e-mail: bok@dhit.pl

neodymium magnets

We offer yellow color magnets Nd2Fe14B - our store's offer. Practically all magnesy on our website are in stock for immediate purchase (see the list). Check out the magnet pricing for more details check the magnet price list

Magnets for water searching F300 GOLD

Where to buy very strong neodymium magnet? Holders with magnets in airtight and durable enclosure are perfect for use in difficult weather, including during rain and snow read...

magnets with holders

Magnetic holders can be applied to enhance production processes, underwater exploration, or finding meteors from gold see more...

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magnetic rollers

Magnetic Separators

magnetic rollers

The term magnetic separator refers to neodymium magnets enclosed in a cylindrical casing made of acid-resistant steel PN:0H18N9 (AISI 304) or PN: 00H17N14M2 (AISI 3016L). Often used as magnetic inserts in magnetic filters for designing independent magnetic separators. They are always, used wherever there is a need for ferromagnetic separation of liquid and powdery materials, primarily in the food industry, plastic processing, or ceramics.

magnetic separators

How to remove iron filings attached to a neodymium magnet (rod, separator)?

They can be easily removed by tapping them with adhesive tape. Another option is to blow them off with a compressor.

magnetic separators

Maintenance and replacement interval

The stainless steel housing has a thickness of 1.5mm. It may become thinner due to the hardness of the magnetic substance and contact friction. Although the built-in magnets are permanent magnets, they have been embedded by applying resistive load. Therefore, even if the magnets are used within the specified heat resistance temperature, they may demagnetize over time due to repeated stress associated with fluctuations between hot and cold temperatures. There is no specific replacement period, but we recommend conducting regular tests for magnetic flux density and surface appearance.

What is the recommended distance between individual neodymium rod separators?

The distance between the rods is important during their arrangement. Adjust the processing speed according to your productivity based on the distance between the rods. The distance depends on the type of magnetic substance you want to process and the speed at which you operate. 

magnetic separators

Introduction at the beginning

magnetic separators

10 minutes later

magnetic separators

How often is maintenance and replacement of magnetic inserts required?

The stainless steel housing has a thickness of 1.5mm, and it can be made thinner, but we do not recommend it due to rapid wear (abrasion). It may become thinner due to the hardness of the magnetic substance and contact friction. Although the built-in magnets are permanent (neodymium) magnets, they have been embedded by applying resistive load. Therefore, even if the magnets are used within the specified heat resistance temperature, they may demagnetize over time due to repeated stress associated with fluctuations between hot and cold temperatures. There is no specific replacement period, but we recommend conducting regular tests for magnetic flux density and surface appearance. 

Narrow spaces

This will be an accurate filter, and the processing speed for separating magnetic substances will be low.

Wide spaces

This will be a rougher filter, and the processing speed for separating magnetic substances will be higher.

  • In such cases, the roughness of the filter and the processing speed can be improved by using more than 2 layers of magnetic filters.
  • If there are multiple layers with narrow spaces between the rods, although the processing speed will be slower, the attraction capacity will increase.
Distance Between Bars
Recommended Distance
Grain Filtering
Attraction Capacity
Processing Speed
Narrow
40mm
Good, Thin
Wide
50mm
Rough, Thick

Magnetic Separators (Rollers, Filters) are used to separate metals in food production and recycling.

Our magnetic rollers consist of neodymium magnets placed in a stainless steel housing. They are widely used for removing iron powder during the separation of metals from other waste materials in recycling, food production, and spinning. By using neodymium magnets as a magnetic separator, we prevent metal contaminants (iron scrap or fine iron powder, etc.) from getting into the food. M8 threaded holes are located on both ends, making it easy to mount them on machines (drawers). Choose the external housing, magnetic flux density on the surface, and heat resistance specifications that are suitable for your needs.

They capture even the smallest pieces of iron powder, shot, and needles.

They capture even the smallest pieces of iron powder, shot, and needles.

Roller Cleaning
Roller Cleaning
Roller Cleaning
Roller Cleaning

They can be custom made to fit the required length, heat resistance, and pole spacing.

Upon individual request, we can produce rod magnets with millimeter tolerance (min. ±0.5mm).

