SM 32x225 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130361
GTIN/EAN: 5906301813095
Diameter Ø
32 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
1205 g
Magnetic Flux
~ 10 000 Gauss [±5%]
676.50 ZŁ with VAT / pcs + price for transport
550.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical data of the product - SM 32x225 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x225 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130361 |
| GTIN/EAN | 5906301813095 |
| 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 | 1205 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 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 32x225 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1375 | g |
| Active area | 190 | 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 (8 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 proposals
Strengths and weaknesses of Nd2Fe14B magnets.
Advantages
- They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
- Neodymium magnets prove to be remarkably resistant to loss of magnetic properties caused by magnetic disturbances,
- The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
- Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to the potential of free forming and customization to specialized requirements, magnetic components can be modeled in a broad palette of forms and dimensions, which expands the range of possible applications,
- Wide application in modern industrial fields – they find application in mass storage devices, drive modules, advanced medical instruments, also industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which makes them useful in compact constructions
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of producing threads in the magnet and complex forms - preferred is cover - magnet mounting.
- Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. Furthermore, tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
- With large orders the cost of neodymium magnets is economically unviable,
Lifting parameters
Maximum lifting force for a neodymium magnet – what it depends on?
- using a sheet made of mild steel, acting as a circuit closing element
- whose transverse dimension reaches at least 10 mm
- with an polished contact surface
- without the slightest insulating layer between the magnet and steel
- during pulling in a direction perpendicular to the mounting surface
- in neutral thermal conditions
Lifting capacity in real conditions – factors
- Distance (betwixt the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
- Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of maximum force).
- Plate thickness – insufficiently thick sheet does not close the flux, causing part of the flux to be wasted to the other side.
- Plate material – mild steel gives the best results. Alloy admixtures decrease magnetic properties and lifting capacity.
- Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate reduces the holding force.
H&S for magnets
Handling rules
Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.
Risk of cracking
NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them shattering into shards.
Nickel coating and allergies
Certain individuals suffer from a contact allergy to Ni, which is the standard coating for NdFeB magnets. Frequent touching can result in a rash. We strongly advise wear protective gloves.
Bone fractures
Mind your fingers. Two large magnets will join immediately with a force of massive weight, crushing everything in their path. Exercise extreme caution!
Electronic devices
Avoid bringing magnets close to a purse, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.
Permanent damage
Watch the temperature. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
Medical implants
For implant holders: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.
Adults only
Absolutely keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are very dangerous.
GPS and phone interference
GPS units and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Fire risk
Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
