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neodymium magnets

We provide blue color magnets Nd2Fe14B - our proposal. Practically all magnesy on our website are available for immediate delivery (see the list). See the magnet price list for more details check the magnet price list

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SMZR 32x225 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140468

GTIN: 5906301813521

5

Diameter Ø

32 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

1245 g

Magnetic Flux

~ 10 000 Gauss [±5%]

676.50 with VAT / pcs + price for transport

550.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
550.00 ZŁ
676.50 ZŁ
price from 5 pcs
484.00 ZŁ
595.32 ZŁ

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Give us a call +48 888 99 98 98 alternatively let us know by means of inquiry form our website.
Force as well as shape of neodymium magnets can be calculated on our force calculator.

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SMZR 32x225 / N52 - magnetic separator with handle
Specification/characteristics SMZR 32x225 / N52 - magnetic separator with handle
properties
values
Cat. no.
140468
GTIN
5906301813521
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
32 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
1245 g
Material Type
Stainless steel AISI 304 / A2
Magnetic Flux
~ 10 000 Gauss [±5%]
Size/Mount Quantity
2xM8
Polarity
circumferential - 7 poles
Casing Tube Thickness
1 mm
Manufacturing Tolerance
±1 mm

Magnetic properties of material N52

properties
values
units
remenance Br [Min. - Max.] ?
14.2-14.7
kGs
remenance Br [Min. - Max.] ?
1420-1470
T
coercivity bHc ?
10.8-12.5
kOe
coercivity bHc ?
860-995
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.] ?
48-53
BH max MGOe
energy density [Min. - Max.] ?
380-422
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 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 manual separator is a basic tool for quick identification and sorting of metals. It allows checking if a given item is ferromagnetic (steel, cast iron) or not (aluminum, copper, stainless steel). It is also useful for pulling small steel elements from crates, ash, sand, or sawdust.
A neodymium magnet attracts only ferromagnetic metals, such as ordinary steel (black) and cast iron. Lack of reaction (attraction) means the tested item is made of non-magnetic material.
The neodymium model offers powerful force with low weight, which drastically reduces hand fatigue. Thanks to this, work is more comfortable, and detection faster and more certain. The neodymium version is currently the standard in professional scrap yards.
The neodymium magnet is enclosed in a solid, metal housing (steel or brass). A solid handle (wooden, rubber, or plastic) ensures a firm and comfortable grip. The tool is durable, drop-resistant, and prepared for hard work.
It is a simple and reliable construction without moving parts, so cleaning consists of removing scrap. If you are looking for automatic dropping, ask about models with a magnetic release system. The sliding technique is more effective and requires less force than perpendicular tearing.

Strengths and weaknesses of NdFeB magnets.

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

  • They have unchanged lifting capacity, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
  • They are extremely resistant to demagnetization induced by external field influence,
  • By using a smooth coating of gold, the element gains an nice look,
  • Magnets possess extremely high magnetic induction on the working surface,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • In view of the ability of free forming and adaptation to unique needs, NdFeB magnets can be manufactured in a wide range of geometric configurations, which makes them more universal,
  • Significant place in innovative solutions – they are commonly used in computer drives, brushless drives, advanced medical instruments, and modern systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

What to avoid - cons of neodymium magnets and ways of using them

  • At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in realizing nuts and complicated forms in magnets, we recommend using casing - magnetic holder.
  • Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical after entering the body.
  • Due to neodymium price, their price is higher than average,

Best holding force of the magnet in ideal parameterswhat it depends on?

The load parameter shown refers to the limit force, obtained under ideal test conditions, namely:

  • on a base made of structural steel, optimally conducting the magnetic field
  • with a cross-section of at least 10 mm
  • with an ground touching surface
  • under conditions of gap-free contact (metal-to-metal)
  • under perpendicular force vector (90-degree angle)
  • in temp. approx. 20°C

Practical lifting capacity: influencing factors

Please note that the working load may be lower influenced by the following factors, starting with the most relevant:

  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Load vector – highest force is available only during perpendicular pulling. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Metal type – different alloys attracts identically. High carbon content weaken the interaction with the magnet.
  • Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
  • Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

* Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance {between} the magnet’s surface and the plate decreases the lifting capacity.

Warnings

Serious injuries

Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying anything in their path. Exercise extreme caution!

Impact on smartphones

Navigation devices and smartphones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Safe operation

Handle with care. Rare earth magnets act from a long distance and snap with massive power, often quicker than you can react.

Product not for children

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

Implant safety

Individuals with a pacemaker must keep an absolute distance from magnets. The magnetism can disrupt the operation of the implant.

Operating temperature

Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Nickel allergy

A percentage of the population suffer from a contact allergy to Ni, which is the standard coating for NdFeB magnets. Prolonged contact might lead to an allergic reaction. It is best to use protective gloves.

Fragile material

Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Data carriers

Do not bring magnets close to a purse, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.

Combustion hazard

Fire hazard: Rare earth powder is highly flammable. Do not process magnets in home conditions as this may cause fire.

Safety First!

Learn more about hazards in the article: Safety of working with magnets.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98