50/60Hz continuous tunnel coils
50/60Hz continuous tunnel coils
Demagnetization in a continuous process: Efficient solution for industrial production
In industrial production, there are often applications where demagnetization in a continuous process is required to ensure the continuous flow of parts. This process is based on the parts being guided through a constant alternating field within a demagnetization coil. Demagnetization takes place by gradually increasing the distance from the field source.
Manual and automated processes
Demagnetization in the continuous process can either be carried out manually by hand or - as is common today - with the help of automation systems.
Limits and alternatives in demagnetization
Continuous coils (DS), which are operated at a mains frequency of 50/60 Hz, reach their limits in certain applications:
- Material properties: limited effect on steel with large wall thickness or high coercive field strength (e.g. hard steel).
- Multi-part demagnetization: Limitations when demagnetizing parts in product carriers or bulk goods.
In such cases, controlled demagnetizers are a powerful alternative. They offer more precise and effective demagnetization, especially for demanding materials and applications.
Continuous tunnel coil DS03
Examples of use Demagnetization tunnel in throughfeed. Demagnetization of:
- Small parts with thin walls
- Sheet metal parts with a wall thickness of up to a few millimeters
- Rods or tubes with thin walls
- Endless strands of parts on conveyor belts
Technical data:
| DS | Connection (1) | Effective range WxH xD [mm] (2) | Field strength [kA/m] (3) |
| DS03 | 230/277V 50/60Hz | 150×100 x130 | 26 |
| DS04 | 230/277V 50/60Hz | 250×250 x160 | 22 |
| DS05 | 230/277V 50/60Hz | 250×350 x210 | 18 |
| DS06 | 230/277V 50/60Hz | 260×130 x145 | 30 |
| DS07 | 230/277V 50/60Hz | 350×300 x210 | 18 |
| DS08 | 230/277V 50/60Hz | 350×450 x210 | 17 |
| DS09 | 230/277V 50/60Hz | 400×200 x210 | 26 |
| DS10 | 400/480V 50/60Hz | 400×400 x210 | 18 |
(1) With a reduced duty cycle of approx. 30%, it is possible to connect a 230/277VAC coil to 400/480VAC to increase the field strength.
(2) The dimension WxH corresponds to the opening of the coil.
(3) Maximum field strength (peak value) at 100% duty cycle.