
Lingyufab (Shanghai Lingyu Industrial Co., Ltd.), established in 2003, is a leading manufacturer of network cabinets with over 20 years of precision fabrication experience. As a Mitsubishi Electric certified core supplier, we combine advanced stamping, CNC bending, welding, and powder coating to produce standard 19 inch cabinets for network and telecom 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 network cabinets. 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 stamping presses, CNC bending centers, welding stations, and powder coating lines. As a Mitsubishi Electric certified core supplier adhering to Japanese quality standards, we serve clients across enterprise IT, telecommunications, data centers, and government sectors.
As a China-based manufacturer located in Shanghai, Lingyufab leverages the region's robust supply chain and skilled workforce to produce high-quality network cabinets 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 network cabinets are engineered to precise specifications. Standard width is 19 inches (482.6mm) with heights ranging from 12U to 47U. Depth options include 600mm, 800mm, and 1000mm. Materials include high-strength cold-rolled steel with thickness from 1.2mm to 2.5mm. Dimensional tolerances are held to plus or minus 0.05mm for critical mounting hole positions. Standard features include ventilated front and rear doors, top and bottom cable entry openings, adjustable mounting rails with U-markings, and grounding provisions. Surface finishing options include powder coating with black RAL9005 or light gray RAL7035. Load capacity up to 800kg static loading. Custom accessories include cable management panels, shelves, and mounting brackets. Every batch is backed by Mill Test Certificates ensuring full material traceability.
Lingyufab specializes in producing custom network cabinet parts including standard 19 inch cabinets in various heights and depths, cabinets with enhanced cable management features, soundproof cabinets for noise-sensitive environments, open-frame cabinets for easy access, wall-mount cabinets for compact spaces, and custom colors and finishes. Each part is tailored to your network infrastructure requirements, with provisions for cooling, cable management, and equipment mounting. Our engineering team provides upfront technical support, including design optimization and load capacity analysis. 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 stamping, CNC bending, welding, assembly, and powder coating, into a seamless manufacturing workflow for network cabinets. 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 cage nuts, grounding studs, and mounting hardware directly into your cabinets, eliminating external sourcing and reducing installation time on your end. The result is a streamlined, cost-effective solution that performs reliably in the field.
Network Cabinets offer high structural strength with heavy-duty steel frames and adjustable mounting rails. Standard 19 inch width with heights from 12U to 47U. Materials include high-strength cold-rolled steel with powder coating. Surface finishes available in black (RAL9005) and light gray (RAL7035). Standard features include ventilated front and rear doors, top cable management openings, bottom cable entry, side panels, and grounding provisions. Customizable options include adjustable mounting rails, cable management accessories, lockable doors, and various accessory mounting options. High load capacity up to 800kg. Full material traceability with Mill Test Certificates MTC for every batch.


Our network cabinets are widely deployed in enterprise IT rooms for network switches and routers, telecommunications for central office and base station equipment, data centers for network infrastructure and patching, colocation facilities for multi-tenant network equipment, and educational and government facilities for campus network infrastructure. They provide secure, standardized mounting platforms for critical network equipment with proper ventilation and cable management. Lingyufab supports 1-piece prototyping, 100-piece pilot runs, and high-volume mass production with monthly delivery exceeding 8000 units.
A network cabinet is a standardized metal enclosure fabricated from cold-rolled steel through processes including stamping, CNC bending, welding, and powder coating. It is designed to house and organize network equipment such as switches, routers, patch panels, and fiber optic termination units in the standard 19 inch form factor. At Lingyufab, we manufacture cabinets 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. High structural strength with heavy-duty cold-rolled steel frames
2. Standard 19 inch width with heights from 12U to 47U
3. Adjustable mounting rails with U-markings for precise equipment positioning
4. Ventilated front and rear doors for effective airflow and cooling
5. Top cable management openings and bottom cable entry provisions
6. Multiple finish options including black RAL9005 and light gray RAL7035
7. Full material traceability with Mill Test Certificates for every batch
These cabinets are deployed in enterprise IT rooms for network switches and routers, telecommunications for central office and base station equipment, data centers for network infrastructure and patching, colocation facilities for multi-tenant network equipment, and educational and government facilities for campus network infrastructure. They provide secure, standardized mounting platforms for critical network equipment with proper ventilation and cable management. Lingyufab serves OEM clients across enterprise, telecom, data center, and government sectors.
When integrating a network cabinet into an assembly, consider equipment mounting orientation, cable management routing, cooling airflow, and weight distribution. Ensure proper grounding and bonding for electrical safety. 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, cable management diagrams, and installation recommendations to streamline your final integration.
1. Cold-Rolled Steel (SPCC/SECC): High structural strength and cost-effectiveness, ideal for standard network cabinets with powder coating
2. Stainless Steel (SUS304): Excellent corrosion resistance, ideal for harsh environment and outdoor applications
3. Aluminum Alloy: Lightweight with good structural properties, ideal for portable and mobile applications
1. Standard linear tolerance: plus or minus 0.13mm; Precision tolerance: plus or minus 0.05mm
2. Mounting hole position accuracy: plus or minus 0.05mm for precision equipment mounting
3. Square 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 and optical measurement systems
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 and dimensional verification
03. Final Inspection: Comprehensive dimensional verification, surface finish inspection, weld quality assessment, and load capacity testing
04. Pre-Shipment Control: Final quality review, packaging integrity check, and complete quality documentation
1. Standard 19 inch network cabinets in various heights and depths
2. Cabinets with enhanced cable management features
3. Soundproof cabinets for noise-sensitive environments
4. Open-frame cabinets for easy equipment access
5. Wall-mount cabinets for compact spaces
6. Custom colors and finishes with RAL color selection
7. Pre-installed accessories including shelves and cable managers
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: Available in various heights from 12U to 47U. Custom heights are also available upon request.
A: Yes, standard depths include 600mm, 800mm, and 1000mm. Custom depths are also available.
A: Standard colors are black RAL9005 and light gray RAL7035. Custom RAL colors are available.
A: Load capacity up to 800kg static loading depending on cabinet configuration and depth.
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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