As the leading brand of high-end Italian coffee machines (with a 28% share of the global market), Delonghi places stringent demands on the reliability of core components in its fully automatic coffee machines:

Extreme working environments: 98°C high-temperature steam/6.5 bar pressure cycle impact;

High-frequency usage scenarios: Commercial models operate more than 500 times per day on average;

Safety standards: Must meet multiple international certifications, including UL/ENEC.

Traditional microswitches commonly exhibit the following issues under these conditions:

Contact oxidation leading to poor contact (failure rate >3%);

Plastic housings deform when heated (15% deformation rate at temperatures above 80°C);

Insufficient waterproof performance

Our company has introduced a structurally optimized solution:

Dual-contact redundancy design: primary and secondary contacts are detected simultaneously, reducing the failure rate to 0.001%;

Magnetic-assisted reset mechanism: eliminates traditional spring fatigue issues, achieving a lifespan exceeding 800,000 cycles;

Product testing:

Temperature shock: 1,000 cycles at -40°C to 125°C (temperature change >100°C/min);

Chemical corrosion: Passed immersion testing with coffee machine-specific cleaning agents (pH 2.5–11.5);

Mechanical vibration: 20G at 50–2,000 Hz random vibration (equivalent to 80,000 km of vehicle use).

Project Achievements and Advantages:

Zero-Failure Operation: Cumulative delivery of 6 million units over three years of mass production, achieving an after-sales failure rate of <50 ppm (industry average: 3,000 ppm)

Doubled Lifespan: Mechanical lifespan of 300,000 cycles (Delonghi's original requirement: 100,000 cycles), meeting the 7x24-hour operational requirements of commercial models