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UMGGZ 34x6 [M4] GZ / N38 - rubber magnetic holder external thread
rubber magnetic holder external thread
Catalog no 340311
GTIN/EAN: 5906301814733
Diameter Ø
34 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
26 g
Load capacity
7.70 kg / 75.51 N
9.84 ZŁ with VAT / pcs + price for transport
8.00 ZŁ net + 23% VAT / pcs
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Technical details - UMGGZ 34x6 [M4] GZ / N38 - rubber magnetic holder external thread
Specification / characteristics - UMGGZ 34x6 [M4] GZ / N38 - rubber magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 340311 |
| GTIN/EAN | 5906301814733 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 34 mm [±1 mm] |
| Height | 6 mm [±1 mm] |
| Weight | 26 g |
| Load capacity ~ ? | 7.70 kg / 75.51 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also offers
![UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/um-42x20x9-m8-gz-fof.jpg "UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread")
Advantages as well as disadvantages of Nd2Fe14B magnets.
Benefits
- They do not lose power, even after nearly ten years – the drop in power is only ~1% (based on measurements),
- Magnets perfectly protect themselves against demagnetization caused by foreign field sources,
- In other words, due to the reflective finish of gold, the element is aesthetically pleasing,
- Magnetic induction on the surface of the magnet remains very high,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the capacity to adapt to individual projects,
- Key role in future technologies – they find application in magnetic memories, drive modules, diagnostic systems, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in miniature devices
Weaknesses
- To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in producing nuts and complicated forms in magnets, we propose using casing - magnetic mount.
- Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these devices are able to disrupt the diagnostic process medical after entering the body.
- With large orders the cost of neodymium magnets is economically unviable,
Lifting parameters
Highest magnetic holding force – what contributes to it?
- with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
- with a thickness of at least 10 mm
- characterized by even structure
- under conditions of no distance (metal-to-metal)
- for force applied at a right angle (pull-off, not shear)
- at room temperature
Lifting capacity in practice – influencing factors
- Distance – the presence of foreign body (rust, tape, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly many times smaller (approx. 1/5 of the lifting capacity).
- Steel thickness – too thin steel does not accept the full field, causing part of the flux to be escaped to the other side.
- Steel type – mild steel attracts best. Higher carbon content decrease magnetic properties and holding force.
- Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
- Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity was measured by applying a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate lowers the holding force.
Warnings
Warning for allergy sufferers
It is widely known that nickel (the usual finish) is a common allergen. If your skin reacts to metals, avoid touching magnets with bare hands or choose versions in plastic housing.
Adults only
Always keep magnets away from children. Choking hazard is high, and the consequences of magnets connecting inside the body are tragic.
Phone sensors
A strong magnetic field negatively affects the functioning of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to prevent damaging the sensors.
Flammability
Fire warning: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.
Cards and drives
Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can destroy these devices and wipe information from cards.
Thermal limits
Control the heat. Exposing the magnet to high heat will permanently weaken its properties and strength.
Handling guide
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.
Health Danger
Individuals with a pacemaker must maintain an large gap from magnets. The magnetism can disrupt the operation of the life-saving device.
Magnets are brittle
Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.
Hand protection
Big blocks can break fingers instantly. Under no circumstances put your hand betwixt two strong magnets.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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14.99 ZŁ
InPost Paczkomaty 24/7
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Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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