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A reliable sheet metal fabrication partner is critical for precision enclosures. Shirui delivers end-to-end custom manufacturing from laser cutting to welding and assembly. With over a decade of OEM/ODM experience, we handle prototypes to high-volume production with on-time delivery.
What Is Custom Sheet Metal Fabrication?
Sheet metal fabrication is the process of transforming flat metal sheets into finished products through cutting, bending, welding, and surface treatment. Custom fabrication means every dimension, material, and finish is tailored to your exact specifications—no off-the-shelf compromises. For outdoor enclosures, EV charging cabinets, projector housings, and industrial control panels, custom fabrication ensures a perfect fit, optimal thermal performance, and long-term durability in harsh environments.
We specialize in non-standard, custom-built metal enclosures. Our team works from your engineering drawings, physical samples, or even a conceptual brief to deliver production-ready parts.
Our Core Sheet Metal Processes
We offer a complete in-house manufacturing chain, so your parts never leave our facility until they are finished and inspected:
| Process | Capability Specification |
| Laser Cutting | Cutting tolerance: ±0.1 mm; clean, burr-free edges |
| CNC Bending | Max bending length: 4000 mm; angle tolerance: ±0.5° |
| Welding | TIG / MIG / Spot / Stud welding for strong, clean joints |
| Fastening & Tapping | Self-clinching rivets, blind riveting, CNC tapping M3–M12 |
| Surface Finishing | Powder coating, hot-dip galvanizing, liquid painting, polishing |
| Assembly & Testing | Full assembly, IP rating testing, leakage testing, in-house QC |
Our equipment handles material thicknesses from 0.5 mm to 20 mm, covering everything from thin-gauge electronic enclosures to heavy-duty industrial cabinets.
Materials We Work With
Different applications demand different metals. We help you select the right material based on your environment, budget, and performance requirements:
- Stainless Steel (SS304 / SS316 / SS201): Excellent corrosion resistance for outdoor, coastal, and food-grade applications. SS316 is preferred for saltwater and chemical exposure.
- Galvanized Steel: Cost-effective rust protection for indoor and moderate outdoor use. A popular choice for network cabinets and standard enclosures.
- Aluminum: Lightweight and corrosion-resistant, ideal for portable equipment and heat-dissipating housings.
- Carbon Steel / Cold-Rolled Steel: High strength at a lower cost, typically powder-coated or painted for corrosion protection.
- Copper & Other Metals: Available for specialized conductive or aesthetic applications on request.
Surface Finishing Options
The right finish protects your product and enhances its appearance. We offer:
- Powder Coating: Durable, scratch-resistant, available in custom RAL colors. The most popular finish for outdoor enclosures.
- Hot-Dip Galvanizing: Maximum corrosion protection for steel parts exposed to the elements.
- Liquid Painting: Suitable for complex geometries and specialty color requirements.
- Polishing / Brushing: Decorative finishes for stainless steel visible surfaces.
Common Sheet Metal Products We Manufacture
Our fabrication expertise spans a wide range of industrial and commercial products:
- Outdoor Projector Enclosures: Weatherproof, climate-controlled housings with integrated cooling (fan, AC, or hybrid), heating, and dehumidification. IP65/IP66 rated.
- Stainless Steel Cabinets & Control Panels: Industrial control enclosures, electrical cabinets, and custom stainless steel housings.
- Outdoor Network Cabinets: Weatherproof telecom and networking enclosures with ventilation and cable management.
- EV Charging Cabinets: Durable, corrosion-resistant housings for electric vehicle charging stations.
- Industrial Equipment Housings: Custom enclosures for machinery, instrumentation, and specialized equipment.
Our products are deployed in city lighting, interactive projection, cultural tourism projection, architectural mapping, water-screen shows, mountain landscape lighting, gardens, cinemas, and exhibition halls worldwide.
Why Choose Shirui as Your Fabrication Partner
- One-Stop Service: From design and prototyping to mass production and shipping—everything under one roof.
- 10+ Years of Experience: Established in 2012, with a proven track record in outdoor enclosure manufacturing and global export.
- OEM / ODM Capability: We manufacture from your drawings, samples, or collaborate on custom design and engineering.
- Precision You Can Trust: Laser cutting at ±0.1 mm and bending at ±0.5° ensure parts fit together perfectly, every time.
- 24-Hour Quick Response: Our team responds to inquiries and technical questions within one business day.
- Flexible Volume: We support low-volume prototypes and high-volume production runs with the same quality standards.
Quality Control & Certifications
Quality is built into every stage of our process:
- Incoming material inspection to verify grade and thickness
- In-process quality checks at each manufacturing stage
- Final inspection including IP rating testing, leakage testing, and dimensional verification before shipment
Our products hold IP65, IP66, CE, ROHS, and EMC certifications, meeting international standards for outdoor and industrial use.
Frequently Asked Questions
What sheet metal fabrication services do you provide?
We offer laser cutting, CNC punching, CNC bending, welding, grinding, assembly, and surface finishing—all in-house.
Can you manufacture according to samples?
Yes. We can produce based on physical samples or engineering drawings (STEP, IGES, DXF, or PDF).
What sheet metal materials do you work with?
We process stainless steel (SS201/304/316), carbon steel, galvanized steel, aluminum, copper, and other metals per customer requirements.
How do you ensure product quality?
We perform incoming material inspection, in-process quality checks, and final inspections before shipment. Every enclosure undergoes IP and leakage testing.
Can you handle large-scale production?
Yes. Our advanced equipment and experienced team support both low-volume prototyping and high-volume manufacturing. Contact us with your project details for a custom quote.
What is the typical lead time?
Prototype lead times are typically 7–15 days. Production lead times depend on quantity and complexity, usually 20–35 days. We will provide a detailed timeline with your quote.
Conclusion
Choosing the right sheet metal fabrication partner means choosing precision, reliability, and long-term value. At Shirui, we combine over a decade of manufacturing expertise, in-house capabilities across every process, and a commitment to quality that has earned the trust of customers worldwide. Whether you need a single custom enclosure or a production run of thousands, we deliver from prototype to finished product—on time, on spec, and on budget. Explore our sheet metal fabrication services or request a free quote today.
