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What kind of glue is used to secure the motor rotor coil neck?

The rotor is an important component of a motor, responsible for converting electrical signals into mechanical motion. The rotor coil is one of the rotor's key components, and its secure fixation is crucial. If the coil becomes loose or falls off, it will directly affect the normal operation of the entire motor, thereby impacting the equipment's efficiency and service life.

In addition to its fixing function, motor rotor adhesives can also enhance product performance and quality. Their main functions are as follows: 

1.  Improve the motor's waterproof rating to protect its internal components from the effects of moisture. 

2.  Improve the motor's heat resistance so that it can operate normally even in high-temperature environments. 

3.  Improve the corrosion resistance of the motor so that it can operate normally even in harsh environments. 

4.  Improve the motor's seismic resistance and reduce vibrations and noise during operation. 

 

Hinnel motor rotor coil neck fixing adhesive: 

 

Hinnel HN6020H-2 Single-component epoxy structural adhesive, Featuring high thixotropy, the adhesive does not easily flow or sag after application, and can accurately adhere to complex gaps and stress-concentrated areas such as the neck of rotor windings, achieving stable shaping without the need for additional tooling support. The product exhibits excellent temperature resistance and can -40℃~180℃ Operates stably over a wide temperature range—remains non-brittle in low-temperature environments and does not soften or deform under high-temperature conditions, ensuring perfect compatibility. F Level, H Operating requirements for Class F insulated motors. 

 

At the same time, it boasts both high bonding strength and excellent electrical insulation performance. After curing, it adheres tightly to substrates such as coil insulation layers and rotor core materials, effectively resisting centrifugal forces, vibration impacts, and thermal cycling stresses caused by high-speed rotation. This provides reliable structural protection and insulation assurance for the neck region of rotor coils, making it particularly suitable for applications—such as medium- and high-speed motors and dry-type motors—that place stringent demands on adhesive layer stability and temperature resistance. 

 

How to properly apply the adhesive for bonding the outer layer of the coil?

 

Correctly applying the adhesive for the outer layer of the coil is crucial to ensuring its performance and longevity. During application, the following points should be noted: 

 

1.  Clean the coil surface: Before applying the adhesive, be sure to ensure that the coil surface is clean and free of oil or grease to enhance the adhesion of the adhesive. 

 

2.  Even Coating: Use an appropriate tool to apply the adhesive evenly onto the coil surface, ensuring that there are no areas of uneven thickness. 

 

3.  Control the curing conditions: Based on the curing requirements of the adhesive, carefully control the curing temperature and duration to ensure that the adhesive fully cures and achieves the desired performance. 

 

The adhesive used to bond the outer layer of the coil plays a crucial role in coil manufacturing. It is recommended that, before making a formal selection, you conduct simulated tests using small-batch samples under actual operating conditions. Only by choosing the right structural adhesive can you ensure the long-term stable operation of the motor. Hinnel boasts mature products and successful application cases in motor potting compounds; we highly recommend that you explore our offerings. Hinnel official website Learn about adhesive application cases and consult Hinnel's application engineers for detailed adhesive solutions.

 

 

 

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