SM 32x175 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130359
GTIN/EAN: 5906301813071
Diameter Ø
32 mm [±1 mm]
Height
175 mm [±1 mm]
Weight
970 g
Magnetic Flux
~ 10 000 Gauss [±5%]
725.70 ZŁ with VAT / pcs + price for transport
590.00 ZŁ net + 23% VAT / pcs
490.00 ZŁ net was the lowest price in the last 30 days
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Technical details - SM 32x175 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x175 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130359 |
| GTIN/EAN | 5906301813071 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 175 mm [±1 mm] |
| Weight | 970 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 6 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 | 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
| 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 32x175 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 175 | mm (L) |
| Active length | 139 | mm |
| Section count | 6 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1070 | g |
| Active area | 140 | 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 (6 sections)
Chart 3: Temperature performance
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 |
Other offers
Advantages as well as disadvantages of Nd2Fe14B magnets.
Benefits
- They do not lose power, even over approximately ten years – the drop in strength is only ~1% (theoretically),
- They possess excellent resistance to magnetism drop when exposed to external fields,
- In other words, due to the aesthetic surface of silver, the element gains visual value,
- Neodymium magnets deliver maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of exact creating and optimizing to individual needs,
- Significant place in electronics industry – they serve a role in computer drives, motor assemblies, medical devices, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in compact constructions
Weaknesses
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- We recommend cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complex shapes.
- Possible danger related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small elements of these magnets can complicate diagnosis medical in case of swallowing.
- With budget limitations the cost of neodymium magnets can be a barrier,
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
- whose thickness is min. 10 mm
- characterized by even structure
- under conditions of gap-free contact (surface-to-surface)
- for force acting at a right angle (in the magnet axis)
- at room temperature
Lifting capacity in practice – influencing factors
- Distance – the presence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Chemical composition of the base – mild steel attracts best. Alloy admixtures lower magnetic properties and lifting capacity.
- Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
Precautions when working with neodymium magnets
Nickel coating and allergies
Studies show that nickel (the usual finish) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands and opt for coated magnets.
Safe operation
Exercise caution. Rare earth magnets act from a distance and snap with huge force, often quicker than you can react.
Physical harm
Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!
Risk of cracking
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Electronic devices
Equipment safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, hearing aids, timepieces).
Do not give to children
Strictly store magnets away from children. Risk of swallowing is high, and the effects of magnets clamping inside the body are tragic.
Magnetic interference
Be aware: neodymium magnets generate a field that interferes with sensitive sensors. Keep a safe distance from your mobile, tablet, and navigation systems.
Do not drill into magnets
Fire hazard: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.
Warning for heart patients
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Power loss in heat
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.
