Low-Pressure Injection Molding Encapsulation for Fan Motors

The protective requirements of fan motors under long-term high-speed operation, high-temperature environments, and exposure to dust and oil contamination are critical. Traditional encapsulation methods often suffer from sealing failure, thermal damage, and insufficient mechanical strength, which compromise the motor's service life and operational reliability. KYLOTE® MBPA low-pressure injection molding technology offers customers tailored encapsulation solutions, providing durable and reliable protection to ensure optimal performance throughout the motor’s entire lifecycle.

Low-Pressure Injection Molding Encapsulation for Fan Motors image 2

OurKey Advantages

Low-pressure molding (0.1~0.7 MPa):Avoids high-pressure damage to the motor’s internal precision windings and bearing components, meeting the stringent stress requirements of modern motor designs.
Low-temperature injection molding (≤200℃):Prevents thermal damage to the motor’s metal housing and internal insulation materials, safeguarding insulation performance and extending motor life.
‌Low water absorption rate (≤0.2% @7 days):Reduces moisture ingress in high-temperature and high-humidity environments, minimizing the risk of internal short circuits and enhancing weather resistance.
‌High adhesion and mechanical strength:Ensures structural integrity during high-speed vibration and frequent start-stop cycles, preventing encapsulation layer cracking or delamination.
‌Environmental aging resistance (85℃/85% RH/1000 hours):Maintains toughness even at low temperatures (-40℃), making it suitable for outdoor fans, industrial ventilation equipment, and other multi-scenario applications.
‌Rapid curing:Significantly shortens production cycles, boosts manufacturing efficiency, and meets the customization demands of small-batch, multi-variety fan motor production.
High-sealing protection:Achieves IP67 waterproofing, completely blocking dust ingress and ensuring normal motor operation even after brief immersion in water; passing a 60-day salt spray test effectively resists corrosion in coastal and industrial environments, substantially prolonging motor lifespan.