  • Heat resistance of 200°C (1 tesla, 10,000 gauss)
  • Ultra high magnetism (1.4 tesla, 14,000 gauss)
  • Very narrow pitch (thickness of 5mm, 10mm, mounted 15mm)
  • Compatible with specifications of all types

We also accept orders for magnetic separators, products utilizing magnetic filters, and rod magnets in the shape of cubes.

For clients considering magnetic separators / magnetic filters but concerned about the installation process, we will provide explanations and assistance. Do not hesitate to ask us. We can also offer technical advice.

shaft construction

Procedure for producing magnetic shaft separators

Our magnetic separators are handmade by our skilled workers (we possess international welding certificates for methods 141, 142, 143, 145).

shaft creation process

List of properties for magnetic separators and filters

Surface Induction Density
Adsorption Point
Fine Powder, Iron Powder
Short-Range Attraction Capability
Long-Range Attraction Capability
Distance
Touched Area
9000 - 12000 Gauss
12000 - 15000 Gauss

Magnetic Separator Strength

Surface Induction Density (Pole)
Grain Filtering
Object
Target
9000 - 12000 Gauss
Good, thin
Fine powder and powdered iron
Shavings, iron dust, needles
Small objects
Small objects
12000 - 15000 Gauss
Rough, thick
Screws, clips
Large objects
Big items

Magnetic filters are made of non-magnetic steel (304 stainless steel):

External Casing
Corrosion Resistance

More information about which magnetic separator will be best for you can be found in the how-to section on magnetic separators.

Subcategories:



number of products: 70

Product available shipping tomorrow!

SM 18x100 [2xM5] / N42 - magnetic roller

catalog number 130269

5.0

diameter Ø

18 mm [±0,1 mm]

height

100 mm [±0,1 mm]

221.40 PLN with VAT gross price / pcs

180.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
180.00 PLN
221.40 PLN
price from 13 pcs
171.00 PLN
210.33 PLN
price from 25 pcs
162.00 PLN
199.26 PLN
Product available shipping tomorrow!

SM 25x100 [2xM8] / N42 - magnetic roller

catalog number 130287

5.0

diameter Ø

25 mm [±0,1 mm]

height

100 mm [±0,1 mm]

246.00 PLN with VAT gross price / pcs

200.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
200.00 PLN
246.00 PLN
price from 11 pcs
190.00 PLN
233.70 PLN
price from 22 pcs
180.00 PLN
221.40 PLN
Product available shipping tomorrow!

SM 18x125 [2xM5] / N42 - magnetic roller

catalog number 130270

5.0

diameter Ø

18 mm [±0,1 mm]

height

125 mm [±0,1 mm]

276.75 PLN with VAT gross price / pcs

225.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
225.00 PLN
276.75 PLN
price from 10 pcs
213.75 PLN
262.91 PLN
price from 20 pcs
202.50 PLN
249.07 PLN
Product available shipping tomorrow!

SM 32x100 [2xM8] / N42 - magnetic roller

catalog number 130296

no reviews

diameter Ø

32 mm [±0,1 mm]

height

100 mm [±0,1 mm]

307.50 PLN with VAT gross price / pcs

250.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
250.00 PLN
307.50 PLN
price from 9 pcs
237.50 PLN
292.12 PLN
price from 18 pcs
225.00 PLN
276.75 PLN
Product available shipping tomorrow!

SM 25x100 [2xM8] / N52 - magnetic roller

catalog number 130366

5.0

diameter Ø

25 mm [±0,1 mm]

height

100 mm [±0,1 mm]

319.80 PLN with VAT gross price / pcs

260.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
260.00 PLN
319.80 PLN
price from 9 pcs
247.00 PLN
303.81 PLN
price from 17 pcs
234.00 PLN
287.82 PLN
Product available shipping tomorrow!

SM 25x125 [2xM8] / N42 - magnetic roller

catalog number 130288

no reviews

diameter Ø

25 mm [±0,1 mm]

height

125 mm [±0,1 mm]

319.80 PLN with VAT gross price / pcs

260.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
260.00 PLN
319.80 PLN
price from 9 pcs
247.00 PLN
303.81 PLN
price from 17 pcs
234.00 PLN
287.82 PLN
Product available shipping tomorrow!

