Material
High-strength cold-rolled steel
Powder-Coated Steel Distribution Box
Our powder-coated steel distribution box is designed to offer a rugged, reliable, and affordable solution for indoor electrical distribution systems. Constructed from high-quality cold-rolled steel and finished with a durable powder coating, this enclosure provides excellent protection against dust, dirt, and mechanical impacts.
Whether you’re managing a commercial building, an industrial control system, or a data center power setup, this wall-mounted enclosure delivers consistent performance and a professional appearance.
Key Features:
Powder Coating Advantage
Our enclosures are finished with high-performance polyester powder coating, offering:
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Strong adhesion and scratch resistance
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UV-stable color retention
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Resistance to chemicals and mild corrosion
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Smooth and easy-to-clean surface
Standard color is light grey RAL7035, but other colors like RAL9005 (black), RAL7032, or custom branding colors are available on request.
RAL7035
RAL7032
RAL9005
Nonstandard Powder-Coated Steel Distribution Box Are Customizable
0. Consultation (Optional)
Discuss project requirements, application conditions, and enclosure recommendations.
1. Submit Your Design
DWG, STEP, PDF, or even a sketch — we accept all formats and provide quick feasibility checks.
2. Technical Evaluation
Our engineers review structure, materials, cutouts, and protection level requirements, offering optimization if needed.
3. Prototyping & Sampling
Prototype or small-batch samples are produced to verify dimensions, fitment, strength, and surface finishing quality.
4. Mass Production
After approval, full-scale fabrication begins—laser cutting, bending, welding, assembly, and coating under strict QC.
5. Packing & Delivery
Finished enclosures are inspected, packaged with protective materials, and shipped globally by sea or air.
Comprehensive Customization Options for Your Metal & Electrical Enclosures
Size
Custom width, height, and depth tailored to your installation and component layout needs.
Color
Industrial-grade RAL powder coating for safety identification and corrosion resistance.
Material types & Thickness
Cold-rolled steel, stainless steel, galvanized steel, or aluminum with selectable thickness based on strength and protection requirements.
Door and hinge Types
Single-door, double-door, reinforced door designs, concealed or lift-off hinges.
Door Locks
Quarter-turn locks, key locks, padlockable handles, and compression latches.
View Windows
Polycarbonate or tempered-glass viewing windows for safe equipment monitoring.
Mounting Plate
Custom mounting plates for breakers, relays, contactors, and internal components.
UV Printing
Durable UV printing for labels, warnings, logos, or control panel markings.
Enclosure Rating
IP54 / IP55 / IP65 and NEMA protection levels based on sealing design and environment.
Accessories
Cooling fans, ventilation louvers, lighting, brackets, cable glands, document holders, etc.
Cutouts & Machining
Laser-cut openings for switches, displays, connectors; CNC machining for precision interfaces.
Surface Finishing Options
Powder coating, spraying, galvanizing, brushing, polishing, and anti-corrosion treatments.
Professional Custom Enclosure Manufacturer
Wenzhou Vililong Technology Co., Ltd.
We are a professional manufacturer specializing in high-quality Electrical enclosures, offering a wide range of solutions for electrical and industrial applications. Our products, including Electrical Distribution Boxes&Cabinets, as well as customized enclosures and Rittal Alternatives, are engineered using advanced sheet metal processing technologies (such as laser cutting,CNC bending, welding robots, etcto) ensure precision, durability, and superior performance.
0Years experience
Electrical Enclosure
Manufacturing
Manufacturing
0Employees
R&D, design, production
Technical team
Technical team
0Equipments
Automated production equipment
0sqm
Modern production and manufacturing base
Laser Cutting Machine
It can be used for cutting a variety of metal materials and has the advantages of fast processing speed, fine workmanship, strong adaptability and high flexibility..
CNC Bending Machine
Precise and accurate CNC bending equipment. Customized design to meet your multiple bending needs.
Bending Machine
Large tonnage bending machine to meet customer requirements for large box.
Welding Robot
Panasonic welding robots provide you with reliable peace of mind and assured products
Professional Drawing
Professional sheet metal engineers to meet customer customization needs.
Quantity Production
5000 square meters of plant and professional production equipment and personnel, to meet the mass production of customers.
Certification
CE
IP65
ISO9001
Why Choose Our Powder-Coated Steel Distribution Box
Reliable Material & Superior Finish
Our enclosures are made from premium-grade mild steel, offering excellent strength and machinability. Each unit is finished with an advanced polyester powder coating, ensuring:
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Strong adhesion and resistance to scratches
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Long-lasting color with UV protection
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Protection against mild corrosion and indoor humidity
Standard finish is RAL7035 light grey, but we also offer custom colors upon request.
Precision Manufacturing with Modern Equipment
All enclosures are fabricated using CNC laser cutting, bending, and automated welding, ensuring tight tolerances and clean edges. This guarantees:
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A sleek, professional appearance
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Precise alignment for doors, gaskets, and mounting plates
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Consistent quality across batches
Space-Efficient & Compact Design
Designed for applications where space is limited, our compact enclosures maximize internal space while maintaining a slim exterior. They’re ideal for:
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Building automation control panels
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Access control systems
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Electrical terminal enclosures
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Indoor power distribution units
Customizable for Your Project Needs
We understand every project is different. That’s why we offer:
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Custom sizes and cutouts
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Choice of door opening (left/right)
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Gasket sealing for IP54/IP65 protection
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Optional accessories: DIN rails, locks, cable glands, mounting brackets
OEM & branding services are available—including logo printing, laser engraving, and custom packaging.
