Controlled demagnetizer

The industrial demagnetizers consist of demagnetizing tunnel coils and power modules. The digitally controlled power module guides precisely the demagnetization process. This approach enables efficient solutions for different applications. The controlled demagnetizer machines are most often set for the pulse method. In the case of continuous or endless material flow, they can also be configured for a continuous demagnetization process. In some special cases best results are obtained by using both methods in combination (pulse demagnetization with continuous passage of the parts -> continuous pulse method).

The power modules and the demagnetizing coils are available in various sizes (see tables below). In cases where standard sizes can’t be used, customer specific variants can be designed.

Some typical fields of application of these industrial demagnetization machines: removing magnetism of:

  • parts in transport or washing baskets prior to cleaning machines
  • parts before eddy current testing
  • produced parts to meet residual magnetism limits
  • tools, clamping or gripping elements
  • semi finished steel products

The controlled demagnetizers are not only suitable for specific applications. They are also interesting in cases where an economical and universally applicable solution is required for shop floor and industrial production.

Controlled demagnetizer
Controlled demagnetizer LM14 + SSM03
Demagnetizer with two coils
Demagnetizer with two coils LM68 + 2x SSM11

Demagnetizing coils:

The windings of the demagnetizing coils are calculated and designed for maximum field strength and lifetime. The coils are completely encapsulated, electrically insulated and protected against overheating by temperature monitoring. The electrical connection to the power module is done by cables of customer specific length.

Specifications:

Demag. coilActive area (1) WxH xD [mm]Dimension WxH xD [mm]Power module (2)
SSM03150×100 x130408×282 x170LM14…LM20
SSM04 250×250 x160 510×405 x200 LM14…LM47
SSM05 250×350 x210 510×505 x250 LM20…LM68
SSM06 260×130 x145 520×315 x185 LM14…LM47
SSM07 350×300 x210 610×455 x250 LM20…LM68
SSM08 350×450 x210 610×605 x250 LM25…LM68
SSM09 400×200 x210 660×355 x250 LM25…LM68
SSM10 400×400 x210 660×555 x250 LM25…LM68
SSM11 420×300 x210 680×455 x250 LM25…LM68
SSM12 550×550 x210 810×705 x250 LM38…LM68
SSM13 560×350 x210 820×505 x250 LM38…LM68
SSM14 710×550 x210 970×705 x250 LM38…LM68
Other on request

(1) The active area defines the volume of the coil enveloped by the winding. The dimension WxH corresponds to the passage of the coil.

(2) Standard power modules for a coil. Other combinations on request.

The performance data (field strength, frequency, demagnetization method etc.) is determined optimally in a project specific manner.


Power modules:

The power module contains the power electronics for generating the controlled alternating current required in the demagnetizing coil. We trust for a long term worldwide availability of spare parts exclusively on hardware from leading electronics companies. Cestriom holds the core know-how in its own hands by designing the power modules, programming the PLC’s and setting the power electronics on its own.

Further development goals of our power modules are simple maintenance and high availability. All relevant settings and parameters are stored completely digitally. This concept not only allows know-how protection, but also permits easy restoring of the specific machine settings only by downloading software and parameters. The digital design with most recent electronics furthermore enables modern remote maintenance concepts by internet.

The power modules are designed by standard for manual and remote operation. Communication is done via 24V isolated signals in automated (remote) operation mode (further communication variants on request). The demagnetization process parameters are controlled by a PLC. If needed the parameters can easily be changed on a display (optional) within a wide range.

Specifications:

Power moduleElectrical connectionDimension WxH xD [mm]
LM14…LM20200…240VAC 50/60Hz, 16A400×500 x210
LM25…LM683×380…480VAC 50/60Hz, 16…32A600×600 x350
Other on request
  • Options on request

Examples:

LM14 and coil SSM03 for manual demagnetization of bulk material parts.
LM14 and coil SSM03 for manual demagnetization of bulk material parts.
LM68 with two SSM12 coils in Helmholtz arrangement for demagnetization of parts in washing baskets in front of a cleaning system. Implementation of automation by third party company.
LM68 with two SSM12 coils in Helmholtz arrangement for demagnetization of parts in washing baskets in front of a cleaning system. Implementation of automation by third party company.
LM68 with coil SSM12 for demagnetization of steel parts of different dimensions. Customer realization of the housing.
LM68 with coil SSM12 for demagnetization of steel parts of different dimensions. Customer realization of the housing.