Handling of beams and sections

GAUSS MAGNETI designs and manufactures special deep field electromagnets, with two or more magnetic poles, for handling of 6 to 24 meters long ferrous single or packed beams and sections. Magnetic shoes shape and dimensions are designed in order to enter also thin beams wings. In the design the magnet and beam weights are carefully calculated in order to use at best the lifting device capacity.

They are mainly used for the following applications:

• Unloading of beams and sections from production line (also hot materials)
• Loading and unloading of lorries, rail containers, ships.
• Stocking in stores or warehouses

The use of magnets makes the handling of these long materials more rational, with low requirement of personnel and greater safety, as the operators no longer have to approach the load neither to climb on it. No spacer between the single product is any longer needed with consequent better exploitation of the available stock space.

The magnets are arranged under a fixed or an extensible beam allowing the magnets distance to be adjusted according to the bundles dimensions. As handling with a single hook would be particularly difficult requiring also the presence of a second operator on ground, it is advisable to handle these loads with a 2 hooks crane, granting the load to lay horizontally and hampering also possible oscillations.

Deep field electromagnets are fed:

• by the electric net through our electronic equipment with 4-quadrants digital converter allowing magnetic flux setting, counter-excitation for fast load release, coil temperature control by means of thresholds (important in high-temperature magnets), automatic switching to batteries , buffer batteries (Pb or Ni-Cd), automatic batteries loading system and continuous control of the batteries charge condition.

Gauss Magneti has also successfully developed the electropermanent magnets technology. Electropermanent magnets hold their magnetization also in case of net failure or cable break, so they do not need buffer batteries or mechanical safety forks.
Their peculiarity lies in that they are activated by a current pulse lasting few seconds and that they hold their magnetization till a second current pulse – opposite the first one – deactivate them.
Beside the obvious advantage of handling safety, they also assure the highest reliability being actually exempt from internal Joule heating.
Coming on the market of high performance magnetic materials has also allowed in electropermanent magnets a weight and dimensions reduction preserving the same capacity.
Also for electropermanent magnets Gauss Magneti offers special versions able to handle high temperature materials (up to 600°C).
The electropermanent magnets can be used only for single beam or section.