Introduction
At Shenzhen Urain Metal Products Co., Ltd., we specialize in bespoke sheet metal fabrication and CNC machining—delivering end-to-end custom solutions for high-tech clients across Europe, North America, and Asia. From concept to final surface finishing, we partner with global OEMs to transform complex design requirements into precision-engineered enclosures that meet the most stringent industry standards. This case study highlights our work with a leading global high-tech client, where we delivered custom stainless steel and aluminum enclosures for their next-generation industrial control systems.
Project Challenge
Our client, a pioneer in industrial IoT and automation, required custom enclosures with:
- Complex CNC-machined cutouts, threaded holes, and precision mounting features for sensitive electronic components
- Dimensional accuracy of ±0.05mm to ensure seamless assembly with their internal hardware
- Corrosion resistance and durability for deployment in harsh industrial environments
- A clean, professional brushed finish that aligned with their premium brand identity
- Full compliance with RoHS and REACH regulations for seamless export to EU and North American markets
Our Custom Solution
1. Collaborative Design & DFM Optimization
Our engineering team worked directly with the client’s R&D department to refine their prototype designs for manufacturability (DFM). We identified opportunities to simplify complex geometries without compromising performance, reducing production lead times by 15% while maintaining the required precision.
2. Precision Sheet Metal & CNC Machining
- Sheet Metal Fabrication: We used laser cutting and CNC bending to form the enclosure shells from 304 stainless steel and 6061 aluminum, ensuring consistent wall thickness and tight bend radii.
- CNC Machining: Our 5-axis CNC mills created intricate cutouts, countersinks, and threaded holes for component mounting, achieving the client’s ±0.05mm accuracy requirement.
- Welding & Assembly: TIG welding was used for stainless steel enclosures to create strong, leak-proof joints, followed by precision grinding to blend welds seamlessly into the final structure.
3. Advanced Surface Treatment
To meet the client’s performance and aesthetic goals, we implemented a tailored surface finishing process:
- Deburring & Edge Rounding: Automated deburring removed all sharp edges and machining burrs, ensuring safe handling and a clean, refined profile.
- Passivation (Stainless Steel): A nitric acid passivation process eliminated free iron contaminants, forming a protective chromium oxide layer that boosted corrosion resistance for long-term reliability.
- Brushed Finish: A uniform directional brushed finish was applied to all exterior surfaces, delivering a sleek, industrial look that matched the client’s brand guidelines while resisting fingerprints and minor scratches.
- Anodizing (Aluminum): For aluminum enclosures, we applied a hard anodized coating to enhance wear resistance and provide additional corrosion protection.
Project Outcomes
- Zero-Defect Delivery: All 2,000+ custom enclosures passed 100% dimensional and quality inspections, with zero rejections in the first production batch.
- Regulatory Compliance: Our surface treatment and material selection fully met RoHS and REACH standards, enabling the client to launch their product in EU and North American markets without delays.
- Long-Term Partnership: The client has since expanded their partnership to include additional custom sheet metal and CNC projects, citing our reliability, precision, and proactive communication as key differentiators.
- Performance Validation: Field testing confirmed the enclosures maintained their structural integrity and corrosion resistance in high-temperature, high-humidity industrial environments.
Conclusion
This success story underscores our ability to deliver bespoke sheet metal and CNC solutions that empower global high-tech clients to bring innovative products to market. By combining engineering expertise, precision manufacturing, and rigorous quality control, we transform complex design challenges into reliable, high-performance components that drive our clients’ success.
If you have a custom sheet metal or CNC machining project for your high-tech application, contact our engineering team today to discuss how we can bring your vision to life.