed only into the center of the plane opposite the working surface. It also happens that a bolt with a hook for attaching a rope is soldered to the body in which the magnet is located. In a double-sided magnet, the bolt can also be screwed into the side part - the “edge”.
Looking ahead, we note that a double-sided magnet has undeniable advantages, which is why it costs more. Due to the nature of the one-sided magnet, it can only be used by lowering it vertically downwards. That is, they can be used from a bridge or a boat (if you are searching in a river or lake). It is also suitable for exploring old wells.
However, if you look at search engine channels on Youtube, you will notice that they usually throw a magnet while standing on the shore. For these cases, a double-sided magnet is needed. The “puck” should fall with its working side to the bottom, after which the magnet is guided along the bottom using a cable. A one-sided magnet will be of little use with this fishing method.
What weight should I choose?
We have already said that magnets come in two types according to their design. But when choosing a search engine, you need to take into account other properties and features. You must clearly understand why you need a magnet and where you will work with it. It is believed that search magnets must have an attractive force of at least 100-200 kg. At first glance it may seem like a lot, but in reality it is not. For example, a magnet that states that the force of attraction corresponds to 100 kg will only be able to hold the specified weight under ideal conditions. He will be able to lift vertically upward a flat metal plate with a smooth and clean surface. But if you slightly change the angle of application of the force, the magnet begins to move off the surface. This means that it will be able to drag barely half of the specified mass along the bottom. Now imagine what happens at the bottom of the river! The metal located there becomes overgrown with silt, sinks into the sand, and gets tangled in algae. So it turns out that you can hardly take out a thing weighing 10 kg on a “hundredth”! Don't forget about the current. When lifted off the bottom, the object immediately begins to vibrate and break off if the current is strong enough. Therefore, to search for various “artifacts” we can recommend magnets in the range of 200-400 kg. They will not attract unnecessary pieces of hardware, but they will reliably magnetize interesting things.
Making money from scrap metal is a completely different story. There really is so much metal waste in our rivers and lakes that it is quite possible to earn our daily bread from it. In this case, the “search engines” should be more powerful – in the range of 600-800 kg. Such magnets themselves weigh more than a kilogram, but they can easily pull out entire mountains of metal. There are cases when such magnets had to be torn off using machines. But with their help you can catch not only bicycles, but even motorcycles and the remains of cars.
Choice of ammunition
If you decide to start searching, then in addition to the magnet you will definitely need to purchase the appropriate cable. Don't skimp. Magnets are not that expensive, but losing even an inexpensive magnet due to a broken rope is very annoying. Most often, search engines purchase special nylon cables used by climbers. They are protected from abrasion and have a particularly strong middle core, which ensures that the cable will not break at the most inopportune moment. Choose the length of the cable based on your needs. Usually the length of the rope does not exceed 20 meters. It is physically impossible for even a strong man to throw a half-kilogram blank further. Be sure to purchase quality gloves. Cables and finds are very easy to cut and rub your palms. It is also advisable to have a lost and found bag. Finds from the bottom are often corroded by rust, covered with algae and silt, which is why they have an unsightly appearance and emit an unpleasant odor. So it’s inconvenient to put them in a regular bag or backpack.Pay attention to how the magnet is attached. Study the appropriate instructions on the Internet and select the appropriate unit.
Search Magnet Care
A high-quality magnet does not require special care. It is made of an alloy of neodymium, boron, iron and has a stainless steel coating. It is housed in a high-quality stainless steel case. Therefore, all caring for a magnet is wiping it with a dry cloth and cleaning it from small metal particles that stick to it and get clogged into the holes.The neodymium magnet itself is reliable and durable. Over 10 years, on average, it loses no more than 1% of power. It cannot be hit and, most importantly, it cannot be exposed to high temperatures. If you heat it to 80 degrees, it will completely demagnetize and turn into a useless blank.
Many people like to film their searches. Do not forget that exposure to a magnet can be harmful to any electronics. Not only the camera, but also a mobile phone with a laptop can easily fail. So keep all your gadgets at a safe distance.
Check each time the reliability of the assembly and the integrity of the cable.
What can you catch?
Let's face it, non-ferrous and precious metals are not magnetic! And these are the immutable laws of physics. You can't argue with them. Therefore, only iron and other alloys can be caught with a magnet. Usually search engines boast about the keys, locks, nails, coins and other small things they found. Sometimes you can get various antiques: horseshoes, forged items, various tools.
It is quite common to find weapons and ammunition. This is a legacy not only of the 40s, but also of the 90s. It is better to stay away from such finds and return them to the bottom without regret. After all, no one has repealed the article for illegal trafficking in weapons and ammunition. But it’s not worth taking risks, hoping that the expert will not recognize your find as a weapon.
In general, only God knows what may lie at the bottom of a reservoir! You can find completely unexpected, and sometimes very valuable things!
Where to look?
It doesn't matter what you're looking for, scrap metal or ancient artifacts, the fishiest place will be where there are more people. This is logical, because somehow this thing has to get to the bottom! So it turns out that the most interesting “fishing” will be close to the bridges. This is where passers-by and travelers lose or intentionally let various things go under water. When constructing bridges and structures, builders also dump unnecessary or inappropriate metal into the water. Therefore, bridges are also interesting in terms of finding scrap metal.It is better to choose an ancient bridge rather than a modern one. After all, then you can find things of the corresponding era, and not just modern consumer goods.
Which magnet should you choose?
Domestic manufacturers of neodymium magnets have managed to gain a good reputation. At the same time, high-quality magnets are produced in Germany and Poland. But one of the largest producers is China. It is in this country that the largest reserves of rare earth metals, which include neodymium, are concentrated. At the same time, the demand for the product is so high that China has introduced duties on the export of magnets to cover the needs of its own engineering industry. Despite this, you can purchase high-quality Chinese-made magnets on the Internet at an attractive price. There are disputes online regarding the power of magnets from different manufacturers. But the opinions expressed are mostly subjective, since all manufacturers monitor the quality of their products. Therefore, it is best to choose the manufacturer yourself.
Ultimately, no matter what magnet you choose, it must fulfill its functions, namely: guarantee you exciting leisure time or even provide income.
We wish everyone a successful search!