
Lingyufab (Shanghai Lingyu Industrial Co., Ltd.), established in 2003, is a leading manufacturer of outdoor electrical enclosures with over 20 years of precision fabrication experience. As a Mitsubishi Electric certified core supplier, we combine advanced laser cutting, CNC bending, welding, and powder coating to produce weatherproof housings for power distribution and control equipment. Our ISO 9001:2015 certified facility offers end-to-end services from design assistance to mass production, ensuring precision, durability, and cost-effectiveness.
Lingyufab (Shanghai Lingyu Industrial Co., Ltd.), established in 2003, stands out as a premier service manufacturer of outdoor electrical enclosures. With over 20 years of experience in precision sheet metal fabrication, we offer comprehensive solutions from 1-piece prototyping to large-scale production. Our facility is equipped with advanced laser cutting systems, CNC bending centers, stamping presses, and cold heading machines. As a Mitsubishi Electric certified core supplier adhering to Japanese quality standards, we serve clients across power distribution, renewable energy, telecommunications, and infrastructure sectors.
As a China-based manufacturer located in Shanghai, Lingyufab leverages the region's robust supply chain and skilled workforce to produce high-quality outdoor electrical enclosures at competitive prices. We adhere to ISO 9001:2015, ISO 14001, and hold TÜV CE certification. Our in-house production eliminates outsourcing costs, delivering 15 to 20 percent cost savings to customers. We support 1-piece samples, 100-piece pilot runs, and high-volume mass production with monthly output exceeding 8000 units.
Our outdoor electrical enclosures are engineered to precise specifications. Materials include stainless steel SUS304 and SUS316, carbon steel, and galvanized steel. Thickness ranges from 0.8mm to 4.0mm depending on environmental requirements. Dimensional tolerances are held to plus or minus 0.05mm for critical features. Standard features include rainproof hoods, drip shields, and sealed cable entry ports with IP66 and NEMA 4 ratings. Surface finishing options include powder coating with any RAL color, stainless steel, and galvanized steel. Custom features include viewing windows, lockable handles, and internal mounting plates. Every batch is backed by Mill Test Certificates ensuring full material traceability.
Lingyufab specializes in producing custom outdoor electrical enclosure parts including weatherproof cabinets for power distribution, solar inverter enclosures with IP66 protection, battery storage cabinets for renewable energy, telecom base station enclosures, and traffic control cabinets for roadside installation. Each part is tailored to your equipment and environmental requirements, with provisions for cable entry, ventilation, and thermal management. Our engineering team provides upfront technical support, including design optimization, sealing analysis, and cost-reduction recommendations. We support reverse engineering services. If you have a physical sample without drawings, we can 3D scan, model, and generate production-ready engineering prints. Whether you need a single prototype or thousands of units, we deliver consistent quality with zero MOQ for prototyping stages.
What truly sets Lingyufab apart is our ability to integrate the full spectrum of sheet metal processes, including laser cutting, CNC bending, welding, assembly, powder coating, and surface treatment, into a seamless manufacturing workflow for outdoor electrical enclosures. Rather than outsourcing individual steps to multiple vendors, we manage everything in-house, ensuring tighter quality control, faster lead times, and consistent communication throughout the entire production cycle. With our in-house fastener manufacturing, we can pre-install grounding studs, self-clinching nuts, and mounting brackets directly into your enclosures, eliminating external sourcing and reducing assembly time on your end. The result is a streamlined, cost-effective solution that performs reliably in the field.
Outdoor Electrical Enclosures offer superior weatherproof protection with IP66 and NEMA 4 ratings. Materials include stainless steel SUS304 and SUS316, carbon steel with powder coating, and galvanized steel. Rainproof hoods, drip shields, and sealed cable entry ports for complete weather protection. Surface finishes include powder coating with RAL color options, stainless steel, and galvanized steel. Customizable options include viewing windows, mounting brackets, lockable handles, and internal mounting plates. Full material traceability with Mill Test Certificates MTC for every batch.


Our outdoor electrical enclosures are widely deployed in power distribution for transformers and switchgear, renewable energy for solar inverter and battery storage cabinets, telecommunications for base station equipment, infrastructure for traffic control and street lighting, and industrial facilities for outdoor equipment protection. They protect sensitive electrical components from rain, dust, moisture, and UV exposure, ensuring reliable operation in outdoor conditions. Lingyufab supports 1-piece prototyping, 100-piece pilot runs, and high-volume mass production with monthly delivery exceeding 8000 units.
