Fishing Magnet

Fishing Magnet
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Fishing Magnet

Magnetic Hook Pull Force by Cup Size

Vertical pull on 5 mm ground steel. Side slide is roughly one third of these figures.

Cup diameter Vertical pull Side slide Hook opening Typical load
D25 12 kg 4 kg 10 mm Keys, small bags, cables
D32 22 kg 7 kg 12 mm Towels, jackets, tools
D36 29 kg 10 kg 14 mm Most cruise and home use
D42 40 kg 13 kg 16 mm Heavy bags, hoses
D48 55 kg 18 kg 20 mm Workshop tools, tarps

These are holding figures, not lifting ratings. Never use a magnetic hook above a person or as a fall-arrest point.

Where Heavy Duty Magnetic Hooks Are Used

Four settings account for most of the volume we ship.

Cabin icon for magnetic hooks on cruise ship steel walls

Cruise Cabins

Cabin walls are steel and drilling is forbidden, which is why magnetic hooks for cruise cabins outsell every other fixing. A D36 hook carries a wet jacket without a mark.

Gear icon for magnetic hooks in workshops and tool racks

Workshops

Industrial magnetic hooks hang spanners, hoses and jigs on a steel rack and move when the bay is reorganized.

Drawing icon for magnetic hooks on painted vehicle panels

Painted Vehicles

Swap the bare cup for a rubber coated magnet body so the paint stays intact.

Handshake icon for magnetic hooks in warehouse storage racks

Warehouse Racks

Mark bays and hang signage on steel shelving without adhesive that fails in the cold.

Mounting Tips That Keep the Rating

Three things that quietly halve the load

  • Thin sheet. Below about 1.5 mm the steel saturates and the magnet cannot develop full flux. Add a backing plate or step up a size.
  • Side load. Hanging on a wall turns a vertical pull into a shear load. Derate to one third and add a lip if the hook must stay put.
  • Heat. A standard N grade loses holding force above 80 °C. Near ovens or engines, switch to an H or SH class cup.

Check the actual figure before you specify: the magnetic pull force calculator accounts for plate thickness and gap.

Magnetic Hook FAQ

Will a magnetic hook hold on a stainless steel fridge?
Usually yes, because appliance panels are ferritic. Test with a kitchen magnet first: if a small magnet sticks hard, a hook will hold.
How much can a magnetic hook hold on a cruise cabin wall?
Treat a D36 hook as good for 8–12 kg there. The wall is thin painted steel, so the bare-steel rating does not apply.
Can the hook be removed and reused?
Yes. Slide it sideways rather than pulling straight off, which is easier on the coating and on your fingers.
Do you make hooks with a custom thread?
We do. Send the thread callout and we match it to a standard cup where one exists, or machine a stud to suit.

Tell us the load, we will size the hook

Share surface, load weight and whether it hangs vertically. We reply with cup size and hook style.

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How to Fish a Magnet in Four Steps

Most lost magnets are lost on the first throw, not on a big find.

01

Lock the Eye

Thread the eyebolt with medium thread lock and let it cure. Vibration works a dry bolt loose in one session.

02

Tie and Test

Use a rope rated well above the magnet. Test the knot with a hard pull before the first cast.

03

Drag Slowly

Let it settle, then walk a slow line. Dragging fast skips over finds and buries the magnet in silt.

04

Peel, Don't Pull

Slide debris off the edge of the face. Pulling straight away from the magnet is how fingers get pinched.

Neodymium Fishing Magnets vs Ferrite

Ferrite is cheaper and weaker. It is still the right answer in one case.

Property Neodymium fishing magnet Ferrite fishing magnet
Pull per kg Very high Low
Typical rating 400 – 2,000 lb 50 – 150 lb
Corrosion Needs NiCuNi or epoxy coating Naturally resistant
Handling risk High above 800 lb Low
Best use Recovery, salvage, deep water Teaching, shallow creeks

Strong magnets for fishing are always neodymium, because a ferrite unit is a teaching aid rather than a recovery tool. Past ankle depth, neodymium is the only practical option.

Safety Rules Before You Throw

A 1,200 lb magnet closes on steel faster than you can move a hand.

Read this before the first cast

  1. Keep the magnet away from pacemakers, phones, cards and mechanical watches. Distance, not shielding, is the protection.
  2. Never put a hand between the magnet and steel. Approach from the side and let it snap to the target.
  3. Do not fish near gas lines, bridge bearings, moorings or anything structural you could disturb.
  4. Check local rules: magnet fishing is restricted or banned in some waterways and heritage sites.
  5. Report unexploded ordnance and firearms. Do not carry them home or clean them on site.

Fishing Magnet FAQ

What size fishing magnet should a beginner buy?
An 800 lb double-sided unit covers most river and jetty work without becoming hard to handle. A 400 lb magnet is enough for a first season in shallow water.
Why did my magnet lose strength after a few trips?
Usually coating damage letting water reach the neodymium, or heat from leaving it in a hot car. Inspect the plating and store it dry.
Can I use a fishing magnet in salt water?
Yes, but rinse and dry it after every session. Salt attacks the plating at scratches and the eye thread first.
Do you supply the rope and accessories?
The magnet fishing kit includes rope, gloves and thread lock. Bare magnets ship without them.

Buying for a shop or a club?

Tell us target weight and water type. We quote per unit and can brand the packaging.

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