Alnico Horseshoe Magnet for Pole Interaction and Attraction Experiments

Description

The Alnico Horseshoe Magnets, also known as U-shaped Alnico magnets, permanent horseshoe magnets or laboratory teaching magnets, are designed for investigating magnetic fields, magnetic forces and the fundamental principles of magnetism in educational physics laboratories. Manufactured from Alnico, a permanent magnetic alloy based on aluminium, nickel and cobalt, these horseshoe magnets produce a magnetic field without requiring an external electrical power source. Their construction makes them suitable for practical demonstrations involving magnetic attraction, repulsion and interactions with magnetic materials.

The range includes five available sizes: 25 mm, 50 mm, 75 mm, 100 mm and 150 mm, allowing educators and laboratory personnel to select an appropriate magnet according to their experimental requirements. The U-shaped horseshoe design positions the north and south magnetic poles at the two ends of the magnet. This arrangement brings the poles relatively close together, producing a concentrated magnetic field in the gap between them. The 25 mm Alnico Horseshoe Magnet features a red finish with clearly marked N and S magnetic poles. It has an approximate lifting capacity of 300 g, making it suitable for small-scale demonstrations of magnetic attraction. Actual lifting performance depends on the contacted material, surface condition and test arrangement. The 50 mm Alnico Horseshoe Magnet measures 50 mm in overall height, with an approximate width of 40 mm across the bottom. Its larger construction provides an alternative for classroom demonstrations and magnetic field investigations.

The 75 mm Alnico Horseshoe Magnet is designed for use with iron filings and general science experiments. Its dimensions of 75 × 12 × 5 mm make it suitable for demonstrating magnetic field patterns and interactions with ferromagnetic materials. The larger 100 mm and 150 mm horseshoe magnets provide additional size options for educational physics activities. Their dimensions allow laboratories to select a suitable magnet for different experimental arrangements.

During magnetic field mapping experiments, students can position iron filings or plotting compasses around the horseshoe magnet to observe the magnetic field. The patterns help demonstrate how magnetic field lines extend between the north and south poles. These magnets are also useful for investigating magnetic attraction and repulsion, allowing students to observe interactions between permanent magnets and suitable ferromagnetic materials such as iron and steel. The permanent magnetic construction makes the magnets suitable for repeated practical demonstrations in secondary school physics classrooms, university teaching laboratories and educational science facilities.

Although Alnico magnets provide useful magnetic stability under appropriate conditions, they can lose magnetisation when exposed to strong opposing magnetic fields or improper storage arrangements. The specific magnetic strength and operating temperature limits have not been provided for these variations. Safety Precautions: Handle the magnets carefully to avoid impact damage and unintended attraction to metal objects. Keep them away from magnetically sensitive equipment and implanted medical devices. Avoid excessive heat, mechanical shock and conditions that may cause demagnetisation. These products are intended for laboratory and educational settings only and should be used under appropriate supervision. Each selected variation is supplied as the Alnico Horseshoe Magnet in the chosen 25 mm, 50 mm, 75 mm, 100 mm or 150 mm size. Iron filings, compasses and other physics demonstration accessories are not included unless specified separately.

LabChoice Australia supplies Alnico horseshoe magnets, permanent magnets and educational physics apparatus for secondary schools, universities, research institutions and science teaching laboratories across Australia.