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neodymium magnets

We offer red color magnets Nd2Fe14B - our store's offer. All "neodymium magnets" in our store are in stock for immediate purchase (check the list). See the magnet price list for more details check the magnet price list

Magnets for fishing F200 GOLD

Where to buy strong magnet? Holders with magnets in solid and airtight steel casing are perfect for use in variable and difficult climate conditions, including during snow and rain read

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Magnetic holders can be used to facilitate production, underwater discoveries, or locating meteors from gold read...

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BM 950x180x70 [4x M8] - magnetic beam

magnetic beam

Catalog no 090225

GTIN: 5906301812609

5

length

950 mm [±1 mm]

Width

180 mm [±1 mm]

Height

70 mm [±1 mm]

Weight

61000 g

8564.49 with VAT / pcs + price for transport

6963.00 ZŁ net + 23% VAT / pcs

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BM 950x180x70 [4x M8] - magnetic beam
Specification/characteristics BM 950x180x70 [4x M8] - magnetic beam
properties
values
Cat. no.
090225
GTIN
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

Magnetic properties of material

properties
values
units

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 106
°C-1
Thermal expansion perpendicular (⊥) to orientation (M)
-(1-3) x 10-6
°C-1
Young's modulus
1.7 x 104
kg/mm²

Shopping tips

A magnetic beam (plate separator) is a powerful industrial magnet in a stainless steel housing. It can also be mounted in a gravity channel down which raw material falls. Ensures high quality of the final product in plastic recycling, wood, and the food industry.
Ferrite separators are characterized by a deep, penetrating magnetic field. They work well in initial separation in recycling and mining. Neodymiums are unrivaled in catching fine filings, wires, and small screws. The decision should be made based on the type of separated material and cleanliness requirements.
The separator housing is high-quality stainless steel, welded by TIG method. This guarantees hygiene and ease of cleaning, which is crucial in the food industry. The product meets standards for the food industry (HACCP/IFS/BRC).
Cleaning a plate separator (static) is done manually. Scrap is removed by mechanically moving it to the edge, where the magnetic field is weaker. Cleaning frequency depends on the amount of contaminants in the product - the more metal, the more often you need to clean.
We can produce a magnetic block perfectly matched to your installation and requirements. Dimensions and mounting system are agreed with the client at the design stage. Contact us to receive a free quote and technical drawing.

Advantages as well as disadvantages of NdFeB magnets.

Apart from their superior magnetism, neodymium magnets have these key benefits:

  • They have stable power, and over more than 10 years their attraction force decreases symbolically – ~1% (in testing),
  • They retain their magnetic properties even under external field action,
  • A magnet with a shiny gold surface is more attractive,
  • They feature high magnetic induction at the operating surface, which increases their power,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to modularity in designing and the capacity to customize to specific needs,
  • Significant place in advanced technology sectors – they are commonly used in magnetic memories, electric motors, precision medical tools, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in miniature devices

Disadvantages of neodymium magnets:

  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 very resistant to heat
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Limited ability of making threads in the magnet and complex shapes - preferred is a housing - magnet mounting.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Best holding force of the magnet in ideal parameterswhat contributes to it?

The load parameter shown concerns the peak performance, obtained under laboratory conditions, namely:

  • using a plate made of high-permeability steel, functioning as a ideal flux conductor
  • whose thickness is min. 10 mm
  • with a plane cleaned and smooth
  • with total lack of distance (no impurities)
  • during detachment in a direction perpendicular to the mounting surface
  • at temperature room level

Lifting capacity in real conditions – factors

Holding efficiency impacted by working environment parameters, mainly (from priority):

  • Distance (betwixt the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
  • Load vector – highest force is reached only during perpendicular pulling. The resistance to sliding 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 sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Chemical composition of the base – mild steel gives the best results. Higher carbon content decrease magnetic permeability and lifting capacity.
  • Smoothness – ideal contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
  • Temperature – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

* Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under shearing force the load capacity is reduced by as much as 75%. In addition, even a slight gap {between} the magnet and the plate lowers the load capacity.

Warnings

Shattering risk

Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.

Respect the power

Be careful. Neodymium magnets attract from a distance and connect with massive power, often quicker than you can move away.

Heat sensitivity

Control the heat. Exposing the magnet to high heat will permanently weaken its properties and pulling force.

Adults only

Absolutely keep magnets away from children. Choking hazard is high, and the effects of magnets connecting inside the body are very dangerous.

Threat to navigation

Navigation devices and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Pacemakers

Warning for patients: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or request help to work with the magnets.

Avoid contact if allergic

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease handling magnets and use protective gear.

Machining danger

Mechanical processing of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Safe distance

Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, medical aids, mechanical watches).

Hand protection

Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

Security!

Need more info? Check our post: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98