MW 9.5x1 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010107
GTIN/EAN: 5906301811060
Diameter Ø
9.5 mm [±0,1 mm]
Height
1 mm [±0,1 mm]
Weight
0.53 g
Magnetization Direction
↑ axial
Load capacity
0.40 kg / 3.96 N
Magnetic Induction
127.68 mT / 1277 Gs
Coating
[NiCuNi] Nickel
0.295 ZŁ with VAT / pcs + price for transport
0.240 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Pick up the phone and ask
+48 22 499 98 98
otherwise let us know through
inquiry form
the contact page.
Strength and structure of a magnet can be analyzed with our
magnetic mass calculator.
Order by 14:00 and we’ll ship today!
Technical specification of the product - MW 9.5x1 / N38 - cylindrical magnet
Specification / characteristics - MW 9.5x1 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010107 |
| GTIN/EAN | 5906301811060 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 9.5 mm [±0,1 mm] |
| Height | 1 mm [±0,1 mm] |
| Weight | 0.53 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.40 kg / 3.96 N |
| Magnetic Induction ~ ? | 127.68 mT / 1277 Gs |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±0.1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.2-12.6 | kGs |
| remenance Br [min. - max.] ? | 1220-1260 | mT |
| coercivity bHc ? | 10.8-11.5 | kOe |
| coercivity bHc ? | 860-915 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 36-38 | BH max MGOe |
| energy density [min. - max.] ? | 287-303 | 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 |
Engineering simulation of the product - data
Presented values constitute the result of a engineering simulation. Results rely on algorithms for the material Nd2Fe14B. Real-world performance may differ. Please consider these data as a supplementary guide for designers.
Table 1: Static force (pull vs gap) - characteristics
MW 9.5x1 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1276 Gs
127.6 mT
|
0.40 kg / 0.88 lbs
400.0 g / 3.9 N
|
weak grip |
| 1 mm |
1129 Gs
112.9 mT
|
0.31 kg / 0.69 lbs
312.8 g / 3.1 N
|
weak grip |
| 2 mm |
905 Gs
90.5 mT
|
0.20 kg / 0.44 lbs
201.0 g / 2.0 N
|
weak grip |
| 3 mm |
683 Gs
68.3 mT
|
0.11 kg / 0.25 lbs
114.5 g / 1.1 N
|
weak grip |
| 5 mm |
366 Gs
36.6 mT
|
0.03 kg / 0.07 lbs
32.9 g / 0.3 N
|
weak grip |
| 10 mm |
92 Gs
9.2 mT
|
0.00 kg / 0.00 lbs
2.1 g / 0.0 N
|
weak grip |
| 15 mm |
33 Gs
3.3 mT
|
0.00 kg / 0.00 lbs
0.3 g / 0.0 N
|
weak grip |
| 20 mm |
15 Gs
1.5 mT
|
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
|
weak grip |
| 30 mm |
5 Gs
0.5 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
1 Gs
0.1 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
Table 2: Vertical capacity (vertical surface)
MW 9.5x1 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.08 kg / 0.18 lbs
80.0 g / 0.8 N
|
| 1 mm | Stal (~0.2) |
0.06 kg / 0.14 lbs
62.0 g / 0.6 N
|
| 2 mm | Stal (~0.2) |
0.04 kg / 0.09 lbs
40.0 g / 0.4 N
|
| 3 mm | Stal (~0.2) |
0.02 kg / 0.05 lbs
22.0 g / 0.2 N
|
| 5 mm | Stal (~0.2) |
0.01 kg / 0.01 lbs
6.0 g / 0.1 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 20 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 30 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 50 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
Table 3: Vertical assembly (sliding) - vertical pull
MW 9.5x1 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.12 kg / 0.26 lbs
120.0 g / 1.2 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.08 kg / 0.18 lbs
80.0 g / 0.8 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.04 kg / 0.09 lbs
40.0 g / 0.4 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.20 kg / 0.44 lbs
200.0 g / 2.0 N
|
Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 9.5x1 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.04 kg / 0.09 lbs
40.0 g / 0.4 N
|
| 1 mm |
|
0.10 kg / 0.22 lbs
100.0 g / 1.0 N
|
| 2 mm |
|
0.20 kg / 0.44 lbs
200.0 g / 2.0 N
|
| 3 mm |
|
0.30 kg / 0.66 lbs
300.0 g / 2.9 N
|
| 5 mm |
|
0.40 kg / 0.88 lbs
400.0 g / 3.9 N
|
| 10 mm |
|
0.40 kg / 0.88 lbs
400.0 g / 3.9 N
|
| 11 mm |
|
0.40 kg / 0.88 lbs
400.0 g / 3.9 N
|
| 12 mm |
|
0.40 kg / 0.88 lbs
400.0 g / 3.9 N
|
Table 5: Thermal stability (material behavior) - thermal limit
MW 9.5x1 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.40 kg / 0.88 lbs
400.0 g / 3.9 N
|
OK |
| 40 °C | -2.2% |
0.39 kg / 0.86 lbs
391.2 g / 3.8 N
|
OK |
| 60 °C | -4.4% |
0.38 kg / 0.84 lbs
382.4 g / 3.8 N
|
|
| 80 °C | -6.6% |
0.37 kg / 0.82 lbs
373.6 g / 3.7 N
|
|
| 100 °C | -28.8% |
0.28 kg / 0.63 lbs
284.8 g / 2.8 N
|
Table 6: Two magnets (repulsion) - forces in the system
MW 9.5x1 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
0.71 kg / 1.57 lbs
2 403 Gs
|
0.11 kg / 0.24 lbs
107 g / 1.0 N
|
N/A |
| 1 mm |
0.65 kg / 1.43 lbs
2 436 Gs
|
0.10 kg / 0.21 lbs
97 g / 1.0 N
|
0.58 kg / 1.29 lbs
~0 Gs
|
| 2 mm |
0.56 kg / 1.23 lbs
2 257 Gs
|
0.08 kg / 0.18 lbs
84 g / 0.8 N
|
0.50 kg / 1.10 lbs
~0 Gs
|
| 3 mm |
0.46 kg / 1.00 lbs
2 041 Gs
|
0.07 kg / 0.15 lbs
68 g / 0.7 N
|
0.41 kg / 0.90 lbs
~0 Gs
|
| 5 mm |
0.27 kg / 0.60 lbs
1 580 Gs
|
0.04 kg / 0.09 lbs
41 g / 0.4 N
|
0.25 kg / 0.54 lbs
~0 Gs
|
| 10 mm |
0.06 kg / 0.13 lbs
732 Gs
|
0.01 kg / 0.02 lbs
9 g / 0.1 N
|
0.05 kg / 0.12 lbs
~0 Gs
|
| 20 mm |
0.00 kg / 0.01 lbs
183 Gs
|
0.00 kg / 0.00 lbs
1 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 lbs