SM 18x150 [2xM5] / N42 - magnetic roller

catalog number 130271

no reviews

diameter Ø

18 mm [±0,1 mm]

height

150 mm [±0,1 mm]

332.10 PLN with VAT gross price / pcs

270.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
270.00 PLN
332.10 PLN
price from 9 pcs
256.50 PLN
315.50 PLN
price from 17 pcs
243.00 PLN
298.89 PLN
Product available shipping tomorrow!

SM 32x100 [2xM8] / N52 - magnetic roller

catalog number 130356

no reviews

diameter Ø

32 mm [±0,1 mm]

height

100 mm [±0,1 mm]

381.30 PLN with VAT gross price / pcs

310.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
310.00 PLN
381.30 PLN
price from 8 pcs
294.50 PLN
362.24 PLN
price from 15 pcs
279.00 PLN
343.17 PLN
Product available shipping tomorrow!

SM 32x125 [2xM8] / N42 - magnetic roller

catalog number 130352

no reviews

diameter Ø

32 mm [±0,1 mm]

height

125 mm [±0,1 mm]

381.30 PLN with VAT gross price / pcs

310.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
310.00 PLN
381.30 PLN
price from 8 pcs
294.50 PLN
362.24 PLN
price from 15 pcs
279.00 PLN
343.17 PLN
Product available shipping tomorrow!

SM 18x175 [2xM5] / N42 - magnetic roller

catalog number 130272

no reviews

diameter Ø

18 mm [±0,1 mm]

height

175 mm [±0,1 mm]

387.45 PLN with VAT gross price / pcs

315.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
315.00 PLN
387.45 PLN
price from 7 pcs
299.25 PLN
368.08 PLN
price from 14 pcs
283.50 PLN
348.70 PLN
Product available shipping tomorrow!

SM 25x125 [2xM8] / N52 - magnetic roller

catalog number 130367

no reviews

diameter Ø

25 mm [±0,1 mm]

height

125 mm [±0,1 mm]

393.60 PLN with VAT gross price / pcs

320.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
320.00 PLN
393.60 PLN
price from 7 pcs
304.00 PLN
373.92 PLN
price from 14 pcs
288.00 PLN
354.24 PLN
Product available shipping tomorrow!

SM 25x150 [2xM8] / N42 - magnetic roller

catalog number 130289

5.0

diameter Ø

25 mm [±0,1 mm]

height

150 mm [±0,1 mm]

393.60 PLN with VAT gross price / pcs

320.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
320.00 PLN
393.60 PLN
price from 7 pcs
304.00 PLN
373.92 PLN
price from 14 pcs
288.00 PLN
354.24 PLN
Product available shipping tomorrow!

SM 18x200 [2xM5] / N42 - magnetic roller

catalog number 130273

no reviews

diameter Ø

18 mm [±0,1 mm]

height

200 mm [±0,1 mm]

442.80 PLN with VAT gross price / pcs

360.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
360.00 PLN
442.80 PLN
price from 7 pcs
342.00 PLN
420.66 PLN
price from 13 pcs
324.00 PLN
398.52 PLN
Product available shipping tomorrow!

SM 32x125 [2xM8] / N52 - magnetic roller

catalog number 130357

no reviews

diameter Ø

32 mm [±0,1 mm]

height

125 mm [±0,1 mm]

455.10 PLN with VAT gross price / pcs

370.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
370.00 PLN
455.10 PLN
price from 6 pcs
351.50 PLN
432.34 PLN
price from 12 pcs
333.00 PLN
409.59 PLN
Product available shipping tomorrow!

SM 32x150 [2xM8] / N42 - magnetic roller

catalog number 130297

5.0

diameter Ø

32 mm [±0,1 mm]

height

150 mm [±0,1 mm]

455.10 PLN with VAT gross price / pcs

370.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
370.00 PLN
455.10 PLN
price from 6 pcs
351.50 PLN
432.34 PLN
price from 12 pcs
333.00 PLN
409.59 PLN
Product available shipping tomorrow!

SM 25x175 [2xM8] / N42 - magnetic roller

catalog number 130290

no reviews

diameter Ø

25 mm [±0,1 mm]

height

175 mm [±0,1 mm]

467.40 PLN with VAT gross price / pcs

380.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
380.00 PLN
467.40 PLN
price from 6 pcs
361.00 PLN
444.03 PLN
price from 12 pcs
342.00 PLN
420.66 PLN
Product available shipping tomorrow!

