Neodymium Disc Magnets 4mm dia. x 0.5mm thick (PK 50)

Pack of 50 Neodymium disc magnets 4mm diameter x 0.5mm thickness.

The grade is N42 and they are triple plated, nickel-copper-nickel.

The North and South poles are on the opposing flat circular faces.

Maximum pull 0.1kg.

Ideal for industrial use, magnetic therapy, scientific experiments etc.

These magnets are often laminated between plastic or card to make invisible

closure systems for folders.

These magnets are approximately 10 times stronger than traditional 'red' magnets.

TECHNICAL

Neodymium magnets have a maximum operating temperature of 90 degress C

above which their power deteriorates rapidly.

Although triple plated they can quickly degrade in steam atmospheres.

They can be fixed with good quality adhesives such as Araldite.

Safety when handling

Neodymium magnets

PLEASE OBSERVE THE FOLLOWING CONDITIONS WHEN HANDLING NEODYMIUM MAGNETS

►KEEP AWAY FROM MAGNETIC STRIPS ON CREDIT CARDS AND BANK CARDS

►Neodymium magnets can attract ferrous metals and other magnets over large distances risking physical injury

►Be particularly aware when placing two magnets together as the sudden attraction can easily trap fingers   

►Neodymium Magnets should never be given to children

►Neodymium magnets are hard and brittle and may shatter if allowed to ‘jump’ together or onto a metal surface

►It is recommended that eye and hand protection should be worn

►Strong magnets can interfere with sensitive electronic or mechanical equipment and should be kept at least 300mm from such devices

►Never travel on an aircraft without first declaring the magnets

►Magnets can destroy information held on magnetic media such as credit cards and computer drives

►Watches, computer monitors, televisions and mobile telephones can be seriously damaged by placing magnets near them

►Users of heart pacemakers should never handle strong magnets

►Never use magnets in potentially explosive atmospheres as sparks may be caused