Diver Magnet - 320
The Diver Magnet – 320 is a heavy-duty twin subsea magnet for demanding commercial diving operations. It combines two 78 mm neodymium pot magnets (the Diver Magnet – 160 core, N42 grade) under one handle, giving a 320 kg rated pull force and much greater sliding resistance than a single magnet — ideal on risers, vertical members and other offshore structures where a stable position matters. Each magnet is sealed in epoxy and HDPE for continuous saltwater use. The assembly has a 316 stainless steel M10 eye nut for tools and lanyards and a stainless steel handle that gives a firm grip for positioning and controlled leverage when detaching. Built for harsh subsea environments, the Diver Magnet – 320 offers dependable holding power for heavy commercial diving tasks.
Pull Force: 320 kg · Magnetic face Ø: 2 × 78 mm · Grade: N42 · Coating: Epoxy-HDPE · Depth: proven in service to 150 m · Country of origin: South Africa
The Diver Magnet - 320 is a heavy-duty neodymium pot magnet rated at 320 kg pull force — engineered for demanding offshore operations including pipeline work, structural inspection, and heavy tool holding in strong currents. Manufactured by Diving Magnets (Pty) Ltd in South Africa with Epoxy-HDPE coating for corrosion resistance and 316 stainless steel hardware, this diver magnet is trusted by commercial diving professionals worldwide.
What is the Diver Magnet - 320 used for?
- Heavy tool holding during offshore pipeline repair and maintenance
- Structural steel inspection on offshore jackets and risers
- Securing welding equipment and cutting tools underwater
- Subsea construction support and diver positioning
- Deep-water inspection tasks in high-current environments
Features & Benefits
- 320 kg rated pull force — heavy-duty for demanding offshore operations
- Magnet sealed in epoxy and HDPE for continuous saltwater use
- 316 stainless steel eye nut and handle hardware — highly corrosion-resistant in marine environments
- Reinforced body design to maintain integrity in high currents
- Suitable for pipeline, structural, and offshore construction work environments
What surfaces does the Diver Magnet - 320 work on?
Works best on
- Mild steel and carbon steel (best performance — flat, clean surfaces)
- Cast iron structures and components
- Structural steel beams, columns, and plate
- Steel pipelines and risers
- Ship hulls and marine vessel steel
Reduces performance
- Rusted or corroded surfaces — rust and scale create an air gap that reduces pull force
- Painted or coated surfaces — coating thickness creates an air gap
- Curved surfaces — reduced contact area lowers effective pull
- Thin metal (under 5 mm) — insufficient material for full flux path
Will not work on
- Aluminium, brass, copper, and bronze (non-ferrous metals)
- Most austenitic stainless steels (304, 316) — little or no attraction, slightly magnetic only where cold-worked or welded
- Concrete, wood, plastic, fibreglass, and composites
- Titanium and non-magnetic alloys
Safety Guidelines
- Always wear protective gloves when handling magnets rated above 100 kg pull force — pinch injuries are the most common hazard
- Keep magnets away from dive computers, compasses, and electronic instruments — strong magnetic fields can cause permanent damage
- Never allow two magnets to snap together uncontrolled — the collision force can shatter the magnet and cause flying debris
- Use a safety lanyard to secure the magnet to your harness — prevents loss in current or during detachment
- Attach at a 45° angle and rotate flat — never approach a steel surface head-on with a strong magnet
- Brief your dive team on magnet location — unexpected strong pull near steel structures can trap equipment or limbs
Care & Maintenance
- Rinse thoroughly with fresh water after every saltwater use — salt crystals accelerate corrosion if left on the coating
- Dry completely before storage — moisture trapped against the magnet surface causes coating breakdown over time
- Inspect the Epoxy-HDPE coating regularly — any chips or cracks expose the neodymium core to corrosion
- Remove iron filings and metal particles after each use with a wire brush or cloth — accumulated debris reduces pull force
- Store in a cool, dry environment away from electronic equipment — temperatures above 80°C permanently reduce magnetic strength
- Apply a thin layer of corrosion inhibitor (light oil or silicone spray) for long-term storage
Built for demanding offshore operations
- Experienced commercial divers working on heavy offshore structures
- Operations requiring 320 kg pull force for heavy tools, welding equipment, or cutting gear
- Dive teams operating in strong currents where extra holding power is critical
- Pipeline contractors and subsea construction companies
- Recommended when safety margins demand higher pull force than the load requires
Frequently Asked Questions — Diver Magnet - 320
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