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UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread
magnetic holder internal thread
Catalog no 180420
GTIN/EAN: 5906301813798
Diameter Ø
75 mm [±1 mm]
Height
33 mm [±1 mm]
Height
18 mm [±1 mm]
Weight
475 g
Load capacity
162.00 kg / 1588.68 N
189.91 ZŁ with VAT / pcs + price for transport
154.40 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power and structure of magnets can be tested on our
modular calculator.
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Technical specification - UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread
Specification / characteristics - UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread
| properties | values |
|---|---|
| Cat. no. | 180420 |
| GTIN/EAN | 5906301813798 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 75 mm [±1 mm] |
| Height | 33 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Weight | 475 g |
| Load capacity ~ ? | 162.00 kg / 1588.68 N |
| 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 |
Chemical composition
| 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 |
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Advantages as well as disadvantages of neodymium magnets.
Benefits
- They retain full power for around 10 years – the drop is just ~1% (according to analyses),
- Magnets perfectly protect themselves against loss of magnetization caused by foreign field sources,
- By covering with a decorative coating of nickel, the element gains an nice look,
- Magnets are characterized by impressive magnetic induction on the outer side,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Possibility of precise creating as well as optimizing to precise requirements,
- Huge importance in modern technologies – they are utilized in HDD drives, electromotive mechanisms, medical devices, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Disadvantages
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- Due to limitations in creating nuts and complex shapes in magnets, we recommend using cover - magnetic mount.
- Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these magnets are able to complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Lifting parameters
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- using a base made of low-carbon steel, serving as a magnetic yoke
- with a cross-section no less than 10 mm
- with an polished touching surface
- with total lack of distance (without coatings)
- during pulling in a direction vertical to the plane
- at temperature room level
What influences lifting capacity in practice
- Distance – the presence of foreign body (rust, dirt, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- 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 maximum value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Plate material – mild steel attracts best. Alloy admixtures reduce magnetic properties and lifting capacity.
- Plate texture – ground elements ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the load capacity.
Safe handling of NdFeB magnets
Pacemakers
People with a pacemaker have to maintain an large gap from magnets. The magnetism can disrupt the operation of the implant.
Mechanical processing
Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Protect data
Device Safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, medical aids, timepieces).
Choking Hazard
Neodymium magnets are not intended for children. Eating multiple magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and necessitates urgent medical intervention.
Permanent damage
Do not overheat. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).
Eye protection
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.
Respect the power
Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Threat to navigation
A strong magnetic field interferes with the operation of compasses in smartphones and GPS navigation. Keep magnets close to a device to prevent damaging the sensors.
Metal Allergy
A percentage of the population have a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Frequent touching can result in an allergic reaction. We strongly advise wear protective gloves.
Pinching danger
Danger of trauma: The pulling power is so immense that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.
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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