Industrial Mild Steel Enclosures: Full-Weld Construction, IP66 Protection, and Custom Fabrication

Industrial environments demand durable and reliable electrical enclosures that protect critical components from water, dust, mechanical impact, and corrosion. At Hofeng Fabrication, we specialize in designing and manufacturing high-performance mild steel enclosures tailored for demanding outdoor and industrial applications.

Our mild steel enclosures deliver IP66 protection, IK10 mechanical impact resistance, and are engineered for use in temperatures ranging from -40°C ～ +80°C. This makes them suitable for power distribution, IoT systems, electrical control, communication modules, automation equipment, and a wide range of industrial applications.

Full-Welded Construction for Superior Strength

Unlike low-cost enclosures that are spot-welded from several machine-cut plates, our cabinets are fully welded as a single piece. Full welding ensures:

✓ Increased structural strength
✓ Better rigidity under mechanical stress
✓ Improved sealing performance
✓ Longer service life in harsh outdoor conditions
✓ Reduced deformation during installation and transport

With full welding, the steel cannot be too thin, which is why we use cold-rolled steel and maintain strict thickness control for both the cabinet body and the door.

Material & Specifications

素材： Cold-rolled mild steel
Protection Grade: IP66
Mechanical Impact: IK10
Working Temperature: -40°C ～ +80°C
Cabinet Body & Mounting Plate: 1.5 mm thick
Door Panel: 1.2 mm thick or 1.5 mm thick
取付プレート： Galvanized or painted finish
Surface Treatment: Powder-coated, RAL7035 (Light Gray)
Standard Supply Includes:

• Grounding wire

• Metal mounting feet

• Key lock

• Earthing facilities

• Door + mounting plate + gasket + accessories

Available Sizes:

• 40×30×15 mm

• 60×40×20 mm

• 80×60×25 mm

All models are single-door and finished in RAL7035 gray.

Corrosion & Rust Protection Surface Finish

After welding, every enclosure undergoes:

Phosphating + Powder Coating

This treatment significantly enhances:

✓ Adhesion of paint
✓ Corrosion resistance
✓ Anti-rust performance
✓ Lifespan under outdoor exposure

This is a key advantage over low-cost cabinets that rely solely on cheap paint coatings.

Customization & OEM Services

For global industrial projects, standard sizes alone are not enough. At Hofeng, customization is part of our core service.

We offer OEM/ODM capabilities including:

✔ Custom dimensions & thickness
✔ Custom mounting plate layout
✔ Multi-door configurations
✔ Cutouts, holes, vents, cable entries
✔ Logo & labeling printing
✔ Locking systems & accessories
✔ Color customization (RAL color options)
✔ IP rating upgrades & testing

Whether you're working on new automation equipment, IoT deployment, telecom infrastructure, or power distribution integration, we can support engineering from concept to finished product.

Manufacturing Capabilities

Our factory combines sheet metal fabrication with advanced finishing equipment. In-house capabilities include:

• CNC Laser Cutting

• CNC Bending

• Full Welding & Robotic Welding

• Machining & Tapping

• Surface Treatment & Coating

• Assembly & Quality Inspection

• Packaging & Export Logistics

This vertical control ensures competitive lead times, consistent quality, and flexibility for batch production or prototyping.

Applications

Our cabinets are widely used in:

• Industrial automation

• Power distribution

• IoT & smart devices

• Renewable energy systems

• Communication and networking

• Building management systems

• Outdoor control units

• Measurement & monitoring

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About Hofeng Fabrication

Hofeng Fabrication (China) specializes in metal enclosure production for international B2B OEM clients. With a focus on precision fabrication and industrial-grade performance, we support customers in Europe, North America, Australia, and emerging markets.

Learn more or request customization at:
🌐 www.hofengfab.com

For drawings or RFQs, feel free to contact our engineering team.