Pressure-Tested Quality Assurance certified

Pressure-Tested Quality Assurance

Marine-Grade Stainless Steel Standards certified

Marine-Grade Stainless Steel Standards

Electro-Magnetic Bilge Pump Float Switches

Electro-magnetic bilge pump float switches use stainless steel float balls with integrated magnets to trigger precise liquid level activation in bilge pumps, sump systems, and industrial tanks. Constructed from durable 304/316 stainless steel, these switches offer custom sizing, threads, and pressure-tested reliability for demanding marine and industrial environments.

Float Balls with Custom Threads & Fittings
Round Stainless Steel Float Balls
Float Balls with Magnets
Oblong / Oval Stainless Steel Floats

Our Range of Products

Float Balls with Custom Threads & Fittings

Float Balls with Custom Threads & Fittings

  • Customizable threads and fittings available
  • 304/316 stainless steel construction
  • Pressure-tested for reliable performance
Round Stainless Steel Float Balls

Round Stainless Steel Float Balls

  • Durable stainless steel, not plastic
  • Customizable with threads, fittings, magnets
  • Large inventory ships worldwide fast
Float Balls with Magnets

Float Balls with Magnets

  • Custom magnets for precise level detection
  • 304/316 stainless steel construction
  • Pressure-tested for high-reliability
Oblong / Oval Stainless Steel Floats

Oblong / Oval Stainless Steel Floats

  • Durable stainless steel, not plastic
  • Custom sizes and shapes to exact specs
  • Pressure-tested for high-reliability

Frequently Asked Questions

How does an electronic float switch work?

An electro-magnetic float switch uses a magnet embedded inside a stainless steel float ball that rises and falls with liquid level. As the float moves, the internal magnet aligns with a corresponding reed switch or sensor outside the float chamber, triggering an electrical signal that activates or deactivates the bilge pump, alarm, or control system without direct electrical contact with the liquid.

Which float switch is the most reliable?

What materials are used in electro-magnetic bilge pump float switches?

Can float balls with magnets be customized for specific tank sizes?

What sizes are available for magnetic float switches?

Are these float switches pressure-tested?

Do you ship stainless steel float switches worldwide?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Marine & Bilge Pump Systems

Marine & Bilge Pump Systems

Magnetic float balls trigger bilge and sump pump activation for reliable liquid level control aboard vessels and equipment.

Wastewater Management

Wastewater Management

Provides accurate level monitoring and pump activation in treatment tanks across municipal and industrial wastewater facilities.

Chemical Manufacturing

Chemical Manufacturing

Safely monitors corrosive liquid levels in chemical storage and processing tanks using corrosion-resistant stainless floats.

Food Processing

Food Processing

Monitors liquid levels in tanks and vats containing oils, syrups, and process liquids for consistent production control.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Marine & Industrial Operators Choose Stainless Steel Float Ball Company

20+ Years of Manufacturing Expertise

Over two decades of experience engineering reliable stainless steel float balls and magnetic switch components for demanding applications.

Custom Magnet Integration

Precision magnet installation inside float balls for accurate, repeatable switch activation in bilge pumps and level control systems.

Extensive Ready-Ship Inventory

Large stock of common sizes plus custom configurations, ensuring fast turnaround and reliable worldwide delivery.

Need a Custom Electro-Magnetic Float Switch? Talk to Our Team Today

Share your tank dimensions and switching requirements — we'll respond quickly with sizing, material, and pricing recommendations.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (416) 805-8132. You can also send us a quick email at richard@castingtechnologies.com.