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UMP 29x10 [M5] GW - search holder
search holder
Catalog no 210230
GTIN/EAN: 5906301813903
Diameter Ø
29 mm [±1 mm]
Height
10 mm [±1 mm]
Weight
0.1 g
Load capacity
32.00 kg / 313.81 N
Coating
[NiCuNi] Nickel
10.50 ZŁ with VAT / pcs + price for transport
8.54 ZŁ net + 23% VAT / pcs
bulk discounts:
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Strength and form of neodymium magnets can be tested with our
magnetic calculator.
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💡 Check why professionals choose Dhit over cheap substitutes
Don't be fooled by amateur online tests – go for certified quality and specific parameters that guarantee success:
- 📏 Magnet thickness in the casing (min. 10mm) – This is what matters most! Thin magnets are weak. Thanks to the 1cm thickness of N52 neodymium, your magnet "sees" metal even through thick rust and mud.
- 🛡️ Armored protection (Black Epoxy) – Forget about rust. This coating doesn't chip when hitting rocks and protects the magnet in water much better than regular nickel, which fails quickly.
- 🧲 Eyelets that don't steal power – Made of special non-magnetic steel, so they don't stick to the magnet and don't block the force. Important: mount only one eyelet at a time! Using 3 at once is a mistake that weakens the magnet.
- 🧶 Certified rope (min. 8mm) – You gain the certainty that your gear won't stay at the bottom. It's thick and comfortable, so it doesn't cut your fingers when pulling out heavy scrap metal.
- 🚀 Our advantage: We are the only ones combining the strongest N52 neodymium (10mm thick) with non-magnetic eyelets. This is real power and durability you won't find anywhere else.
Invest in solid equipment and enjoy the results!
Technical parameters - UMP 29x10 [M5] GW - search holder
Specification / characteristics - UMP 29x10 [M5] GW - search holder
| properties | values |
|---|---|
| Cat. no. | 210230 |
| GTIN/EAN | 5906301813903 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 29 mm [±1 mm] |
| Height | 10 mm [±1 mm] |
| Weight | 0.1 g |
| Load capacity ~ ? | 32.00 kg / 313.81 N |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±1 mm |
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
| properties | values | units |
|---|---|---|
| Vickers hardness | ≥550 | Hv |
| Density | ≥7.4 | g/cm3 |
| Curie Temperature TC | 312 - 380 | °C |
| Curie Temperature TF | 593 - 716 | °F |
| Specific resistance | 150 | μΩ⋅cm |
| Bending strength | 250 | MPa |
| Compressive strength | 1000~1100 | MPa |
| Thermal expansion parallel (∥) to orientation (M) | (3-4) x 10-6 | °C-1 |
| Thermal expansion perpendicular (⊥) to orientation (M) | -(1-3) x 10-6 | °C-1 |
| Young's modulus | 1.7 x 104 | kg/mm² |
Elemental analysis
| iron (Fe) | 64% – 68% |
| neodymium (Nd) | 29% – 32% |
| boron (B) | 1.1% – 1.2% |
| dysprosium (Dy) | 0.5% – 2.0% |
| coating (Ni-Cu-Ni) | < 0.05% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of neodymium magnets.
Advantages
- They do not lose magnetism, even over approximately ten years – the drop in power is only ~1% (theoretically),
- Neodymium magnets prove to be exceptionally resistant to magnetic field loss caused by magnetic disturbances,
- A magnet with a metallic silver surface is more attractive,
- They show high magnetic induction at the operating surface, which affects their effectiveness,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of exact machining as well as adjusting to atypical needs,
- Key role in electronics industry – they are commonly used in mass storage devices, brushless drives, medical devices, also technologically advanced constructions.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Limitations
- To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating nuts and complex shapes in magnets, we recommend using casing - magnetic holder.
- Possible danger resulting from small fragments of magnets are risky, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products can disrupt the diagnostic process medical after entering the body.
- Due to complex production process, their price is higher than average,
Holding force characteristics
Maximum lifting capacity of the magnet – what it depends on?
- on a plate made of structural steel, optimally conducting the magnetic field
- whose transverse dimension equals approx. 10 mm
- with an ideally smooth touching surface
- under conditions of gap-free contact (metal-to-metal)
- for force acting at a right angle (in the magnet axis)
- at conditions approx. 20°C
Magnet lifting force in use – key factors
- Gap (betwixt the magnet and the metal), as even a very small distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Steel thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be lost to the other side.
- Steel type – mild steel attracts best. Alloy admixtures lower magnetic permeability and holding force.
- Surface structure – the more even the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, however under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.
Safety rules for work with NdFeB magnets
Pinching danger
Risk of injury: The pulling power is so great that it can result in hematomas, crushing, and broken bones. Use thick gloves.
GPS and phone interference
GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Material brittleness
Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.
Do not give to children
Always keep magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are life-threatening.
Do not drill into magnets
Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Conscious usage
Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
Medical interference
People with a pacemaker must maintain an absolute distance from magnets. The magnetism can interfere with the operation of the implant.
Warning for allergy sufferers
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, immediately stop working with magnets and wear gloves.
Electronic hazard
Data protection: Strong magnets can damage data carriers and delicate electronics (heart implants, medical aids, mechanical watches).
Demagnetization risk
Keep cool. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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