![Rubber coated magnetic holder UMGGZ 88x8.5 [M8] GZ / N38](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Rubber coated magnetic holder UMGGZ 88x8.5 [M8] GZ / N38")
![UMGGZ 88x8.5 [M8] GZ / N38 - rubber magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umg-88x8.5-m8-gz-waf.jpg)
UMGGZ 88x8.5 [M8] GZ / N38 - rubber magnetic holder external thread
rubber magnetic holder external thread
Catalog no 340313
GTIN/EAN: 5906301814757
Diameter Ø
88 mm [±1 mm]
Height
8.5 mm [±1 mm]
Weight
193 g
Load capacity
42.90 kg / 420.71 N
40.59 ZŁ with VAT / pcs + price for transport
33.00 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us
+48 888 99 98 98
if you prefer drop us a message via
contact form
the contact page.
Specifications along with form of neodymium magnets can be checked on our
power calculator.
Orders submitted before 14:00 will be dispatched today!
Product card - UMGGZ 88x8.5 [M8] GZ / N38 - rubber magnetic holder external thread
Specification / characteristics - UMGGZ 88x8.5 [M8] GZ / N38 - rubber magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 340313 |
| GTIN/EAN | 5906301814757 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 88 mm [±1 mm] |
| Height | 8.5 mm [±1 mm] |
| Weight | 193 g |
| Load capacity ~ ? | 42.90 kg / 420.71 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 |
Elemental analysis
| 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 proposals
![SM 18x300 [2xM5] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-18x300-2xm5-xad.jpg "SM 18x300 [2xM5] / N42 - magnetic separator")
Pros as well as cons of neodymium magnets.
Advantages
- They retain magnetic properties for almost ten years – the loss is just ~1% (based on simulations),
- They do not lose their magnetic properties even under close interference source,
- In other words, due to the glossy layer of gold, the element gains a professional look,
- Magnets possess impressive magnetic induction on the outer layer,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Due to the possibility of precise forming and adaptation to specialized needs, magnetic components can be produced in a broad palette of shapes and sizes, which amplifies use scope,
- Huge importance in advanced technology sectors – they serve a role in HDD drives, electromotive mechanisms, medical devices, as well as other advanced devices.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
- NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- We recommend cover - magnetic mount, due to difficulties in producing threads inside the magnet and complex shapes.
- Possible danger 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 devices can complicate diagnosis medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum lifting capacity of the magnet – what affects it?
- with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- possessing a thickness of minimum 10 mm to avoid saturation
- with an ideally smooth touching surface
- with zero gap (without paint)
- under perpendicular force vector (90-degree angle)
- at conditions approx. 20°C
Lifting capacity in practice – influencing factors
- Gap between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Alloy steels reduce magnetic properties and holding force.
- Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet and the plate decreases the load capacity.
Precautions when working with NdFeB magnets
Material brittleness
Watch out for shards. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Physical harm
Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and broken bones. Use thick gloves.
Allergic reactions
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness appears, immediately stop working with magnets and wear gloves.
Power loss in heat
Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Impact on smartphones
A powerful magnetic field negatively affects the operation of compasses in phones and GPS navigation. Keep magnets near a smartphone to avoid damaging the sensors.
Safe distance
Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.
Conscious usage
Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
Do not give to children
These products are not intended for children. Swallowing several magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and necessitates immediate surgery.
Health Danger
People with a ICD must keep an large gap from magnets. The magnetic field can disrupt the functioning of the implant.
Flammability
Dust generated during cutting of magnets is combustible. Do not drill into magnets unless you are an expert.
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
Rate the product
Your rating