Which neodymium magnet holder for underwater searching?

Our professional GOLD series magnets are unique - they have as many as three threaded holes for the eyebolt. This gives you full freedom, but you must remember physics!

Top Mount: This is where the magnet achieves its full, nominal power (e.g., 200 kg for F200). Used for vertical fishing (e.g., from a well, bridge).
Side Mounts: Essential when throwing from the shore, so the magnet drags flat along the bottom.
WARNING: The force on the side mount is physically even 5x weaker than on the top (this results from the action of shear force).
Therefore, the model name (e.g., F200) refers to the maximum vertical pull force. When pulling sideways, the capacity is naturally lower - keep this in mind when choosing equipment!

Frequent question: "My F550 magnet (500 kg) slides down the fridge with little force. Why?"

It's not a defect, it's physics! The Capacity parameter is measured during perpendicular detachment (at a 90° angle). On a vertical wall, shear force acts, which is only 15-25% of the nominal power. That is why to pull heavy things out of the water we need magnets with such a large capacity (e.g., 500 kg) to compensate for losses resulting from pulling "sideways", rust, and silt.

The most common cause of losing a magnet is not it breaking, but... an untied rope! Do not use ordinary knots.

We recommend the Palomar Knot or Figure-Eight Knot. These are knots that tighten under load. Also remember to always use threadlocker (usually included in the set) when screwing in the eyebolt. Vibrations during dragging along the bottom can unscrew the bolt if you do not secure it.

Three factors determine whether you pull out treasure or an empty magnet:
1. Metal thickness: Thin sheet metal (e.g., a beer can) will not "absorb" the entire magnetic field of a strong magnet.
2. Contact surface: Rust, paint, mud, and shells create a distance (air gap), which drastically weakens the grip.
3. Working angle: It holds strongest when applied flat.

Ceiling/Floor = 100% Power

Flat surface = Good grip

Thin sheet = Less force

Magnet Fishing is a great hobby, but it requires responsibility:
1. UXO and weapons: If you fish out a weapon, ammunition, or a strange, rusty object resembling a shell - DO NOT TOUCH IT AND DO NOT TAKE IT HOME! Gently put it in a safe place and immediately notify the Police (number 112).
2. Archaeological artifacts: Deliberate searching for monuments requires a conservator's permit. If you accidentally fish out an old sword or coin of historical value - report it.
3. Trash: The finder's code of honor is clear: we take the fished-out scrap with us (to the trash or scrap yard). We do not throw trash back into the water! Let's take care of the cleanliness of rivers.

The magnet itself is not everything. In our sets you will find:

• Polypropylene rope: Durable, does not absorb water, does not stretch.
• Protective gloves: The basis of safety. They protect against cuts, dirt, and tetanus.
• Hook (Grappling Hook): Helpful for pulling out items that the magnet will not grab (e.g., tires, aluminum bikes).
• Threadlocker: Protects the eyebolt from unscrewing in water.

Despite the anti-corrosion coating (Ni-Cu-Ni), neodymium is sensitive to moisture. So that the equipment serves for years:
1. Rinse the magnet in clean water after each fishing trip (wash off mud and algae).
2. Wipe dry with a cloth.
3. Store in a dry place. You can lightly lubricate it with oil (e.g., WD-40) if you plan a long break.

Want to feel the difference? Attach the magnet to thick steel (e.g., a door frame, a vise) and try to detach it perpendicularly. Hard? Now move it sideways. You will feel how much easier it is to "slide" it. In water, we fight precisely with shear forces, which is why it is worth choosing a stronger model, e.g., F550 or F600, which provides a safety margin.