Neodymiums – wide shape selection

Want to buy really powerful magnets? We have in stock wide selection of various shapes and sizes. Best choice for domestic applications, garage and industrial tasks. Browse assortment with fast shipping.

see full offer

Magnets for seabed exploration

Discover your passion with treasure salvaging! Our double-handle grips (F200, F400) provide grip certainty and huge lifting capacity. Solid, corrosion-resistant housing and reinforced ropes will perform in challenging water conditions.

find your water magnet

Magnetic mounting systems

Reliable solutions for fixing non-invasive. Threaded mounts (external or internal) provide instant organization of work on warehouses. Perfect for mounting lighting, detectors and banners.

check industrial applications

📦 Fast shipping: buy by 14:00, package goes out today!

Dhit sp. z o.o.
Product available Ships in 3 days

SM 32x200 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130360

GTIN/EAN: 5906301813088

5.00

Diameter Ø

32 mm [±1 mm]

Height

200 mm [±1 mm]

Weight

1100 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
522.50 ZŁ
642.68 ZŁ
price from 10 pcs
495.00 ZŁ
608.85 ZŁ
Need help making a decision?

Contact us by phone +48 888 99 98 98 otherwise drop us a message via contact form the contact form page.
Strength as well as appearance of a magnet can be verified using our modular calculator.

Orders submitted before 14:00 will be dispatched today!

Technical details - SM 32x200 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x200 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130360
GTIN/EAN 5906301813088
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 32 mm [±1 mm]
Height 200 mm [±1 mm]
Weight 1100 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

Specification / characteristics SM 32x200 [2xM8] / N52 - magnetic separator
properties values units
remenance Br [min. - max.] ? 14.2-14.7 kGs
remenance Br [min. - max.] ? 1420-1470 mT
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

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

Table 1: Rod construction
SM 32x200 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 200 mm (L)
Active length 164 mm
Section count 7 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~1222 g
Active area 165 cm² (Area)
Housing material AISI 304 1.4301 (Inox)
Surface finish Ra < 0.8 µm Polished
Temp. class 80°C Standard (N)
Force loss (at max °C) -12.8% Reversible loss (physics)
Force (calculated) 41 kg (theor.)
Induction (surface) ~10 000 Gauss (Max)

Chart 2: Field profile (7 sections)

Chart 3: Temperature performance

Technical and environmental data
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%
Sustainability
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 130360-2026
Measurement Calculator
Force (pull)

Magnetic Induction

Other proposals

It is the "heart" of every magnetic filter used in industry for cleaning raw materials. Its task is separation (separation) of metal filings from the transported material. High magnetic induction on the surface allows catching the finest iron particles.
The construction relies on a sealed, welded stainless steel housing, polished smooth. The center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Thanks to this, the rod is durable, hygienic, and easy to keep clean.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. The economical version (8kGs) handles large pieces of metal perfectly. For the food and precision industry, we recommend the highest induction parameters.
We fulfill individual orders for bars perfectly matched to your machine or separator. You can choose a mounting method consistent with your technical design. We ensure fast realization of special orders and technical advice.

Pros as well as cons of neodymium magnets.

Advantages

Besides their immense field intensity, neodymium magnets offer the following advantages:
  • They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
  • They maintain their magnetic properties even under strong external field,
  • Thanks to the metallic finish, the surface of nickel, gold, or silver-plated gives an aesthetic appearance,
  • Magnets have impressive magnetic induction on the working surface,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to versatility in constructing and the capacity to adapt to unusual requirements,
  • Key role in future technologies – they find application in HDD drives, motor assemblies, medical devices, also industrial machines.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of making nuts in the magnet and complex shapes - preferred is casing - magnetic holder.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Breakaway strength of the magnet in ideal conditionswhat contributes to it?

Magnet power was defined for the most favorable conditions, taking into account:
  • using a plate made of mild steel, functioning as a ideal flux conductor
  • possessing a massiveness of min. 10 mm to ensure full flux closure
  • with an ideally smooth contact surface
  • under conditions of no distance (metal-to-metal)
  • during detachment in a direction vertical to the mounting surface
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

Effective lifting capacity impacted by working environment parameters, mainly (from priority):
  • Space between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Base massiveness – insufficiently thick plate does not close the flux, causing part of the flux to be lost into the air.
  • Steel type – low-carbon steel gives the best results. Higher carbon content decrease magnetic permeability and holding force.
  • Surface finish – full contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets
Demagnetization risk

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Dust explosion hazard

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Hand protection

Large magnets can crush fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Magnets are brittle

Beware of splinters. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.

Handling guide

Be careful. Rare earth magnets act from a long distance and snap with huge force, often faster than you can move away.

Danger to the youngest

Only for adults. Small elements can be swallowed, leading to severe trauma. Store away from children and animals.

GPS Danger

A strong magnetic field disrupts the operation of magnetometers in phones and navigation systems. Do not bring magnets near a smartphone to avoid damaging the sensors.

Sensitization to coating

Some people suffer from a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to skin redness. It is best to wear protective gloves.

ICD Warning

For implant holders: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Protect data

Device Safety: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Important! Want to know more? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98