![Search magnet UMP 94x28 [3xM10] GW F300 GOLD / N38 - GOLD Series](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Search magnet UMP 94x28 [3xM10] GW F300 GOLD / N38 - GOLD Series")
![UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder](https://cdn3.dhit.pl/graphics/products/ump-94x28-m10-gw-f300-vux.jpg)
UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder
search holder
Catalog no 210447
GTIN/EAN: 5906301814115
Diameter Ø
94 mm [±1 mm]
Height
28 mm [±1 mm]
Weight
1600 g
Load capacity
330.00 kg / 3236.19 N
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 8 000 Gauss [±5%]
200.00 ZŁ with VAT / pcs + price for transport
162.60 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Pick up the phone and ask
+48 888 99 98 98
if you prefer let us know via
our online form
the contact section.
Lifting power as well as shape of magnetic components can be checked using our
magnetic mass calculator.
Orders submitted before 14:00 will be dispatched today!
💡 Guide: How to choose a decent magnet and not get ripped off?
Instead of believing fairy tales on YouTube with tests on uncertified equipment, see what really determines your magnet's power:
- 📏 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 details - UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder
Specification / characteristics - UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210447 |
| GTIN/EAN | 5906301814115 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 94 mm [±1 mm] |
| Height | 28 mm [±1 mm] |
| Weight | 1600 g |
| Load capacity ~ ? | 330.00 kg / 3236.19 N |
| Coating | [NiCuNi] Nickel |
| Series | GOLD |
| Holder Type | 2 sided |
| Material Type | Structural steel S235 (ferrous) |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 3xM10 |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.2-12.6 | kGs |
| remenance Br [min. - max.] ? | 1220-1260 | mT |
| coercivity bHc ? | 10.8-11.5 | kOe |
| coercivity bHc ? | 860-915 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 36-38 | BH max MGOe |
| energy density [min. - max.] ? | 287-303 | BH max KJ/m |
| max. temperature ? | ≤ 80 | °C |
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
![UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umg-22x6-m4-gz-hiw.jpg "UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread")
![UMGGW 34x8 [M4] GW / N38 - magnetic holder rubber internal thread](https://cdn3.dhit.pl/graphics/products/umg-34x8-m4-gw-kek.jpg "UMGGW 34x8 [M4] GW / N38 - magnetic holder rubber internal thread")
Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They retain full power for around ten years – the loss is just ~1% (according to analyses),
- They feature excellent resistance to weakening of magnetic properties due to external fields,
- In other words, due to the metallic surface of gold, the element becomes visually attractive,
- Magnetic induction on the working layer of the magnet is strong,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Due to the ability of accurate shaping and adaptation to individualized solutions, NdFeB magnets can be manufactured in a wide range of geometric configurations, which expands the range of possible applications,
- Versatile presence in high-tech industry – they are utilized in computer drives, electric motors, diagnostic systems, also modern systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions
Cons
- At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Due to limitations in realizing threads and complex shapes in magnets, we propose using casing - magnetic mechanism.
- Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these products can disrupt the diagnostic process medical when they are in the body.
- With large orders the cost of neodymium magnets can be a barrier,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what affects it?
- using a plate made of low-carbon steel, acting as a magnetic yoke
- possessing a massiveness of at least 10 mm to avoid saturation
- with an ground touching surface
- with zero gap (without coatings)
- during detachment in a direction vertical to the plane
- at standard ambient temperature
Determinants of practical lifting force of a magnet
- Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
- Base massiveness – too thin sheet does not close the flux, causing part of the flux to be lost to the other side.
- Steel grade – ideal substrate is pure iron steel. Cast iron may attract less.
- Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate decreases the holding force.
H&S for magnets
Fire risk
Combustion risk: Rare earth powder is explosive. Avoid machining magnets without safety gear as this risks ignition.
Threat to electronics
Data protection: Neodymium magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, timepieces).
Threat to navigation
Navigation devices and mobile phones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.
Maximum temperature
Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. Damage is permanent.
Metal Allergy
Medical facts indicate that nickel (standard magnet coating) is a common allergen. If your skin reacts to metals, refrain from direct skin contact or select encased magnets.
Medical implants
For implant holders: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or request help to handle the magnets.
Adults only
NdFeB magnets are not toys. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which poses a critical condition and requires urgent medical intervention.
Magnet fragility
Protect your eyes. Magnets can fracture upon violent connection, launching sharp fragments into the air. Wear goggles.
Crushing force
Big blocks can smash fingers instantly. Under no circumstances put your hand between two strong magnets.
Respect the power
Handle magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their force.
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
Rate the product
Your rating