Precision Engineering for Global OEMs

Custom Telecom Enclosure services

From rapid prototyping to high-volume production, Supro MFG delivers one-stop precision metal fabrication with ISO-certified quality. Reduce your lead times and production costs with our expert DFM support.

1-3 day Rapid Prototyping & Agile Supply Chain Delivery.
On-time delivery of high quality product commitments.
Extensive Material Selection & Industrial-Grade Finishing.
Direct-from-Factory Pricing & Transparent Costing.
ISO 9001-2015 / IATF 16949:2016 certified system.
Integrated Assembly: Delivering finished, ready-to-use products, not just components.

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Rapid Prototypes, DFM Optimization, On-Time Delivery, Real Manufacturer Quote.

Rapid stamping die Turnaround

Committed to exceeding expectations for quality and rapid turnaround, and meeting high-quality sheet metal parts.

Consistency & high quality

Whether it is rapid prototyping & large-volume manufacturing, we will implement it according to customer needs and standards.

Low Cost Effective

Integrate product design, bending, stamping, cutting, surface treatment, etc. to provide a series of manufacturing solutions.

Precision Metal Fabrication Services in China | Custom OEM Solutions & Rapid Prototyping

Your Strategic Partner for Telecom Enclosure Fabrication

At Supro MFG (Supro Manufacturing Co., Ltd.), we don’t just manufacture parts; we engineer reliability. As a leading China metal fabrication factory, we bridge the gap between complex design and cost-effective production. By leveraging our ISO 9001:2015 & IATF 16949 certified facilities and a seasoned engineering team, we provide 3,000+ global clients with unparalleled custom metal fabrication services—direct from the source with transparent, manufacturer-level pricing.

We specialize in the high-quality manufacturing and assembly of custom metal parts, with processing capabilities encompassing: sheet metal fabrication, metal stamping, CNC machining, laser cutting, metal welding, metal spinning, deep drawing, aluminum extrusion, die casting, as well as customized finished product assembly and surface treatment services.

From concept prototypes to mass production,

Supro MFG is your most reliable partner and you will benefit from our manufacturing services.

Securing Your Designs with Enterprise-Grade Confidentiality at Every Stage of Manufacturing

Your Innovation, Protected:
Uncompromising IP Security & NDA Compliance

At Supro MFG, we understand that your designs are your most valuable assets. As a strategic sheet metal stamping partner, our commitment to your intellectual property is absolute. We operate under a strict Zero-Leak Policy, ensuring that every blueprint, CAD file, and prototype remains strictly confidential within our secure engineering ecosystem.

We proactively offer comprehensive Non-Disclosure Agreements (NDAs) that align with international legal standards, providing you with a transparent and enforceable framework for cooperation. Beyond legal paperwork, our internal protocols include segmented data access, secure server encryption, and rigorous staff training on IP sensitivity. Whether you are a startup scaling a disruptive product or an OEM managing sensitive aerospace components, Supro MFG acts as a secure extension of your own facility. Partner with a metal stamping manufacturer that values your competitive advantage as much as you do.

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What Is a Telecom Enclosure

A telecom enclosure is a specialized cabinet designed to house and protect sensitive network and communications equipment, such as routers, switches, fiber-optic systems, and power systems. It shields sensitive hardware from environmental hazards—including extreme weather, dust, vandalism, and unauthorized access—while ensuring optimal operating conditions.

Designed for reliability, Telecom Enclosures are manufactured from high-quality aluminum, galvanized steel, or stainless steel and strictly comply with NEMA and IP protection rating standards. With over 20 years of enclosure manufacturing experience, Supro understands that a high-quality Telecom Enclosure must incorporate advanced electromagnetic interference (EMI)/radio frequency interference (RFI) shielding technology to maintain signal integrity, while also featuring integrated thermal management solutions—such as precision-punched louvers and active cooling brackets—to effectively dissipate heat.

At Supro MFG, we leverage our deep expertise in sheet metal fabrication to manufacture custom telecom enclosures that fully meet your project specifications, offering end-to-end services ranging from CNC punching and welding to high-durability outdoor powder coating.

Common Issues with Telecom Enclosures: Analysis and Solutions

The reliability of telecom enclosures is non-negotiable. On-site failures caused by poor sheet metal fabrication quality can result in damage to network infrastructure, incur high downtime costs, and void warranties. Based on our extensive manufacturing data and field feedback, the following are the most common defects found in telecom enclosures, their root causes, and preventive measures.

Water and Dust Ingress (Failure to Meet IP/NEMA Ratings)

Leaks are typically caused by inconsistent weld gaps, door misalignment due to thermal warping, or the use of low-cost, manually applied rubber gaskets (which degrade under UV exposure).

Supro employs continuous TIG welding on all external seams to eliminate micro-gaps. We replace hand-applied gaskets with seamless, CNC-extruded, Form-in-Place (FIP) polyurethane gaskets. Rigorous IP65/IP66 or NEMA 4X water spray tests are conducted during quality inspection to verify the enclosure’s sealing performance.

EMI/RFI Shielding Failure

Powder coatings applied to mating surfaces act as insulators, causing a break in electrical continuity. Large gaps between the door and door frame can also lead to electromagnetic leakage.

Before powder coating the telecom enclosure, Supro treats critical internal contact points, grounding studs, and mating flanges with high-temperature masking tape. Conductive metal mesh tape or beryllium copper gaskets are installed to ensure a complete Faraday cage effect.

Sharp Edges and Unremoved Burrs on Telecom Enclosures

Some manufacturers omit the deburring process to save time or use incorrect laser cutting parameters (resulting in slag). This poses serious safety risks to telecom technicians during installation.

Supro enforces strict deburring protocols, using automatic vibratory polishing machines or rotary brush chamfering equipment to ensure that all internal and external edges are completely safe and harmless to the touch.

Shipping Damage (Dents and Scratches)

This is primarily caused by substandard packaging, such as single-wall corrugated boxes without corner protectors, or metal-to-metal contact during container loading, resulting in severe surface and structural damage prior to installation.

Supro employs heavy-duty double-wall corrugated boxes, high-density EPE foam corner protectors, and PE surface protection film to design customized engineering packaging. Telecom enclosures are securely strapped and shrink-wrapped onto heat-treated wooden pallets to prevent shifting during ocean or truck transport.

No design files? Let Supro MFG do it for you.

We often come across clients who have no professional design drawings and documentation, only a creative idea, which leads to the project being at a standstill.

If you are in this situation, then contact our team of experts.

Supro MFG, as an industry-leading custom metal fabricator, has an ever-experienced team of engineers who utilize their extensive fabrication experience and technical expertise to build your idea into a real product and create design files such as STEP/STP/SLDPRT/DXF/PDF/PRT/DWG/AI.

That’s what makes SUPRO MFG so great, and 2,000 corporate, entrepreneurial, artist, and other purchasers from around the world enjoy working with us and benefiting from our one-stop manufacturing services.

A part is only as good as its finish.

High-Performance Surface Finishing: Aesthetics Meets Durability

At Supro MFG, we understand that professional custom metal fabrication requires more than just structural integrity—it demands surface treatments that withstand harsh environments and strict aesthetic standards.

Our integrated finishing shop provides a seamless transition from the production line to the final coating, ensuring tight control over lead times and quality.