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UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread
magnetic holder external thread
Catalog no 190417
GTIN/EAN: 5906301813880
Diameter Ø
75 mm [±1 mm]
Height
34 mm [±1 mm]
Height
18 mm [±1 mm]
Weight
475 g
Load capacity
162.00 kg / 1588.68 N
189.42 ZŁ with VAT / pcs + price for transport
154.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Weight as well as shape of neodymium magnets can be tested using our
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Technical data - UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread
Specification / characteristics - UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 190417 |
| GTIN/EAN | 5906301813880 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 75 mm [±1 mm] |
| Height | 34 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Weight | 475 g |
| Load capacity ~ ? | 162.00 kg / 1588.68 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Pros as well as cons of neodymium magnets.
Strengths
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- Neodymium magnets remain highly resistant to magnetic field loss caused by external interference,
- By covering with a shiny layer of gold, the element has an modern look,
- Magnetic induction on the working layer of the magnet remains impressive,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Possibility of custom modeling as well as modifying to atypical conditions,
- Huge importance in innovative solutions – they are utilized in magnetic memories, brushless drives, advanced medical instruments, and modern systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Limitations
- At very strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and 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 corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- We suggest casing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small elements of these products are able to be problematic in diagnostics 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 hinders application in large quantities
Lifting parameters
Maximum magnetic pulling force – what affects it?
- using a sheet made of low-carbon steel, serving as a magnetic yoke
- possessing a thickness of at least 10 mm to ensure full flux closure
- with a plane free of scratches
- with total lack of distance (no paint)
- under axial application of breakaway force (90-degree angle)
- in stable room temperature
Determinants of practical lifting force of a magnet
- Clearance – existence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Angle of force application – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Metal type – not every steel reacts the same. High carbon content weaken the attraction effect.
- Plate texture – ground elements ensure maximum contact, which improves force. Rough surfaces weaken the grip.
- Temperature – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet’s surface and the plate decreases the holding force.
Warnings
Beware of splinters
NdFeB magnets are ceramic materials, meaning they are very brittle. Collision of two magnets leads to them shattering into small pieces.
Skin irritation risks
Studies show that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from direct skin contact and choose encased magnets.
Do not drill into magnets
Combustion risk: Rare earth powder is explosive. Avoid machining magnets without safety gear as this may cause fire.
Danger to pacemakers
For implant holders: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
Compass and GPS
Navigation devices and mobile phones are extremely susceptible to magnetic fields. Direct contact with a strong magnet can permanently damage the sensors in your phone.
Power loss in heat
Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Protect data
Device Safety: Strong magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).
Physical harm
Risk of injury: The pulling power is so immense that it can cause hematomas, crushing, and broken bones. Use thick gloves.
Handling rules
Use magnets consciously. Their immense force can surprise even experienced users. Stay alert and do not underestimate their force.
Swallowing risk
Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which constitutes a critical condition and necessitates immediate surgery.
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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