Product Details

Magnetic coupling, also known as permanent magnetic coupling, is a transmission method that connects a motor and another device using permanent magnetic force. It is commonly used in magnetic-driven pumps to transport corrosive, volatile, flammable, explosive, and toxic solutions without leakage. A permanent magnetic coupling consists of an external coupling, an internal coupling, and a containment shroud (spacer sleeve). The introduction of permanent magnetic coupling has effectively addressed the leakage issues associated with dynamic sealing in certain mechanical devices.

 

 

 

 

Permanent magnetic coupling operates by utilizing the power generated by permanent magnets, eliminating the need for an external power supply. These magnets are permanent magnets, not electromagnets, and are installed in an alternating pattern between poles in a side-by-side and opposing position.

 

Material Selection:

Magnet: The choice of magnet depends on the working temperature and corrosion resistance requirements.

NdFeB – Suitable for temperatures up to 150°C. Requires corrosion protection.

Ceramic – Suitable for temperatures up to 250°C. Does not require corrosion protection.

SmCo – Suitable for temperatures up to 350°C. Corrosion protection is optional.

 

Housing: Options include normal carbon steel, stainless steel (304, 316, 416, etc.), and nickel super alloys (Inconel, Hastelloy, Monel, etc.).

Spacer sleeve: Options include stainless steel, nickel super alloys (Inconel, Hastelloy, Monel, etc.), plastics (Nylon, Teflon, etc.), and ceramics.

 

Spacer sleeve: Options include stainless steel, nickel super alloys (Inconel, Hastelloy, Monel, etc.), plastics (Nylon, Teflon, etc.), and ceramics.

 

 

 

1. Achieves zero leakage power transfer by replacing traditional dynamic seals with static sealing.


2. Ensures stable operation of the device without contact, avoiding the transmission of vibrations.


3. Can be applied in various harsh working environments, including flammable, explosive, corrosive, damp, high-dust content, high temperature, and low temperature conditions.


4. Energy-saving: Improves efficiency while allowing for load speed adjustment.


5. Flexible torque requirements: Can be customized within a range from 100mNm to 1000N.m.

 

 

We need your help to design the permanent magnetic coupling.

1. How much torque(force) would you like to transmit?


2. What's the working speed?(velocity or RPM)


3. What's the operating temperature range?


4. Is the containment shroud required? What pressure differential would you like the design to accommodate?


5. Dimensions reference

 

External Coupling

1). Shaft size

2). Mounting type

• Set screw and key


• Compression (threaded shaft end)


• Taper Lock (not available on all sizes)

3). Max. OD

4). Max. Length

 

Internal Coupling

1). Shaft size

2). Mounting Type

• Set Screw and key


• Compression (threaded shaft end)


• Taper Lock (not available on all sizes)

3). Max. Length

 

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