![Plate separator BM 650x180x70 [4x M8]](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Plate separator BM 650x180x70 [4x M8]")
![BM 650x180x70 [4x M8] - magnetic beam](https://cdn3.dhit.pl/graphics/products/bm-650x180x70-4x-m8-laj.jpg)
BM 650x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090222
GTIN/EAN: 5906301812579
length
650 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
41750 g
6131.43 ZŁ with VAT / pcs + price for transport
4984.90 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us now
+48 22 499 98 98
or send us a note using
contact form
our website.
Weight along with appearance of a magnet can be tested with our
magnetic mass calculator.
Order by 14:00 and we’ll ship today!
Technical details - BM 650x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 650x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090222 |
| GTIN/EAN | 5906301812579 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 650 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 41750 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 |
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 |
View more deals
Advantages and disadvantages of rare earth magnets.
Pros
- Their strength is durable, and after around 10 years it drops only by ~1% (according to research),
- They are noted for resistance to demagnetization induced by presence of other magnetic fields,
- By using a lustrous coating of nickel, the element has an nice look,
- Magnetic induction on the surface of the magnet is very high,
- 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 accurate forming and adaptation to unique solutions, magnetic components can be manufactured in a wide range of forms and dimensions, which makes them more universal,
- Wide application in modern industrial fields – they serve a role in computer drives, electric motors, medical equipment, and other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Disadvantages
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Due to limitations in realizing nuts and complicated forms in magnets, we propose using cover - magnetic mount.
- Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small elements of these devices can complicate diagnosis medical when they are in the body.
- With mass production the cost of neodymium magnets is a challenge,
Pull force analysis
Highest magnetic holding force – what it depends on?
- with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
- possessing a thickness of minimum 10 mm to avoid saturation
- characterized by smoothness
- with total lack of distance (no coatings)
- under vertical force vector (90-degree angle)
- at standard ambient temperature
Lifting capacity in real conditions – factors
- Clearance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Angle of force application – highest force is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped into the air.
- Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
- Surface quality – the more even the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Thermal environment – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of NdFeB magnets
Beware of splinters
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
Maximum temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.
Warning for heart patients
Patients with a ICD must keep an safe separation from magnets. The magnetism can disrupt the operation of the implant.
Crushing risk
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!
Magnetic media
Do not bring magnets near a purse, laptop, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.
Nickel coating and allergies
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and use protective gear.
Handling guide
Use magnets with awareness. Their powerful strength can shock even experienced users. Stay alert and respect their power.
GPS and phone interference
GPS units and smartphones are highly sensitive to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Combustion hazard
Fire warning: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.
This is not a toy
Absolutely store magnets out of reach of children. Choking hazard is significant, and the effects of magnets clamping inside the body are very dangerous.
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