Sunmy Hardware: Precision Custom Manufacturing Solutions – CNC Machining, Die Casting & Beyond for Global Clients
In today's competitive manufacturing landscape, custom production has become the cornerstone for businesses aiming to capture market opportunities. Established in 2016, Shenzhen Sunmy Hardware Co.,Ltd. stands out as a leading industrial and trade company in Shenzhen, specializing in custom parts and products that meet diverse global demands.
We focus on manufacturing customized components across various industries, offering comprehensive solutions tailored to both domestic and international clients. Our service portfolio includes precision CNC machining, reliable OEM machining, and end-to-end customization capabilities that ensure every project meets exact specifications.
Success Stories: Turning Challenges into Solutions
Medical Equipment Precision Machining: Micro Spinal Surgery Forceps
A leading medical device manufacturer approached us with stringent requirements: producing micro spinal surgery forceps with a blade width of 0.025mm (tolerance ±5μm) and a jaw clearance under 5μm—equivalent to 1/16 the diameter of a human hair.
Our team deployed 5-axis high-speed machining technology (JDGR100) to achieve one-time clamping for roughing, finishing, and deburring, eliminating multi-setup errors. Using in-machine measurement systems and precision "one-click start" programs, we completed process development in just 3 days and delivered 24 trial units. All samples passed rigorous inspection with blade widths controlled within 0.025±0.003mm and surface roughness Ra＜0.15μm, fully complying with medical-grade precision and hygiene standards.
Automotive Lightweight Component: Microcellular Foam Injection Molding
Partnering with a European new energy vehicle supplier, we addressed the critical need for automotive lightweighting through microcellular foam injection molding. This innovative process creates a "sandwich" structure with smooth surfaces and internal micro-pores (10 - several tens of microns), reducing part weight by 30% while maintaining structural integrity.
Our R&D team optimized mold gate design and temperature control systems, mastering the precise thermal and pressure parameters for microcellular formation within six months. The resulting components reduced vehicle weight (contributing to 0.3-0.6L/100km fuel savings) and improved production efficiency via shortened cooling cycles. This collaboration helped our client achieve over 20% annual growth in their lightweight component division.
Electronics Industry: Custom Aluminum Housing for 5G Devices
A US-based electronics firm required a custom aluminum housing for their new 5G communication device, demanding precise dimensions, superior heat dissipation, and flawless surface finish—compounded by complex internal ribs and narrow channels.
Leveraging our integrated manufacturing capabilities, we combined aluminum die casting for the base structure with precision CNC machining for critical features. Our advanced die casting techniques minimized porosity to below 1%, ensuring EMI shielding performance. Subsequent CNC operations achieved ±0.01mm dimensional tolerances, meeting all functional requirements. We delivered 10,000 units within a tight 45-day timeframe with zero incoming inspection defects.
Industrial Stamping: Stainless Steel Flapper Valves for Compressors
For a major air compressor manufacturer, we tackled high-volume production of stainless steel flapper valves with strict flatness requirements. Fabricated from Sandvik 7C27Mo2 martensitic stainless steel, the valves required 0.0080″±0.0004″ thickness and ±0.5° flatness to ensure proper sealing and extended service life.
Our stamping specialists developed a proprietary finishing process to enhance fatigue strength while maintaining dimensional stability. Using a 35-ton punch press with precision tooling, we established a stable production workflow that consistently meets tight tolerances. To date, we've delivered over 5,000,000 units with a defect rate below 0.01%, earning recognition as a trusted stamping service provider in the compressor industry.
Our Comprehensive Capabilities
We specialize in serving the US market with tailored USA custom hardware parts, backed by our expertise as a leading aluminum die casting parts supplier. In automotive sectors, our automotive components customization adheres to the industry's strictest standards.
For electronics manufacturers, we provide custom aluminum machining parts and operate as a reliable custom electronic components manufacturer. Our custom lathe parts service—available both as a manufacturer and per-drawing production—guarantees precision execution.
As a full-service custom parts manufacturer in China, we deliver custom metal parts and custom spare parts across material spectrums. Our die casting expertise complements our role as an industrial parts supplier, while our injection molding solutions—including specialized injection molding for industrial components and plastic parts—set industry benchmarks.
In medical manufacturing, our precision machining for medical equipment parts meets exacting hygiene and accuracy standards, alongside our production of precision plastic components. Our stamping service for stainless steel brackets further demonstrates our versatility across industrial applications.
Our expert team excels at translating client requirements—whether complex drawings or physical samples—into high-quality custom products. With robust R&D capabilities and a complete production ecosystem (Casting, Lathe, Machining, Stamping, Injection Molding), we consistently meet global client needs.
Visit sunmyhardware.com to explore our project gallery and connect with our engineering team for personalized solutions tailored to your specific requirements.