Custom Precision Sheet Metal Enclosures

End-to-end design, fabrication, and assembly of highly durable metal electronic chassis, server racks, and industrial cabinets. Certified to meet IP-rated protection and strict EMC shielding standards, engineered to protect your critical components.

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Types of Enclosures We Can Manufacture

Industrial Enclosures

Heavy-duty enclosures specifically built for industrial automation, manufacturing plant machinery, robotics, and machine control applications, offering excellent structural stability.

NEMA Enclosures

Weatherproof and dustproof enclosures manufactured to meet NEMA standards. Protects sensitive internal components from dust, water, oil, and harsh environmental corrosion in outdoor locations.

Electrical Enclosures

Custom-engineered electrical cabinets and control boxes designed for power distribution systems and industrial wiring protection. Built with precise cable entries and mounting pans.

Electronic Enclosures

Precision-fabricated small to medium enclosures designed for PCBs, embedded systems, telecommunication hardware, and smart devices. Features tight tolerances and excellent cosmetic finishes.

Precision Enclosure Standards

IP-Rated Protection

For electronics exposed to moisture, rain, or dust, executing a rugged waterproof sheet metal enclosure design is essential. At Tenghui, we integrate specialized water shedding channels, continuous polyurethane foam gaskets (FIPG), and watertight compression latches to deliver IP rated dustproof enclosure solutions (up to IP65/IP66) that shield sensitive components in harsh industrial environments.

Advanced EMI/RF Shielding

High-frequency electronic assemblies require robust isolation from external noise. We design and manufacture specialized EMI shielding sheet metal enclosure units with features such as overlapping metal joints, grounding studs, and conductive metal-gasket channels. These elements eliminate radiation leakage, functioning as an effective RF shielding metal box to ensure complete electromagnetic compatibility.

High-Precision Assembly

Misaligned cutouts or loose hardware can completely ruin a production run. By maintaining precise sheet metal enclosure cutout tolerances of ±0.1mm, we guarantee that all USB, HDMI, and D-sub connectors align perfectly with your internal PCBs. Additionally, our automated hardware presses ensure flawless installation of PEM self clinching fasteners assembly, preventing any loose studs or stripped threads.

Sheet Metal Enclosures FAQs

For maximum corrosion resistance in outdoor environments, we highly recommend using marine-grade aluminum (such as 5052) or stainless steel, followed by an epoxy-based zinc primer and a UV-resistant polyester powder coating. This combination ensures maximum defense against moisture, chemicals, and solar radiation.

Yes. We offer comprehensive hardware installation as part of our enclosure fabrication services. This includes automated pressing of self-clinching PEM studs, nuts, and standoffs, as well as installing mechanical hinges, key-locking latches, gaskets, handles, and mounting brackets.

We design EMI-shielded enclosures by ensuring continuous electrical contact along all mating seams. This is achieved by masking specific flange areas prior to powder coating (leaving bare metal contact zones) or by incorporating specialized conductive fabric-over-foam or beryllium-copper shielding gaskets.

For standard configurations without overly complex custom tooling, we can fabricate and deliver a functional sheet metal enclosure prototype within 3 to 7 working days, depending on the chosen surface treatment (such as powder coating or silk screening).