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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
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Technical data - 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Advantages and disadvantages of Nd2Fe14B magnets.
Advantages
- Their magnetic field remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
- They maintain their magnetic properties even under external field action,
- In other words, due to the glossy layer of silver, the element is aesthetically pleasing,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to versatility in designing and the capacity to modify to complex applications,
- Wide application in high-tech industry – they are commonly used in computer drives, drive modules, precision medical tools, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets experience a drop in force. 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
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in creating nuts and complex forms in magnets, we propose using cover - magnetic holder.
- Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, tiny parts of these products are able to disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- with the use of a yoke made of special test steel, ensuring maximum field concentration
- with a cross-section minimum 10 mm
- characterized by smoothness
- without the slightest insulating layer between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- in stable room temperature
Practical aspects of lifting capacity – factors
- Clearance – existence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which lowers capacity rapidly (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 maximum force).
- Plate thickness – too thin plate does not accept the full field, causing part of the power to be escaped to the other side.
- Chemical composition of the base – mild steel gives the best results. Higher carbon content reduce magnetic permeability and holding force.
- Surface quality – the smoother and more polished the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.
Precautions when working with NdFeB magnets
Bodily injuries
Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!
Warning for allergy sufferers
A percentage of the population experience a sensitization to nickel, which is the common plating for NdFeB magnets. Frequent touching may cause a rash. We strongly advise use safety gloves.
Electronic hazard
Powerful magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Stay away of min. 10 cm.
Compass and GPS
GPS units and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.
Fire risk
Dust produced during machining of magnets is combustible. Do not drill into magnets unless you are an expert.
Do not overheat magnets
Do not overheat. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).
Magnets are brittle
Neodymium magnets are ceramic materials, meaning they are very brittle. Collision of two magnets leads to them cracking into shards.
Immense force
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
No play value
Product intended for adults. Tiny parts pose a choking risk, causing severe trauma. Store out of reach of children and animals.
Danger to pacemakers
For implant holders: Powerful magnets affect electronics. Maintain minimum 30 cm distance or ask another person to work with the magnets.
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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