Precision Engineering for Global OEMs

Custom EV Charging Station Housing 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 EV Charging Station Housing 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.

What is an EV Charging Station Housing?

An EV Charging Station Housing is a precision-manufactured sheet metal enclosure that protects sensitive internal electronic components from the elements, vandalism, and physical damage, while also organizing cables and providing a safe, user-friendly interface.

EV Charging Station Housings are manufactured to strict NEMA 4X and IP65 standards, utilizing seamless welding and precision CNC bending processes to ensure absolute weatherproofing. Since power modules generate significant heat during Level 3 DC fast charging, high-quality EV Charging Station Housings must incorporate advanced thermal management structures, including louvered ventilation and double-layer insulation designs. Constructed from high-grade galvanized steel or marine-grade aluminum and coated with UV-resistant powder paint, these enclosures ensure long-lasting durability.

At Supro MFG, we leverage our advanced custom sheet metal fabrication capabilities to produce scalable EV Charging Station Housing units that are precision-engineered to fully meet your specific requirements for aesthetics, thermal management, and regulatory compliance.

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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Common Issues with EV Charging Station Housings

EV charging station housings must not only withstand extreme outdoor weather conditions but also protect the expensive high-voltage electrical components inside from vandalism. Even the slightest structural or manufacturing flaw can lead to catastrophic failures at the installation site and result in costly post-sales maintenance. Below, we analyze the most common defects in the manufacturing and application of EV charging station housings and provide professional engineering solutions to address them.

Leakage at Weld Seams Leading to Failure of Protection Rating

Rainwater or high-pressure car wash jets penetrate the joints and enter the interior of the EV charging station housing, causing short circuits and tripped circuit breakers, thereby failing to meet NEMA 3R/4X or IP65 standards. The causes include: the use of intermittent spot welding instead of full-penetration welding at corners; porosity, slag inclusions, or lack of fusion in the weld seams; and incorrect calculation of sealant compression.

So how can this be resolved?

Critical water-exposed areas must be fully welded using robotic CMT (Cold Metal Transfer) or TIG welding. An integrated rain gutter should be designed along the flange edges of the door panels, and on-site foamed (FIPG) polyurethane gaskets should be used to ensure uniform compression of 30%–50% when the door is closed.

Powder Coating Chalking and UV Degradation

After 1–2 years of outdoor exposure, the surface coating of EV charging station housings loses its gloss, turns white, and chinks, severely damaging the brand image. This issue arises from incorrect coating selection—specifically, the use of indoor-grade epoxy powder instead of UV-resistant outdoor-grade powder.

Supro uses Qualicoat Class 1 or Class 2 certified pure polyester or fluorocarbon (PVDF) outdoor high-weatherability powder coatings to prevent such issues.

Insufficient Vandal Resistance / Failed IK10 Test

The EV Charging Station Housing suffers severe dents when struck by a blunt object or subjected to a minor vehicle collision, and the door lock can be easily pried open. The causes include: insufficient structural rigidity; exposed hinges; and weak anti-pry design of the lock mechanism.

Supro’s design meets IK10 protection rating requirements. Panels are made of high-strength materials (such as 2.5mm aluminum alloy or stainless steel), and all hinges are concealed within the door frame (vandal-resistant hinges). A three-point anti-vandal door lock (such as Dirak or Emka industrial locks) is used to eliminate external prying points.

Internal Condensation Accumulation

When there is a large temperature difference between day and night, condensation forms on the inner walls of the EV Charging Station Housing and drips onto the high-voltage motherboard or contactors, causing short circuits. The primary causes of this issue are: excessive airtightness of the housing without temperature and humidity management design; and a lack of air convection channels.

Supro incorporates a “dual-wall design” into its EV Charging Station Housing to block solar radiation heat, and equips the housing with louvres featuring a hydrophobic filter or anti-condensation heaters.

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.