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Eddy Current Magnetic Coupling

/Eddy Current Magnetic Coupling
  • Eddy Current Magnetic Coupling

Eddy Current Magnetic Coupling, Asynchronous Magnetic Coupling, Eddy Current Linear Planar Coupling Side by Side, Magnetic Eddy Current Coupling Face to Face, Eddy Current Linea Coaxial Magnetic Coupling, Permanent Magnetic Coupling Drive Manufacturer

Eddy Current Magnetic Coupling – This coupling is an asynchronous version that relies on a speed mismatch between the driver and follower to produce a force. An array of alternating pole permanent magnets (N-S-N-S) is placed on either the driver or follower, and an electrically conductive material (typically aluminum or copper) is placed on the mating component. When the driver is translated with respect to the follower, an electrical current is induced in the conductive material, which results in a magnetic field that opposes the permanent magnets and “couples” the two components. Amperes Law governs the relationship between the induced electric and resultant magnetic fields.

The magnitude of the resultant force is directly linked to:
1. Speed differential between the two components
2. Magnetic material characteristics
3. Resistivity of the conductive media
4. Separation distance between the driver and follower.

Unlike the Synchronous Coupling (Class 1), this asynchronous version is a “lossy” device and prone to Ohmic loss heating resultant from the induced electric fields. Pump Magnetic Couplings

A magnetic coupling is a device that is capable of transmitting force through space without physical contact.  Attractive and repulsive magnetic forces are harnessed to perform work in either a linear or rotary fashion.  In its simplest form, a magnetic coupling is comprised of two components: a driver and a follower.

Magnetic materials – Application dependent. Typically based on thermal and corrosion resistance requirements

NdFeB
Temperatures up to 150°C
Corrosion protection required
SmCo
Temperatures up to 350°C
Corrosion protection optional
Ceramic
Temperatures up to 250°C
Corrosion protection not required
Hysterlloy (Type III – hysteresis couplings)
Temperature up to 350°C
Corrosion protection not required

Help me designs
1. What type of coupling is required?
1. Linear
2. Torque
2. What topology are you considering?
1. Face-to-face (torque coupling)
2. Coaxial (torque coupling)
3. Tubular (linear coupling)
4. Planar (linear coupling)
3. How much force or torque would you like to transmit?
4. What Class of coupling are you considering?
1. Class I – Synchronous
2. Class II – Eddy Current
3. Class III – Hysteresis

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  • Customized is Available
  • Affordable price
  • Quality guaranteed
  • T/T or L/C accepted
  • Other payment accepted
  • Fast shipping, Worldwide delivery
  • 24-Hours excellent customer service
  • Offer free magnetic solution
  • Bulk discounts for larger orders

Product Range

Imperial
PROS CONS USE
Greatest volumetric force density Limited to a 1:1 motion ratio Devices requiring direct coupling with no slip during operation
Metrics
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