Pickling & Phosphating Treatment for Steel Enclosures
Pickling and phosphating is a critical pretreatment process used in the surface preparation of metal components, especially before powder coating or painting. This process improves the corrosion resistance and enhances paint adhesion, ensuring the durability and performance of the final product.
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Pickling involves the use of acid solutions (commonly hydrochloric or sulfuric acid) to remove surface rust, scale, and oxides from mild steel or carbon steel sheets.
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Phosphating is a chemical conversion process that forms a thin, insoluble layer of phosphate crystals on the metal surface. This phosphate coating improves surface roughness for better paint adhesion and provides mild corrosion protection.
Customer Reviews
Carlos Méndez
OEM Partner, Mexico
"We’ve been sourcing compact enclosures from this supplier for over a year now. The powder-coated finish is excellent, with no chipping during installation. Cable entry cutouts were done exactly to spec. Highly recommended for reliable indoor use."
Suda Kittisak
Purchasing supervisor,Thailand
"These powder-coated steel boxes are a great balance between price and quality. The build is solid, edges are smooth, and the coating holds up very well under humid conditions. We use them in our building control systems—zero issues so far."
Frequently Asked Questions (FAQ)-Powder-Coated Steel Distribution Box
What is a powder-coated steel enclosure?
A powder-coated steel enclosure is a metal housing made from mild steel and finished with an electrostatically applied powder coating. It provides a strong, corrosion-resistant, and aesthetically clean solution for housing electrical and electronic components.
What are the advantages of powder-coated steel over stainless steel?
Powder-coated steel is more cost-effective, easier to fabricate, and suitable for indoor use. While it doesn’t offer the same level of corrosion resistance as stainless steel, the powder coating provides good protection in most indoor or semi-dry environments.
What protection rating (IP) do your enclosures offer?
Our powder-coated steel enclosures are available with IP54, IP65 ratings, depending on the design and sealing options. These ratings ensure protection against dust, moisture, and water ingress.
Are your enclosures suitable for outdoor use?
Standard powder-coated enclosures are designed primarily for indoor or sheltered outdoor use. For full outdoor applications, we recommend stainless steel enclosures or additional weatherproofing options.
Can I customize the size, color, and cutouts?
Yes! We offer full OEM/ODM customization, including:
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Custom sizes
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Laser-cut openings for connectors or meters
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Logo printing
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Color options (standard RAL7035, RAL7032, RAL9005, etc.)
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What material is used for the powder coating?
We use polyester or epoxy-polyester hybrid powder coating, which offers excellent adhesion, UV stability, and scratch resistance. The standard thickness is 60–80 microns.
What thickness of steel is used in the enclosure?
Our standard enclosures are made from 1.2mm to 2.0mm cold-rolled steel, depending on the size and load requirements. Thicker panels are used for larger enclosures to ensure structural strength.
Do your enclosures come with mounting plates and accessories?
Yes, most models include a galvanized steel mounting plate, and optional accessories such as:
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Cable glands
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DIN rails
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Locks & handles
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Ventilation louvers or filters
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Are the enclosures compliant with international standards?
Yes. Our enclosures are designed to meet IEC 60529, CE, and RoHS requirements. UL-certified options can be offered for certain markets upon request.
What industries typically use these enclosures?
Powder-coated steel enclosures are widely used in:
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Industrial automation
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Building control systems
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Electrical power distribution
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Communication and low-voltage control panels
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Professional Powder-Coated Steel Distribution Box Manufacturer
Brings Excellent Services
How Can We Help Your Business?
What’s your company main products?
The main business is to provide customers with custom enclousure services, we also sell some General Boxes.
How about the price of the product?
We are a manufacturer, we mainly provide customized services for our customers, and we believe that our prices have enough advantages.
What does the enclosure customization service contain?
Box Sizes,Box Colors,Door Types,Gland Plates,Specific Cutouts,Moutning Plates,Protective Covers,Standing Types,Windows,Thickness,Accessories.
Can we get the sample? Is it free?
Yes, we could offer the general box sample for free charge,but need you pay the express. The freight depends on weight, packing size and your country or province region, etc.
What’s about MOQ?
First order MOQ=1pcs.
How can I get product catalogs?
You can get the catalogs by contacting us.
How to order our product?
1.Please tell us the model and quantity and other request you need.
2.We make the PI for you.
3.After you confirm the PI, we arrange the order for you after receiving your payment.
4.After the goods finished, we send the goods out to you and tell you the tracking number.
5.We will track your goods until you receive the goods.
How about the after-sale service?
If you meet any problems after sales, pis contact us freely, we’ll help solving the problems within 24 hours.
What’s the payment term?
100% T/T (large order, accept 30% T/T prepay 70% balance before shipping), Western Union, Paypal.