SM 25x150 [2xM8] / N52 - magnetic roller

catalog number 130368

5.0

diameter Ø

25 mm [±0,1 mm]

height

150 mm [±0,1 mm]

467.40 PLN with VAT gross price / pcs

380.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
380.00 PLN
467.40 PLN
price from 6 pcs
361.00 PLN
444.03 PLN
price from 12 pcs
342.00 PLN
420.66 PLN
Product available shipping tomorrow!

SM 19x225 [2xM6] / N50 - magnetic roller

catalog number 130241

5.0

diameter Ø

19 mm [±0,1 mm]

height

225 mm [±0,1 mm]

492.00 PLN with VAT gross price / pcs

400.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
400.00 PLN
492.00 PLN
price from 6 pcs
380.00 PLN
467.40 PLN
price from 11 pcs
360.00 PLN
442.80 PLN
Product available shipping tomorrow!

SM 18x225 [2xM5] / N42 - magnetic roller

catalog number 130274

no reviews

diameter Ø

18 mm [±0,1 mm]

height

225 mm [±0,1 mm]

498.15 PLN with VAT gross price / pcs

405.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
405.00 PLN
498.15 PLN
price from 6 pcs
384.75 PLN
473.24 PLN
price from 11 pcs
364.50 PLN
448.33 PLN
Product available shipping tomorrow!

SM 32x175 [2xM8] / N42 - magnetic roller

catalog number 130353

no reviews

diameter Ø

32 mm [±0,1 mm]

height

175 mm [±0,1 mm]

528.90 PLN with VAT gross price / pcs

430.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
430.00 PLN
528.90 PLN
price from 6 pcs
408.50 PLN
502.45 PLN
price from 11 pcs
387.00 PLN
476.01 PLN
Product available shipping tomorrow!

SM 32x150 [2xM8] / N52 - magnetic roller

catalog number 130358

no reviews

diameter Ø

32 mm [±0,1 mm]

height

150 mm [±0,1 mm]

528.90 PLN with VAT gross price / pcs

430.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
430.00 PLN
528.90 PLN
price from 6 pcs
408.50 PLN
502.45 PLN
price from 11 pcs
387.00 PLN
476.01 PLN
Product available shipping tomorrow!

SM 25x175 [2xM8] / N52 - magnetic roller

catalog number 130369

no reviews

diameter Ø

25 mm [±0,1 mm]

height

175 mm [±0,1 mm]

541.20 PLN with VAT gross price / pcs

440.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
440.00 PLN
541.20 PLN
price from 5 pcs
418.00 PLN
514.14 PLN
price from 10 pcs
396.00 PLN
487.08 PLN
Product available shipping tomorrow!

SM 25x200 [2xM8] / N42 - magnetic roller

catalog number 130291

no reviews

diameter Ø

25 mm [±0,1 mm]

height

200 mm [±0,1 mm]

541.20 PLN with VAT gross price / pcs

440.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
440.00 PLN
541.20 PLN
price from 5 pcs
418.00 PLN
514.14 PLN
price from 10 pcs
396.00 PLN
487.08 PLN
Product available shipping tomorrow!

SM 18x250 [2xM5] / N42 - magnetic roller

catalog number 130275

no reviews

diameter Ø

18 mm [±0,1 mm]

height

250 mm [±0,1 mm]

553.50 PLN with VAT gross price / pcs

450.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
450.00 PLN
553.50 PLN
price from 5 pcs
427.50 PLN
525.83 PLN
price from 10 pcs
405.00 PLN
498.15 PLN
Product available shipping tomorrow!

SM 32x175 [2xM8] / N52 - magnetic roller

catalog number 130359

5.0

diameter Ø

32 mm [±0,1 mm]

height

175 mm [±0,1 mm]

602.70 PLN with VAT gross price / pcs

490.00 PLN net price + 23% VAT / pcs

bulk discounts:


price from 1 pcs
490.00 PLN
602.70 PLN
price from 5 pcs
465.50 PLN
572.56 PLN
price from 9 pcs
441.00 PLN
542.43 PLN
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e-mail: bok@dhit.pl

tel: +48 888 99 98 98