An oil pipeline from Rotterdam to Venlo in the Netherlands, which then splits to continue to two locations in Germany, required partial replacement; this was the result of an inspection at the Venlo distribution station. After crawling through the old pipeline, workers discovered unwanted residual magnetism. This made welding impossible. Due to time constraints, the situation was alarming.

goudsmit mobile demagnetization unit avoids downtime

Because the buffer capacity was too small to accommodate longer downtime, oil had to flow through the pipeline the next day. Otherwise, many industrial operations in Germany would have been unable to use oil, leading to claims for significant losses against the contractor, so time was critical. Fortunately, our flexible demagnetization expert Ger was able to reschedule his other work and was quickly on site. He brought a mobile demagnetizer and wrapped cables around the pipeline, then created a counter-magnetic field to cancel out the magnetism present in the pipeline. After about three hours, the process was complete, and welding could proceed again.

goudsmit mobile demagnetization unit

Unwanted magnetic forces waste time and money. They attract dust or sticky materials, reduce the quality of end products, and cause production stoppages. Demagnetization systems can eliminate residual magnetism or reduce it to harmless levels. They can reduce bearing wear, make welding feasible again, and prevent measurement errors. We offer demagnetization systems and can also provide on-site demagnetization for your products.

The control trolley is equipped with an interface featuring pre-programmed basic functions, allowing you to eliminate magnetism in most common products without extensive demagnetization knowledge.

By answering a series of questions on the display, the demagnetization system is automatically configured for use. The reel provides a quick way to wind up the cable, and the trolley is easy to move. This provides a compact, flexible demagnetization system that is ready for immediate use.

Our own experts also use this toolset, and they will come to you if you use our on-site demagnetization service.

The mobile demagnetization unit is for your own use, without intervention from a Goudsmit expert. The demagnetizer consists of a control box on wheels and demagnetization cables on a trolley. A coil is formed by wrapping the cable around the product. The control unit generates a strong alternating magnetic field for dissipation. It is easy to move, suitable for thick-walled or packaged products, and applicable to almost every product size.

Using the goudsmit mobile demagnetization unit

The goudsmit demagnetizer uses an electromagnet with an open iron core, supplied with 50 Hz AC current. During demagnetization, the object to be demagnetized is first brought close to the demagnetizer to saturate the magnetism, and then gradually moved away, causing the hysteresis loop to shrink until the residual magnetism is eliminated. Alternatively, a damped oscillating current can be passed through the electromagnet's coil to serve as a demagnetizer. When using this type of demagnetizer, the object does not need to be gradually moved away.