- Magnetic Grade Selection
We need to know highest working temperature to help us to select the magnetic grade. If the highest working temperature is more than 80℃, N series is not proper. You need to choose M , H , SH, UH series.
Proper magnetic grade to choose proper size of the magnet. If you want to add 10% attraction force, the cost of adding 1mm is half of adding one magnetic grade.
- Size Selection
The magnetic force is not depends on the magnetic grade, the different D/L could have different attraction force.
| D/L | Feature | Application |
|---|---|---|
| D/T ≈ 1(Φ10×10) | Biggest the attraction force ,focusing on the radial magnatization | The scenario which need the biggest attraction force |
| D/T ≈ 2-4(Φ20×5) | The best balnace between the attraction force and cost | Most pupular parameter,apply in 80% scenario |
| D/T ≈ 5-10(Φ30×3) | Middle attraction force, big contact area | The scenario which need large contact area |
| D/T > 10(Φ50×2) | Lamellar form,low attraction force | Clostly contact,locate,Space limited scenario |
Size Range
| Parameter | Min. Parameter | Max. Parameter | Accuracy |
|---|---|---|---|
| Diameter | Φ1mm | Φ200mm | ±0.05mm |
| Thickness | 0.5mm | 50mm | ±0.05mm |
| Countersunk Hole | Φ0.8mm | Φ150mm | ±0.03mm |
Regular Parameter
| Parameter | Magnetic Grade | Vertical Force | Application |
|---|---|---|---|
| Φ5×2mm | N35 | ~0.3 kg | Phone motor,micro sensor |
| Φ10×3mm | N38 | ~1.0 kg | Packaging magnetic buckle,Electronic location |
| Φ15×5mm | N38 | ~2.0 kg | Door attraction force,Tool attraction force |
| Φ20×5mm | N42 | ~4.0 kg | Magnetic fixture,Industrial attraction force |
| Φ25×5mm | N42 | ~5.5 kg | Cargo-lifting electromagnet,automation equipment |
| Φ30×10mm | N42 | ~10 kg | Magnetic lifting gear |
| Φ50×10mm | N45 | ~25 kg | Industrial sorting |
| D100×20mm | N42 | ~80 kg | Heavy industry,Lifting magnet |
