UMGZ 60x30x15 [M10] GZ / N38 - magnetic holder external thread
magnetic holder external thread
Catalog no 190416
GTIN/EAN: 5906301813873
- Diameter Ø
- 60 mm [±1 mm]
- Height
- 30 mm [±1 mm]
- Height
- 15 mm [±1 mm]
- Weight
- 260 g
- Coating
- [NiCuNi] Nickel
83.70 zł net / pcs
102.95 zł with VAT (23% VAT) / pcs
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Technical specification of the product - UMGZ 60x30x15 [M10] GZ / N38 - magnetic holder external thread
Specification / characteristics - UMGZ 60x30x15 [M10] GZ / N38 - magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 190416 |
| GTIN/EAN | 5906301813873 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 60 mm [±1 mm] |
| Height | 30 mm [±1 mm] |
| Height | 15 mm [±1 mm] |
| Weight | 260 g |
| Load capacity ~ ? | 140.00 kg / 1372.93 N |
| Coating | [NiCuNi] Nickel |
| 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 | 310 | °C |
| Curie Temperature TF | 590 | °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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Pros and cons of neodymium magnets.
Benefits
- They retain attractive force for almost 10 years – the drop is just ~1% (in theory),
- They retain their magnetic properties even under close interference source,
- Thanks to the metallic finish, the surface of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
- They show high magnetic induction at the operating surface, making them more effective,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of individual modeling and adjusting to specific conditions,
- Universal use in future technologies – they are commonly used in data components, electric motors, medical equipment, also technologically advanced constructions.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Cons
- At very 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 decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. 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, in case of application outdoors
- We recommend a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated forms.
- Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small elements of these devices can be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets is economically unviable,
Lifting parameters
Detachment force of the magnet in optimal conditions – what affects it?
- with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
- with a cross-section no less than 10 mm
- with a plane free of scratches
- with total lack of distance (no coatings)
- during pulling in a direction vertical to the plane
- at ambient temperature approx. 20 degrees Celsius
Impact of factors on magnetic holding capacity in practice
- Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Base massiveness – too thin sheet does not close the flux, causing part of the flux to be lost into the air.
- Chemical composition of the base – low-carbon steel gives the best results. Alloy steels decrease magnetic properties and lifting capacity.
- Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.
H&S for magnets
Risk of cracking
Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Flammability
Mechanical processing of neodymium magnets poses a fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Crushing force
Watch your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying everything in their path. Be careful!
Medical implants
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Choking Hazard
NdFeB magnets are not suitable for play. Accidental ingestion of multiple magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates immediate surgery.
Immense force
Exercise caution. Neodymium magnets act from a distance and snap with massive power, often quicker than you can react.
Warning for allergy sufferers
Some people have a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Frequent touching might lead to skin redness. It is best to wear protective gloves.
Precision electronics
Remember: rare earth magnets produce a field that disrupts precision electronics. Keep a separation from your phone, device, and navigation systems.
Electronic hazard
Intense magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Stay away of at least 10 cm.
Heat sensitivity
Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its properties and strength.
