As one of the largest global suppliers of magnets, we ship between 50 and 100 million magnets per annum to a diverse range of clients such as automotive, medical and oil and gas. We can carry out the manufacture, coating, magnetisation, inspection and shipping of your products to ISO 9001, AS9100 and TS16949 quality standards.
MATERIALS
A full range of permanent magnetic materials are available, both as standard catalogue items and as tailored designs based on your specifications:
Neodymium Iron Boron (NdFeB)
Samarium Cobalt (SmCo)
Aluminium Nickel Cobalt (AlNiCo)
Ferrite
| Br (T) | Hci(kA/m) | BHmax (kJ/m3) | TC (°C) | |
|---|---|---|---|---|
| Nd2Fe14B (sintered) | 1.0–1.4 | 850–2400 | 200–400 | 80-200 |
| SmCo5 (sintered) | 0.8-1.1 | 1200-2000 | 120-240 | 300-400 |
| Alnico (sintered) | 0.6-1.4 | 40-150 | 10-60 | 450-550 |
| Sr-ferrite (sintered) | 0.2-0.4 | 150-350 | 10-40 | 200-250 |
DESIGN & FEA ANALYSIS
At Goudsmit UK, we offer you a wide range of design support. You can benefit from our experience in:
2D and 3D magnetic design
Mechanical design
FEA and mechanical analysis
Thermal analysis
If you’d like to discuss the details of your design then get in touch with us today.
MAGNETIC ASSEMBLY
As specialists in manufacturing and assembling magnets, we have developed expertise and know-how in the following areas:
Mechanical assembly
Insert and over moulding
Gluing and heat staking
Ultrasonic welding and brazing
APPLICATIONS
If you’d like to see some real world examples of the assembly techniques we use, then please feel free to review the case studies below:
In this application the client used two mouldings to house a magnetic assembly. Normally assembled by gluing, the parts often separated due to thermal cycling. Goudsmit UK redesigned the assembly and substituted gluing with ultrasonic welding. The result is a better cosmetic finish and a more stable and durable assembly.
The magnet needs to be held on the plate by more than attractive forces. We could have used a mechanical fixing or a heat stake, but the application is non-critical and the client had historically used glue.
These magpads are commonly used to hold objects to vehicles. Initial versions featured a rubber boot but later designs moved to a more robust elastomer over moulding.
Using an engineering polymer and heat stable pigments, a thin magnet is encapsulated between the layers. The assembly sees 160°c in operation.
Tasked to combine a magnet and a shaft but not have the magnet come into contact with drinking water, we chose to avoid glue and encapsulate the magnet and shaft, while mechanically coupling them using insert moulding. Cheap, very repeatable and very successful the assembly worked in the application with no issues at all.