Case Study: Customized Coffee Machine Motor for German Client

Background
The German high-end coffee machine brand "KaffeeTech" plans to launch a compact home espresso machine targeting European consumers who prioritize energy efficiency, quiet operation, and aesthetic design. The client required a motor that delivers high energy efficiency (compliant with EU ERP energy standards), ultra-low noise (<45 dB), and meets German GS safety certification and eco-material standards (e.g., RoHS), all within an extremely compact installation space.

Core Client Requirements & Challenges

Space Constraints: Motor dimensions must not exceed 80mm × 60mm × 50mm while delivering 15Bar pressure for professional-grade espresso extraction.

Noise Reduction: Traditional coffee machine motors typically exceed 55 dB, but the client demanded noise levels below 45 dB (equivalent to library ambient sound).

Environmental Compliance: Required 100% recyclable copper windings and elimination of fluorinated coatings to align with EU REACH regulations.

Smart Control: Integration of an IoT module interface to enable pressure curve adjustments via a mobile app (e.g., low-pressure initiation during pre-infusion phase).

Customized Solutions

Structural Innovation: Brushless DC Motor + 3D-Printed Titanium Alloy Housing

Replaced traditional brushed motors with a brushless DC motor (BLDC), reducing friction noise and improving efficiency by 30%.

Utilized lightweight 3D-printed titanium alloy housing with topology optimization design, achieving a 40% weight reduction while maintaining thermal performance.

Noise Reduction Technology: Low-Wear Bearings + Noise-Dampening Airflow Design

Implemented low-wear bearing technology to minimize mechanical contact noise.

Integrated an internal spiral noise-reduction airflow channel, achieving tested noise levels of 42 dB (lab data).

Eco-Friendly & Smart Integration

Adopted Eco-Coat® certified copper windings (TÜV-approved) to eliminate VOC emissions from traditional insulation varnishes.

Pre-installed standardized CAN bus interface for seamless compatibility with the client’s proprietary IoT control system, enabling programmable pressure-time curve adjustments.

Localized Compliance Support

Collaborated with Germany’s TÜV lab to complete 100,000-cycle endurance testing and IP67 waterproof certification, ensuring GS safety compliance.

Provided a full lifecycle carbon footprint report to meet German supply chain ESG disclosure requirements.