A lifting magnet works to lift objects attracted to magnets, such as iron, nickel, cobalt, and steel. In magnet fishing, enthusiasts attach powerful magnets to rope and trawl the waters of river bodies in a hobby that straddles environmentalism and treasure hunting. As these magnets are powerful enough to lift over hundreds of pounds of weight, they bring up large amounts of metal debris, including anything from old machinery to tossed bicycle frames. To make a fishing trip successful, here are some tips for selecting a good lifting magnet.
Material maketh the magnet
Fishing magnets have to be heavy-duty. They need to be both sufficiently powerful to lift heavy objects and durable enough to withstand a bit of knocking about underwater. Saltwater can be quite corrosive, so they also require protection against that if applicable. Modern magnets are made of a neodymium-boron-iron alloy, plated with nickel, copper, and then nickel again for protection against corrosion. These are permanent magnets and won't lose their magnetism over time.
A magnet for lifting things
Fishing magnets are designed to be easy to use with rope and typically come with an eyebolt attached to a steel case. These should ideally be made of stainless steel for maximum corrosion resistance and durability. The case prevents the magnet from chipping or cracking. The eyebolt can be placed on the rounded edge of the cylinder or on the flat edge. Either way, look for double-sided magnets as they have twice the available surface area for catching debris.
Neodymium magnets are known to pack a powerful punch. Fishing magnets are small but mighty: a 2.95" ×0.95" double-sided magnet can lift as much as 600lbs on both sides (for a total of 1,200lbs). Selecting an appropriately powerful magnet is also important--it would hardly be ideal for a hobbyist to catch something that couldn't be pulled back up!
Categories Simillar to Lift Magnets includes Electric Winches, Chain Links and Swivels