In the structure of servo motors, the adhesion between the rotor and the magnet is a key link that affects the performance and lifespan of the motor. With the development of motors towards high power density, high speed, and high temperature resistance, the adhesive used for magnetic steel bonding must remain stable under high temperature, high centrifugal force, and high vibration conditions.
This article will introduce the ELAPLUS epoxy adhesive series suitable for bonding servo motor magnets and rotors, covering both single component and two-component solutions, fully meeting different process and performance requirements.
The core challenge of bonding servo motor magnets
The rotor magnet of servo motors is usually fixed by adhesive bonding. Due to its complex working environment, higher requirements have been put forward for adhesives:
Strong high temperature resistance: The operating temperature of the motor can reach 150-180 ° C;
High shear strength and resistance to centrifugal force: prevent magnet detachment during high-speed rotation;
Low shrinkage rate and high Tg: reduce cracking and stress caused by thermal expansion and contraction;
Anti aging and anti vibration: ensuring long-term operational reliability;
Adaptation to automated dispensing: Suitable fluidity and curing efficiency are required.
In response to these needs, Yilian has launched multiple epoxy structural adhesives that can stably achieve high-strength bonding between magnets and metal rotors.
Elaplus servo motor magnet bonding special epoxy adhesive series
1. EP 1766-1K single component epoxy adhesive
Curing conditions: 100 ° C for 1 hour
Tg value: 120 ° C
Features: low viscosity, easy to glue, high strength after curing, and good dimensional stability.
Application advantages: Suitable for automated batch dispensing production, high bonding strength after curing, and not easily brittle.
✅ Recommended application: Magnetic bonding for small and medium-sized servo motors and stepper motors.
2. EP 1769-1K High Tg Micro Flowing Epoxy Adhesive
Curing method: Thermal curing
Temperature resistance: 180 ° C
Features: High Tg structural design, low shrinkage rate, excellent heat resistance and mechanical strength.
Application advantages: It can self fill in narrow gaps and form a tough and reliable adhesive layer after curing.
✅ Recommended applications: Magnetic steel bonding for high-speed servo motors and industrial robot motors.
3. EP 2029-2K two-component high-strength epoxy adhesive
Ratio: 2:1
Temperature resistance: 180 ° C
Characteristics: High shear strength, high peel strength, and both toughness and rigidity after curing.
Application advantages: Suitable for bonding magnets and stator cores that require extremely high structural stability.
✅ Recommended applications: Magnetic steel fixation for medium and large servo motor rotors, and structural bonding for permanent magnet synchronous motors.
4. EP 2022-2K tough epoxy adhesive
Ratio: 2:1
Curing conditions: Room temperature for 12 hours
Temperature resistance: 150 ° C
Characteristics: Excellent toughness, strong adhesion, and convenient construction.
Application advantages: No need for heating and curing, suitable for maintenance, on-site assembly, and prototype verification.
✅ Recommended applications: Room temperature curing scenarios, motor assembly or maintenance bonding.
Product Performance Comparison
EP 1766-1K Single component 100 ° C × 1h 120 ° C High strength, low viscosity Small motor magnet bonding
EP 1769-1K single component thermosetting 180 ° C high Tg, high temperature resistance, low shrinkage high-speed servo motor
EP 2029-2K two-component 80 ° C × 2h 180 ° C high peel strength, high shear strength industrial grade servo motor
EP 2022-2K two-component, room temperature 12h, 150 ° C, good toughness, easy construction, room temperature maintenance and assembly
The core advantages of the Elaplus EP series
High temperature without delamination: the highest temperature resistance can reach 180 ° C;
High shear strength: ensuring the stability and reliability of the magnet;
Excellent anti-aging and anti vibration performance;
Automation friendly design: suitable for dispensing machines or manual glue application;
Satisfy different curing processes: choose from fast curing, room temperature curing, micro flow and other types.
Whether it is a high-speed servo motor or a precision controlled permanent magnet motor, the Yilian EP series epoxy adhesive can provide a stable and reliable solution for magnet bonding.
Choosing the appropriate adhesive for servo motor magnets not only determines whether the magnets are stable, but also concerns the safety and efficiency of the motor.
The Yilian EP series epoxy adhesive, with excellent high temperature resistance, mechanical strength, and reliable bonding performance,
It has become a long-term selection product for multiple motor manufacturers.
Tags: Magnetic Material Adhesive · Magnetic Steel Adhesive · Magnetic Adhesive
