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UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread
magnetic holder internal thread
Catalog no 180315
GTIN/EAN: 5906301813712
Diameter Ø
16 mm [±1 mm]
Height
13 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
6.6 g
Load capacity
5.00 kg / 49.03 N
3.80 ZŁ with VAT / pcs + price for transport
3.09 ZŁ net + 23% VAT / pcs
bulk discounts:
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Specifications as well as appearance of a neodymium magnet can be estimated using our
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Physical properties - UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread
Specification / characteristics - UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread
| properties | values |
|---|---|
| Cat. no. | 180315 |
| GTIN/EAN | 5906301813712 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 16 mm [±1 mm] |
| Height | 13 mm [±1 mm] |
| Height | 5 mm [±1 mm] |
| Weight | 6.6 g |
| Load capacity ~ ? | 5.00 kg / 49.03 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 |
Material specification
| 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
![UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread](https://cdn3.dhit.pl/graphics/products/umg-22x6-m4-gw-jek.jpg "UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread")
Strengths as well as weaknesses of neodymium magnets.
Strengths
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- Magnets very well resist against loss of magnetization caused by external fields,
- By covering with a lustrous layer of silver, the element presents an aesthetic look,
- Magnets are distinguished by impressive magnetic induction on the working surface,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of exact shaping as well as adapting to individual conditions,
- Universal use in future technologies – they are utilized in magnetic memories, electric motors, precision medical tools, also technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in miniature devices
Weaknesses
- At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 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 realizing threads and complex shapes in magnets, we recommend using a housing - magnetic holder.
- Possible danger to health – tiny shards of magnets are risky, if swallowed, which gains importance in the context of child safety. Furthermore, small components of these products are able to complicate diagnosis medical after entering the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Pull force analysis
Maximum holding power of the magnet – what it depends on?
- on a block made of structural steel, perfectly concentrating the magnetic flux
- with a cross-section no less than 10 mm
- with an polished contact surface
- under conditions of ideal adhesion (surface-to-surface)
- during detachment in a direction perpendicular to the plane
- at standard ambient temperature
Lifting capacity in real conditions – factors
- Clearance – the presence of foreign body (paint, dirt, gap) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
- Plate material – mild steel attracts best. Alloy steels reduce magnetic permeability and lifting capacity.
- Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.
Warnings
Machining danger
Fire hazard: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.
Safe operation
Be careful. Neodymium magnets attract from a long distance and snap with massive power, often faster than you can react.
Warning for allergy sufferers
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, cease handling magnets and wear gloves.
Demagnetization risk
Avoid heat. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, ask us about HT versions (H, SH, UH).
Implant safety
Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Choking Hazard
Always keep magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are fatal.
Keep away from computers
Very strong magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.
Magnetic interference
A powerful magnetic field interferes with the functioning of magnetometers in phones and navigation systems. Do not bring magnets near a device to avoid damaging the sensors.
Serious injuries
Pinching hazard: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Risk of cracking
Protect your eyes. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.
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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