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BM 950x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090225
GTIN/EAN: 5906301812609
length
950 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
61000 g
8564.49 ZŁ with VAT / pcs + price for transport
6963.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Specifications along with appearance of neodymium magnets can be checked using our
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Detailed specification - BM 950x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 950x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090225 |
| GTIN/EAN | 5906301812609 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 950 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 61000 g |
| Manufacturing Tolerance | ±1 mm |
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages as well as disadvantages of neodymium magnets.
Pros
- They do not lose strength, even after nearly 10 years – the drop in power is only ~1% (according to tests),
- They do not lose their magnetic properties even under strong external field,
- Thanks to the glossy finish, the plating of Ni-Cu-Ni, gold, or silver gives an clean appearance,
- Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of accurate creating and optimizing to defined needs,
- Universal use in innovative solutions – they are utilized in mass storage devices, electromotive mechanisms, advanced medical instruments, also industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We recommend casing - magnetic mount, due to difficulties in producing threads inside the magnet and complex shapes.
- Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child safety. Additionally, small elements of these devices can complicate diagnosis medical after entering the body.
- Due to complex production process, their price is higher than average,
Pull force analysis
Maximum magnetic pulling force – what affects it?
- with the contact of a yoke made of special test steel, guaranteeing maximum field concentration
- possessing a thickness of minimum 10 mm to ensure full flux closure
- characterized by smoothness
- with direct contact (no paint)
- during pulling in a direction vertical to the plane
- in stable room temperature
Key elements affecting lifting force
- Clearance – existence of foreign body (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Load vector – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Plate material – mild steel attracts best. Alloy admixtures lower magnetic permeability and holding force.
- Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal reduce efficiency.
- Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate lowers the holding force.
Warnings
Compass and GPS
GPS units and smartphones are highly sensitive to magnetism. Direct contact with a strong magnet can permanently damage the internal compass in your phone.
Pinching danger
Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!
This is not a toy
Neodymium magnets are not toys. Eating a few magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires immediate surgery.
Nickel allergy
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction occurs, immediately stop handling magnets and use protective gear.
Danger to pacemakers
For implant holders: Powerful magnets disrupt electronics. Maintain minimum 30 cm distance or request help to handle the magnets.
Dust is flammable
Combustion risk: Rare earth powder is highly flammable. Do not process magnets in home conditions as this may cause fire.
Shattering risk
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Thermal limits
Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.
Respect the power
Be careful. Rare earth magnets act from a distance and snap with massive power, often quicker than you can react.
Data carriers
Very strong magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.
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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