An outdoor electrical enclosure is a weatherproof protective housing fabricated from metal sheets through processes including laser cutting, CNC bending, welding, and powder coating. It is designed to house electrical components, power distribution equipment, and control systems in outdoor environments where protection from rain, dust, moisture, and UV exposure is required. At Lingyufab, we manufacture enclosures strictly to customer 2D prints in PDF, DWG, and DXF formats and 3D CAD models in STEP, IGES, and SolidWorks formats, ensuring 100 percent build-to-print execution.
1. Weatherproof protection with IP66 and NEMA 4 ratings
2. Rainproof hoods, drip shields, and sealed cable entry ports
3. Multiple material options including stainless steel, carbon steel with powder coating, and galvanized steel
4. Customizable sizes and configurations for various equipment requirements
5. UV-resistant powder coating for long-term outdoor durability
6. Lockable handles and hasps for security
7. Full material traceability with Mill Test Certificates for every batch
These enclosures are deployed in power distribution for transformers and switchgear, renewable energy for solar inverter and battery storage cabinets, telecommunications for base station equipment, infrastructure for traffic control and street lighting, and industrial facilities for outdoor equipment protection. They protect sensitive electrical components from rain, dust, moisture, and UV exposure, ensuring reliable operation in outdoor conditions. Lingyufab serves OEM clients across power, renewable energy, telecom, and infrastructure sectors.
When integrating an outdoor electrical enclosure into an assembly, consider mounting orientation for proper drainage, cable entry and sealing, and UV protection for long-term durability. Ensure proper sealing to maintain the specified IP or NEMA rating. Recommended design practices include maintaining minimum flange length of at least 4 times material thickness, using consistent bend radii, and adding bend relief notches at corners to prevent tearing. Our engineering team provides assembly drawings, sealing analysis, and installation recommendations to streamline your final integration.
1. Stainless Steel (SUS304, SUS316): Excellent corrosion resistance, ideal for coastal, marine, and corrosive environments
2. Carbon Steel with Powder Coating: High strength with durable UV-resistant coating, ideal for general outdoor applications with RAL color selection
3. Galvanized Steel: Rust-proof with good weather resistance, ideal for utility and infrastructure installations
1. Standard linear tolerance: plus or minus 0.13mm; Precision tolerance: plus or minus 0.05mm
2. Bending angle tolerance: plus or minus 0.5 degree with real-time laser compensation
3. Hole position accuracy: plus or minus 0.08mm for standard, plus or minus 0.03mm for precision
4. Verification equipment includes CMM coordinate measuring machines, 3D optical laser scanners, and in-bend automatic angle sensors
01. Incoming Material Control: Verify material thickness, flatness, and mechanical properties with MTC certificates
02. In-Process Control: Real-time online inspection following SOPs with automatic angle tracking
03. Final Inspection: Comprehensive dimensional verification, surface finish inspection, weld quality assessment, sealing integrity testing, and UV coating validation
04. Pre-Shipment Control: Final quality review, packaging integrity check, and complete quality documentation
1. Weatherproof power distribution cabinets
2. Solar inverter enclosures with IP66 protection
3. Battery storage cabinets for renewable energy
4. Telecom base station enclosures
5. Traffic control and street lighting cabinets
6. Custom sizes for OEM outdoor equipment
7. Pre-installed mounting plates and hardware
8. Reverse engineering of physical samples without existing drawings
Lingyufab (Shanghai Lingyu Industrial Co., Ltd.) is a certified manufacturer established in 2003 with over 20 years of precision fabrication experience. We hold ISO 9001:2015, ISO 14001, and TÜV CE certifications. We are a Mitsubishi Electric certified core supplier. Monthly production exceeds 8000 units, covering 1-piece prototypes, 100-piece pilot runs, and high-volume mass production. We support OEM and ODM manufacturing with zero MOQ for prototyping.
A: IP66 and NEMA 4 ratings are standard, with IP67 and NEMA 4X available upon request for enhanced protection.
A: Yes, we customize any size within our equipment capacity. Provide your 2D prints or 3D CAD files for a precise quote.
A: Stainless steel (304/316), carbon steel with powder coating, and galvanized steel.
A: Yes, we offer UV-resistant powder coating with any RAL color for long-term outdoor durability.
A: Zero MOQ for prototyping. We support 1-piece samples, 100-piece pilot runs, and high-volume mass production.
A: 15 to 20 working days for prototypes and 25 to 35 days for bulk orders. Expedited options available.
A: Yes, every batch includes Mill Test Certificates with full material traceability. Third-party testing is also supported.
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