UMGGZ 43x6 [M6] GZ / N38 - rubber magnetic holder external thread
rubber magnetic holder external thread
Catalog no 340312
GTIN/EAN: 5906301814740
Diameter Ø
43 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
36 g
Load capacity
8.70 kg / 85.32 N
10.46 ZŁ with VAT / pcs + price for transport
8.50 ZŁ net + 23% VAT / pcs
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Detailed specification - UMGGZ 43x6 [M6] GZ / N38 - rubber magnetic holder external thread
Specification / characteristics - UMGGZ 43x6 [M6] GZ / N38 - rubber magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 340312 |
| GTIN/EAN | 5906301814740 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 43 mm [±1 mm] |
| Height | 6 mm [±1 mm] |
| Weight | 36 g |
| Load capacity ~ ? | 8.70 kg / 85.32 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 proposals
Advantages as well as disadvantages of neodymium magnets.
Benefits
- Their power is durable, and after around 10 years it decreases only by ~1% (according to research),
- They retain their magnetic properties even under external field action,
- A magnet with a metallic nickel surface has an effective appearance,
- Magnets have excellent magnetic induction on the surface,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of individual machining as well as adjusting to precise applications,
- Versatile presence in modern technologies – they find application in data components, electric drive systems, diagnostic systems, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions
Disadvantages
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
- We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
- Due to complex production process, their price is relatively high,
Holding force characteristics
Maximum magnetic pulling force – what affects it?
- on a block made of structural steel, effectively closing the magnetic field
- possessing a massiveness of min. 10 mm to ensure full flux closure
- with an ideally smooth touching surface
- without any insulating layer between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- at temperature room level
Lifting capacity in real conditions – factors
- Clearance – existence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Steel grade – the best choice is high-permeability steel. Stainless steels may attract less.
- Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
- Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, in contrast under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.
Precautions when working with neodymium magnets
Handling rules
Exercise caution. Neodymium magnets attract from a long distance and snap with massive power, often quicker than you can move away.
Warning for heart patients
Patients with a pacemaker must maintain an large gap from magnets. The magnetic field can stop the operation of the life-saving device.
Beware of splinters
NdFeB magnets are ceramic materials, meaning they are fragile like glass. Clashing of two magnets will cause them cracking into small pieces.
Metal Allergy
Certain individuals suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact may cause skin redness. We recommend use safety gloves.
Machining danger
Machining of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Power loss in heat
Keep cool. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Keep away from children
These products are not toys. Eating several magnets can lead to them attracting across intestines, which constitutes a direct threat to life and necessitates urgent medical intervention.
Physical harm
Risk of injury: The attraction force is so immense that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.
Magnetic media
Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).
Phone sensors
Remember: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your phone, device, and navigation systems.
