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Electromagnetic Clutches

SEPAC engineers and manufactures motion control products including high-performance electromagnetic clutches. Our products are used in a variety of mission-critical applications in the aviation, defense, medical, robotics, and energy industries.

We provide engineered-to-order, precision manufactured clutches that deliver reliable torque transmission, engagement, and disengagement.

Our industry-leading clutches are listed below with torque transmission and engagement style noted:

Engagement StyleTorque TransmissionSeries
Spring Applied - Power OFFToothSETC, SECC
Spring Applied - Power OFFFrictionContact Us for Product Information
Magnetically Applied - Power ONFrictionSFDC, RFDC
Magnetically Applied - Power ONToothRFTC, SFTC, STCC, WMTC

Spring Applied Clutches

A spring applied clutch (also known as a power-off clutch) engages when the power is OFF. It features zero-slip tooth engagement, for reliable transfer of torque with no power engagement necessary. This type of clutch is ideal for applications requiring:

  • Emergency engagement.
  • Fail-safe systems.
  • Static holding.

Please inquire with our team directly to learn more about these clutches.

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SEPAC also offers Spring Applied Friction Clutches that are capable of dynamic engagement. We maintain a comprehensive archive of designs, and our skilled team has a long history of successfully fabricating these components. Note that these clutches are highly specialized and are not available as a standard product. Contact us for more information.

Magnetically Applied Clutches

Magnetically applied clutches (also known as power-on clutches) engage and transfer torque when the power is ON. This allows for a controlled, smooth transmission between shafts. This type of clutch is an optimal choice for dynamic applications requiring:

  • Frequent engagement and disengagement.
  • Precise timing.
  • Rotational control.

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Tooth Clutches

Tooth clutches provide no-slip, positive torque transfer by engaging the interlocking teeth. They are an ideal solution for restraining motion in these applications:

  • Load locking.
  • Precision actuation.
  • Static holding.

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Friction Clutches

Friction clutches engage through surface contact, making them a perfect solution for the dynamic transfer of torque in applications requiring:

  • Controlled acceleration.
  • Slip control.
  • Smooth engagement.

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What Is an Electromagnetic Clutch?

An electromagnetic clutch transmits torque mechanically through its face teeth or friction. Electromagnetic force can be generated with an energized coil, a motor, or another type of prime mover to transfer torque to a driven element through a coupled shaft or pulley to a load.

While electromagnetic brakes maintain or stop rotational movement, an electromagnetic clutch connects or disconnects two shafts. Clutches effectively control the torque transfer from one shaft to another (i.e., split in-line shafts or parallel shafts).

SEPAC specializes in engineering, designing, and manufacturing a variety of top-quality electromagnetic clutches.

Applications for Electromagnetic Clutches

SEPAC clutches are used in many different systems and industrial applications where uptime and optimal performance matter, such as:

  • Aerospace actuation systems.
  • Defense drones and ground vehicles.
  • Industrial automation and robotics.
  • Medical imaging systems and robotic surgical instruments.
  • Oil and gas valve actuators and controls.
  • Renewable energy equipment.

Why Choose SEPAC?

At SEPAC, our USA-made electromagnetic clutches are designed, machined, and tested in-house. We have extensive OEM expertise across a broad range of regulated industries and offer comprehensive custom-engineered solutions and modification services to suit unique applications.

In addition to custom designs, we carry many standard clutch products with zero-backlash and high-torque options for dynamic and static use. Our long-life clutch assemblies require minimal maintenance for less downtime.

Contact us or request a quote today to learn more about SEPAC’s electromagnetic clutches or to discuss the requirements of your application.