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UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
magnetic holder rubber internal thread
Catalog no 160307
GTIN/EAN: 5906301813651
Diameter Ø
43 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
29 g
Load capacity
8.70 kg / 85.32 N
10.46 ZŁ with VAT / pcs + price for transport
8.50 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
Specification / characteristics - UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
| properties | values |
|---|---|
| Cat. no. | 160307 |
| GTIN/EAN | 5906301813651 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 43 mm [±1 mm] |
| Height | 6 mm [±1 mm] |
| Weight | 29 g |
| Load capacity ~ ? | 8.70 kg / 85.32 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% |
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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Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- They do not lose power, even during around ten years – the drop in power is only ~1% (theoretically),
- They feature excellent resistance to weakening of magnetic properties due to external fields,
- Thanks to the glossy finish, the surface of Ni-Cu-Ni, gold-plated, or silver gives an professional appearance,
- The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the capacity to adapt to specific needs,
- Key role in innovative solutions – they are utilized in hard drives, drive modules, advanced medical instruments, and multitasking production systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
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 strength 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 stability even at temperatures 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 resistant to moisture, when using outdoors
- Due to limitations in realizing nuts and complex shapes in magnets, we propose using casing - magnetic mount.
- Health risk to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these products can disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum magnetic pulling force – what contributes to it?
- with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
- with a thickness minimum 10 mm
- with an ideally smooth contact surface
- with zero gap (no coatings)
- under perpendicular application of breakaway force (90-degree angle)
- in stable room temperature
Lifting capacity in practice – influencing factors
- Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Material type – the best choice is pure iron steel. Stainless steels may generate lower lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
- Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate reduces the holding force.
Warnings
Threat to navigation
An intense magnetic field disrupts the operation of magnetometers in smartphones and GPS navigation. Keep magnets near a device to avoid breaking the sensors.
Product not for children
Neodymium magnets are not intended for children. Swallowing a few magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates immediate surgery.
Magnet fragility
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.
Demagnetization risk
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
Machining danger
Drilling and cutting of neodymium magnets carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Warning for allergy sufferers
It is widely known that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands and opt for versions in plastic housing.
Safe distance
Intense magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.
Medical implants
For implant holders: Powerful magnets affect electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
Safe operation
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.
Finger safety
Mind your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!
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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