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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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Physical properties - 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 |
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.
Strengths
- They do not lose strength, even after around 10 years – the decrease in lifting capacity is only ~1% (based on measurements),
- Magnets effectively protect themselves against loss of magnetization caused by ambient magnetic noise,
- In other words, due to the reflective finish of gold, the element gains visual value,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures approaching 230°C and above...
- Considering the possibility of precise forming and adaptation to unique requirements, magnetic components can be produced in a variety of geometric configurations, which makes them more universal,
- Wide application in innovative solutions – they are commonly used in data components, motor assemblies, medical devices, and multitasking production systems.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Cons
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in realizing threads and complicated forms in magnets, we propose using cover - magnetic holder.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these devices can disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Lifting parameters
Maximum lifting force for a neodymium magnet – what affects it?
- using a base made of low-carbon steel, acting as a magnetic yoke
- whose thickness is min. 10 mm
- with a surface perfectly flat
- with total lack of distance (no paint)
- under perpendicular force direction (90-degree angle)
- at ambient temperature room level
Magnet lifting force in use – key factors
- Clearance – existence of foreign body (rust, tape, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Load vector – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
- Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
- Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity was measured with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
H&S for magnets
Electronic devices
Data protection: Strong magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).
Allergy Warning
Some people suffer from a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling may cause dermatitis. We suggest use protective gloves.
Adults only
Absolutely store magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.
Handling guide
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Health Danger
For implant holders: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.
Threat to navigation
Note: rare earth magnets generate a field that interferes with sensitive sensors. Keep a safe distance from your mobile, tablet, and GPS.
Fragile material
Neodymium magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets will cause them shattering into shards.
Combustion hazard
Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Hand protection
Large magnets can crush fingers in a fraction of a second. Do not place your hand between two strong magnets.
Permanent damage
Do not overheat. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, inquire about special high-temperature series (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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