![Magnetic bar SM 32x275 [2xM8] / N42](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Magnetic bar SM 32x275 [2xM8] / N42")
![SM 32x275 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x275-2xm8-hac.jpg)
SM 32x275 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130376
GTIN/EAN: 5906301813248
Diameter Ø
32 mm [±1 mm]
Height
275 mm [±1 mm]
Weight
1475 g
Magnetic Flux
~ 8 000 Gauss [±5%]
984.00 ZŁ with VAT / pcs + price for transport
800.00 ZŁ net + 23% VAT / pcs
670.00 ZŁ net was the lowest price in the last 30 days
bulk discounts:
Need more?
Give us a call
+48 888 99 98 98
or get in touch using
inquiry form
the contact section.
Specifications and structure of a neodymium magnet can be tested with our
modular calculator.
Orders submitted before 14:00 will be dispatched today!
Technical of the product - SM 32x275 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x275 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130376 |
| GTIN/EAN | 5906301813248 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 275 mm [±1 mm] |
| Weight | 1475 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 10 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 32x275 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 275 | mm (L) |
| Active length | 239 | mm |
| Section count | 10 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1681 | g |
| Active area | 240 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (10 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See more proposals
Pros as well as cons of neodymium magnets.
Strengths
- They retain attractive force for nearly ten years – the drop is just ~1% (according to analyses),
- Magnets effectively defend themselves against loss of magnetization caused by ambient magnetic noise,
- Thanks to the shimmering finish, the plating of nickel, gold-plated, or silver gives an modern appearance,
- Neodymium magnets generate maximum magnetic induction on a small surface, which increases force concentration,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- In view of the ability of accurate forming and adaptation to specialized solutions, NdFeB magnets can be produced in a wide range of shapes and sizes, which makes them more universal,
- Huge importance in electronics industry – they are utilized in computer drives, drive modules, medical equipment, and modern systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Weaknesses
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- We recommend a housing - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated shapes.
- Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small components of these magnets can be problematic in diagnostics medical when they are in the body.
- Due to complex production process, their price is relatively high,
Pull force analysis
Magnetic strength at its maximum – what it depends on?
- with the use of a sheet made of special test steel, guaranteeing full magnetic saturation
- whose thickness reaches at least 10 mm
- characterized by lack of roughness
- without the slightest clearance between the magnet and steel
- during pulling in a direction perpendicular to the plane
- in temp. approx. 20°C
Determinants of lifting force in real conditions
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Material type – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under shearing force the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet and the plate lowers the load capacity.
Safety rules for work with neodymium magnets
Safe operation
Be careful. Neodymium magnets attract from a long distance and snap with massive power, often quicker than you can react.
Risk of cracking
NdFeB magnets are sintered ceramics, which means they are very brittle. Impact of two magnets will cause them breaking into shards.
Threat to navigation
GPS units and mobile phones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Choking Hazard
Always keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are fatal.
Dust explosion hazard
Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Pacemakers
Patients with a heart stimulator must keep an absolute distance from magnets. The magnetism can disrupt the operation of the implant.
Hand protection
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Metal Allergy
A percentage of the population suffer from a contact allergy to nickel, which is the standard coating for NdFeB magnets. Prolonged contact may cause an allergic reaction. We suggest wear safety gloves.
Power loss in heat
Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
Safe distance
Very strong magnetic fields can destroy records on payment cards, hard drives, and storage devices. Stay away of at least 10 cm.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
Rate the product
Your rating