16 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 60 mm |
0.00 kg / 0.00 lbs
10 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 70 mm |
0.00 kg / 0.00 lbs
6 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 80 mm |
0.00 kg / 0.00 lbs
4 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 90 mm |
0.00 kg / 0.00 lbs
3 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 100 mm |
0.00 kg / 0.00 lbs
2 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
Table 7: Hazards (implants) - precautionary measures
MW 9.5x1 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 3.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 2.5 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 2.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 1.5 cm |
| Car key | 50 Gs (5.0 mT) | 1.5 cm |
| Payment card | 400 Gs (40.0 mT) | 0.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 0.5 cm |
Table 8: Dynamics (kinetic energy) - warning
MW 9.5x1 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
27.80 km/h
(7.72 m/s)
|
0.02 J | |
| 30 mm |
47.99 km/h
(13.33 m/s)
|
0.05 J | |
| 50 mm |
61.95 km/h
(17.21 m/s)
|
0.08 J | |
| 100 mm |
87.61 km/h
(24.34 m/s)
|
0.16 J |
Table 9: Corrosion resistance
MW 9.5x1 / N38
| Technical parameter | Value / Description |
|---|---|
| Coating type | [NiCuNi] Nickel |
| Layer structure | Nickel - Copper - Nickel |
| Layer thickness | 10-20 µm |
| Salt spray test (SST) ? | 24 h |
| Recommended environment | Indoors only (dry) |
Table 10: Construction data (Pc)
MW 9.5x1 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 184 Mx | 11.8 µWb |
| Pc Coefficient | 0.16 | Low (Flat) |
Table 11: Physics of underwater searching
MW 9.5x1 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.40 kg | Standard |
| Water (riverbed) |
0.46 kg
(+0.06 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Note: On a vertical wall, the magnet holds only approx. 20-30% of its nominal pull.
2. Plate thickness effect
*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.
3. Temperature resistance
*For standard magnets, the max working temp is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.16
The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.
Elemental analysis
| 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
Advantages and disadvantages of rare earth magnets.
Benefits
- They retain full power for almost ten years – the drop is just ~1% (in theory),
- Neodymium magnets are exceptionally resistant to loss of magnetic properties caused by external field sources,
- A magnet with a metallic silver surface looks better,
- Neodymium magnets achieve maximum magnetic induction on a contact point, which allows for strong attraction,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the ability to adapt to complex applications,
- Huge importance in innovative solutions – they are used in mass storage devices, electric motors, medical equipment, and industrial machines.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited possibility of making threads in the magnet and complex shapes - preferred is a housing - magnet mounting.
- Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets are able to complicate diagnosis 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
Best holding force of the magnet in ideal parameters – what it depends on?
- with the application of a yoke made of low-carbon steel, guaranteeing maximum field concentration
- whose transverse dimension is min. 10 mm
- with a plane free of scratches
- without the slightest clearance between the magnet and steel
- during pulling in a direction perpendicular to the mounting surface
- at standard ambient temperature
Practical aspects of lifting capacity – factors
- Distance – the presence of any layer (rust, dirt, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Plate thickness – too thin sheet causes magnetic saturation, causing part of the power to be wasted to the other side.
- Material composition – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
- Temperature influence – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Warnings
GPS and phone interference
GPS units and mobile phones are extremely susceptible to magnetism. Direct contact with a strong magnet can decalibrate the internal compass in your phone.
Maximum temperature
Avoid heat. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).
Choking Hazard
These products are not intended for children. Accidental ingestion of several magnets can lead to them pinching intestinal walls, which constitutes a direct threat to life and requires immediate surgery.
Nickel allergy
It is widely known that nickel (standard magnet coating) is a strong allergen. If your skin reacts to metals, refrain from direct skin contact and select encased magnets.
Do not underestimate power
Use magnets with awareness. Their huge power can shock even experienced users. Be vigilant and do not underestimate their power.
Electronic devices
Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Health Danger
Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Shattering risk
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.
Fire risk
Powder produced during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.
Pinching danger
Pinching hazard: The pulling power is so immense that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.
