S.G. Frantz Electromagnetic Separators use electric current through wire coils to create magnetic fields that remove ferrous contamination from liquids, slurries, gases, and dry powders. As material passes through the separator matrix, magnetic particles are captured along the collecting edges.

S.G. Frantz offers several magnetic separator series to match different process requirements. The F1 provides reliable, general-purpose separation, while the F1E and F2 offer greater background field strength and capabilities for more demanding applications. Custom-engineered separators are also available when a standard configuration does not meet your process requirements.

Why Choose Electromagnetic Separation?

S.G. Frantz designs electromagnetic separation equipment around the material being processed and the conditions of the application. Key benefits include:

  • Background field strength matched to the application: Available background field strengths  range from approximately 500 Gauss to more than 2,500 Gauss.
  • Easy cleaning: The magnetic field can be switched off, allowing captured material to be released for fast, automated cleaning.
  • Suitable for demanding conditions: Equipment can be configured for high temperatures, high pressures, and hazardous environments.
  • Flexible matrix options: Vanes, grids, wire wool, and other matrix materials can be selected based on the material and separation requirements.

Series F1: General-Purpose Separation

Approximately 1,000 Gauss

The Series F1 is our longest-running electromagnetic separator line. Its reputation for dependable operation is backed by F1 units that have remained in service for more than 50 years.

For wet materials, we have three F1 configurations:

  • Gravity Flow: An open, top-fed configuration
  • Underfeed: An open, bottom-fed configuration
  • Pipeline: A closed configuration for pressurized applications

For dry materials, the F1 is available with vane-type or wet-type grids. Vane-type grids provide a standard, economical option. Wet-type grids use the same type of grids used for liquid applications and can provide 3 to 5 times greater effectiveness per pass when processing moderately free-flowing powders.

Standard temperature capability is up to 176°F. Special designs are available for applications up to 400°F.

Series F1E: Higher Pressure, Improved Performance

The Series F1E is a pipeline-only separator for applications that require higher temperature capability and stronger magnetic separation. Its background field is more than 50% stronger than the F1, and the unit is rated to 150 psi and 400°F.

We offer two F1E models based on capacity:

  • 64T2-F1E: 650 to 2,000 GPH
  • 74T2-F1E: 1,300 to 4,000 GPH

The F1E requires continuous cooling water. For applications involving higher pressures, ASME code-stamped versions are available.

Series F2: For Demanding Separations

2,500+ Gauss

When your process calls for a stronger magnetic field, the Series F2 provides S.G. Frantz’s highest standard background field strength. At more than 2,500 Gauss, the F2 produces more than twice the background field strength of the F1.

For wet materials, the F2 is available in gravity and pipeline configurations. Cooling water is required for wet F2 applications.

For dry materials, the standard configuration uses vane-type grids. Wet-type grids are also available for moderately free-flowing powders. At the matrix edges, background field strength can reach nearly 23,000 Gauss.

Our F2 separators are commonly used in ceramics, pharmaceuticals, chemicals, and food processing where stronger separation is needed.

Rectifiers

Electromagnetic separators require DC current to produce their magnetic fields. Our rectifiers convert line voltage into the DC current required by the separator.

Standard rectifiers use NEMA Type 1 enclosures and are available for common voltages. We can also provide special designs for uncommon voltages and applications involving wet, corrosive, or hazardous environments. Available enclosure options include NEMA 12, 4, 4X, and 7.

Custom-Engineered Separators

If a standard magnetic separator does not fit your process, we can work with you on a custom configuration. Custom designs may include ASME code-stamped pressure vessels, explosion-proof construction, special voltages, and other non-standard requirements.

Talk with us about your process requirements to determine whether a custom-engineered magnetic separator is the right solution.

Series Comparison

Feature F1 F1E F2
Background Field ~1,000 Gauss 1,500+ Gauss 2,500+ Gauss
Configuration Gravity, Underfeed, Pipeline Pipeline only Gravity or Pipeline
Maximum Temperature 176°F (400°F special) 400°F 176°F (400°F special)
Best For Most applications Higher temperature, finer particles Hardest separations

Frequently Asked Questions

What's the difference between the F1, F1E, and F2?

The F1 is S.G. Frantz’s general-purpose magnetic separator, with a background field strength of approximately 1,000 Gauss. The F1E is a pipeline-only design with a field more than 50% stronger than the F1 and a rating of 150 psi and 400°F. The F2 provides the strongest standard field, at more than 2,500 Gauss, for demanding separation applications.

Can S. G. Frantz separators be used in hazardous or corrosive environments?

Yes. S.G. Frantz offers explosion-proof wet and dry units and rectifier enclosures rated NEMA 4, 4X, and 7 for applications involving hazardous or corrosive environments.

What's the difference between wet-type and vane-type dry grids?

Vane-type grids are the standard and economical choice for dry materials. Wet-type grids can provide 3 to 5 times greater effectiveness per pass when processing moderately free-flowing powders.

Find the Right Separator for Your Process

Not sure which electromagnetic separator fits your application? S.G. Frantz can help you compare the available options based on your material, flow rate, operating conditions, and separation requirements.

Contact S.G. Frantz to discuss your application, or use Which magnetic separator Do I Need? to find the right series for your process.