Demagnetizers

Demagnetizing devices reduce the residual magnetism to a value close to zero and are therefore used in the demagnetization of machine parts of all kinds, tools, cutting plates and bulk material. For that purpose, portable or stationary systems are used, and respectively dependent on the size and number of parts to be demagnetized. Both systems function according to the same principle: They slowly reduce the interfering fields acting on an object to zero from their maximum value. Simple hand-held demagnetizers have a coil with an electrical core, which is connected to the alternating current network. The coil is slowly moved over the objects.

List-Magnetik has decades of experience in the fields of magnetization and demagnetization, and as a result, we also design and manufacture individual stationary demagnetization systems. The demagnetization of steel parts is a complex topic, and in many cases, can only be solved by exactly adapted methods.

The picture shows a system for the demagnetization of vehicle parts with a conveyor belt for integration into a production line. The control cabinet operates in the capacitor discharge method SIE (Schwing-Impuls-Entmagnetisierungsverfahren / oscillation pulse demagnetization method) with a high-current thyristor circuit. In the coil tunnel the discharge takes place with a slow decaying field. The demagnetizing frequency is very low (10 - 20 Hz), and results in very high field strengths which penetrate through the solid part and completely eliminate residual magnetism.

Demagnetizers

Portable Demagnetizing Device HE-1

for demagnetizing of steel parts

Portable Demagnetizing Device HE-1

 

With the Portable Demagnetizing Device LIST-MAGNETIK HE-1, you can easily access even hard-to-reach places. For demagnetizing machine parts, tools, rotating parts, cutting plates, etc., simply pass the device over the magnetized objects and then slowly remove it.

It has a 230 V AC connection and produces an alternating magnetic field of 50 Hz with sufficient field strength for the demagnetization of alloyed steels.

Technical Data

Dimensions: Ø 130 x 60 x 300 mm
Weight: 3.5 kg
Field Strength: 420 A/cm
Power Supply: 230 V - 50 / 60 Hz
Power consumption: 46 W
Active Pole Surface: Ø 40 mm
Power: approx. 40 W

Portable Demagnetizing Device HE-2

for demagnetizing of steel parts

Portable Demagnetizing Device HE-2

 

The Portable Demagnetizing Device LIST-MAGNETIK HE-2 can be used either mobile or stationary, as required. The portable device demagnetizes machine parts, tools, rotary parts, cutting plates and much more. It has a 230 V AC connection and produces an alternating magnetic field of 50 Hz with sufficient field strength for the demagnetization of alloyed steels.

In addition to mobile use, you can also use the HE-2 as a desktop device. In doing so, carry the objects to be demagnetized over the device and then slowly remove them. The HE-2 is also suitable for installation under a conveyor belt, whereby the parts are moved over the device.

Technical Data

Dimensions: 192 x 150 x 272 mm
Weight: 7.9 kg
Field Strength: 750 A/cm outer, 520 A/cm center
Power Supply: 230 V - 50 / 60 Hz
Power consumption: 135 W
Active Pole Surface: 200 x 20 mm
Power: approx. 70 W