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UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
magnetic holder rubber internal thread
Catalog no 160304
GTIN/EAN: 5906301813620
Diameter Ø
22 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
12 g
Load capacity
5.10 kg / 50.01 N
7.38 ZŁ with VAT / pcs + price for transport
6.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical of the product - UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
Specification / characteristics - UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
| properties | values |
|---|---|
| Cat. no. | 160304 |
| GTIN/EAN | 5906301813620 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 22 mm [±1 mm] |
| Height | 6 mm [±1 mm] |
| Weight | 12 g |
| Load capacity ~ ? | 5.10 kg / 50.01 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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Pros as well as cons of Nd2Fe14B magnets.
Strengths
- They have constant strength, and over more than ten years their performance decreases symbolically – ~1% (in testing),
- They are resistant to demagnetization induced by external field influence,
- A magnet with a shiny nickel surface looks better,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
- Thanks to versatility in forming and the ability to modify to client solutions,
- Versatile presence in innovative solutions – they are commonly used in mass storage devices, motor assemblies, precision medical tools, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which makes them useful in small systems
Limitations
- Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets experience 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
- They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- We suggest casing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex forms.
- Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Holding force characteristics
Maximum holding power of the magnet – what contributes to it?
- on a plate made of mild steel, perfectly concentrating the magnetic field
- whose thickness equals approx. 10 mm
- with an polished touching surface
- without the slightest insulating layer between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at room temperature
Lifting capacity in real conditions – factors
- Clearance – the presence of any layer (rust, dirt, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
- Plate thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped to the other side.
- Metal type – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
- Smoothness – full contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Lifting capacity was determined with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.
Warnings
Do not underestimate power
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.
Nickel allergy
Medical facts indicate that nickel (standard magnet coating) is a common allergen. If your skin reacts to metals, prevent touching magnets with bare hands or choose coated magnets.
Implant safety
For implant holders: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or ask another person to work with the magnets.
Safe distance
Data protection: Strong magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).
Protective goggles
NdFeB magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets leads to them breaking into shards.
Magnetic interference
Remember: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a separation from your phone, tablet, and navigation systems.
Pinching danger
Large magnets can smash fingers instantly. Under no circumstances put your hand betwixt two attracting surfaces.
Maximum temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.
Dust is flammable
Fire warning: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Danger to the youngest
Only for adults. Tiny parts can be swallowed, causing intestinal necrosis. Keep out of reach of children and animals.
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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