Custom Seamless Sheet Metal Enclosures
At DureX Inc., we specialize in precision metal enclosure fabrication—delivering durable, high-quality solutions engineered to protect sensitive equipment in demanding environments. Located in Union, NJ, our team combines advanced manufacturing technology with decades of experience to produce custom sheet metal enclosures that meet exacting standards.
✔ Fast turnaround | ✔ Made in New Jersey | ✔ Built for performance
What Is Metal Enclosure Fabrication?
Metal enclosure fabrication is the process of designing and building protective housings for electrical systems, industrial equipment, and sensitive components. At DureX, we fabricate enclosures that are not only durable and precise but also customized to meet the specific requirements of your application, demonstrating our ability to work with various materials and handle custom or specialized projects.
Metal enclosures play an important role in ensuring safety, security, and operational efficiency across a wide range of industrial and electrical applications.
DureX enclosures can be fabricated to meet third-party certification requirements, such as UL or C-UL, which are essential for safety, quality assurance, and regulatory compliance in different markets.
From compact boxes to full-size cabinets, our enclosures are used across industries like automation, medical devices, telecommunications, and HVAC. These metal housings safeguard components against dust, moisture, impact, and other environmental risks—ensuring safety, performance, and long-term reliability.
By choosing a local partner like DureX, you gain the benefits of responsive communication, better oversight, and faster delivery—without the risks of overseas production.
Types of Metal Enclosures We Fabricate
No two applications are alike—and neither are our enclosures. DureX designs and fabricates a wide range of metal enclosures, including:
Custom Metal Enclosures built to your exact specifications
Electrical Enclosures designed to house power supply and distribution systems
NEMA Enclosures for industrial and weatherproof protection
Stainless Steel and Powder-Coated Enclosures for added durability and corrosion resistance
Indoor and Outdoor Enclosures, sized and configured for any location
Our enclosures are available in a wide range of sizes, and the size of the enclosure can impact features such as structural framing and support.
Whether you need a single prototype or thousands of production units, our in-house capabilities allow us to deliver enclosures that meet the highest standards for protection, appearance, and performance.
Capabilities & Materials
Our Union, NJ facility is equipped with cutting-edge fabrication machinery, giving us full control over every stage of production. We work with a broad selection of metals to meet both aesthetic and functional demands, including:
Stainless steel
Aluminum
Mild steel
Brass
Powder-coated finishes
DureX utilizes advanced manufacturing processes to deliver custom sheet metal enclosures tailored to your specific requirements.
Core Capabilities:
Precision turret punching and CNC laser cutting
Forming and bending with automated press brakes
TIG and MIG welding
Surface finishing: powder coating, polishing, anodizing
Prototyping and scalable production up to 15,000 units
Our flexibility allows us to fabricate enclosures of virtually any size, thickness, or configuration—while keeping your costs and lead times competitive. DureX is a trusted expert in sheet metal enclosure manufacturing for a wide range of industrial applications.
Design & Engineering Support
At DureX, every metal enclosure starts with a smart design—and that begins with collaboration. Our in-house engineering team works closely with your designers and project managers to ensure each enclosure meets exact specifications and fits seamlessly into your equipment or system, allowing for better space utilization and efficient organization of components.
Using advanced CAD software, we can produce complex geometries, multi-part assemblies, and custom features such as:
Gland plates
Hinged doors
Access panels
Ventilation features
Mounting tabs and brackets
Whether your application involves a high-voltage electrical enclosure, a custom HVAC housing, or a precision-machined control cabinet, our design process ensures structural integrity, ease of installation, and long-term protection.
Serving the Northeast and beyond, DureX supports local OEMs, engineering firms, and contractors in developing enclosures that are as functional as they are reliable.
Fabrication Techniques
Fabrication techniques are at the heart of producing custom sheet metal enclosures that deliver exceptional quality, protection, and performance. The process of creating custom enclosures involves a series of specialized methods—each chosen and refined to meet the exact specifications and requirements of the application, the type of metal, and the environment in which the enclosure will be installed.
For custom metal enclosures, the fabrication journey begins with precise cutting and punching, ensuring that every panel and opening is tailored to house sensitive equipment securely. Bending and forming techniques are then used to create the desired shapes and configurations, whether for compact electrical boxes or large industrial cabinets. Welding is essential for assembling components, providing the structural integrity and durability needed to protect valuable equipment in demanding settings.
Stainless steel enclosures, for example, require advanced fabrication methods to maintain their corrosion resistance and strength, while NEMA enclosures are engineered with techniques that prioritize safety and long-term reliability in industrial environments. Accurate metal fabricating is crucial for applications where airflow, temperature control, and security are paramount—such as power supply units or electrical enclosures that support critical operations.
To further enhance durability and resistance to harsh conditions, powder coated finishes are often applied, providing an extra layer of protection against corrosion, dust, and moisture. Components like gland plates, doors, and access panels are carefully fabricated and installed to ensure secure access, optimal airflow, and easy maintenance, all while maintaining the enclosure’s protective qualities.
Every step in the fabrication process—from material selection to final assembly—requires a high level of expertise, advanced equipment, and a commitment to quality. By leveraging a full range of fabrication techniques, manufacturers can create custom sheet metal enclosures that are not only built to last but also tailored to the unique needs of each project. Whether for industrial, commercial, or specialized applications, these enclosures provide the security, safety, and performance needed to protect sensitive equipment and ensure reliable operation in any environment.
Our Fabrication Process
Our metal enclosure fabrication process is built for precision, repeatability, and speed. Here’s how we bring your custom enclosure to life:
Design & Material Selection – We start by reviewing your specs and selecting the right material for function, environment, and cost.
Cutting & Punching – Using our AMADA turret presses and CNC laser cutters, we process the metal with tight tolerances and minimal waste.
Forming & Bending – Parts are bent using automated press brakes with European-style tooling for accurate, repeatable results.
Welding & Assembly – We utilize MIG, TIG, and spot welding methods as needed, ensuring each enclosure is structurally sound and built to last. Enclosures can be shipped fully assembled, allowing for quick installation on-site.
Finishing – Powder coating, polishing, and anodizing are applied based on performance and appearance needs.
Inspection & Quality Control – Every enclosure undergoes rigorous testing and dimensional verification before shipment.
Our process supports everything from low-volume prototypes to high-volume production, and we can scale as your demand grows.
Quality Assurance
At DureX, quality is not a checkpoint—it’s built into every step of our process. Our skilled technicians operate within a culture of continuous improvement, backed by formal ISO-compliant quality systems.
We inspect every metal enclosure for:
Dimensional accuracy
Weld integrity
Surface finish
Structural fit and strength
Functionality of doors, hinges, plates, and access points
DureX can also fabricate enclosures to meet third-party certification requirements, such as UL or C-UL. Certification provides assurance of safety, quality, and regulatory compliance for customers in various industries.
In addition, we conduct in-house material testing and fit checks for components that must align with sensitive electronics or customer-supplied equipment.
As a local NJ manufacturer, we offer the responsiveness and accountability that offshore fabricators can’t match—giving our clients confidence in every enclosure we deliver.
Applications and Industries Served
DureX custom metal enclosures are engineered to perform in demanding environments across a broad spectrum of industries. Whether you’re protecting sensitive electronics, streamlining electrical distribution, or housing industrial components, we tailor every solution to meet real-world challenges. Finishes and features can be customized to meet the specific preferences and requirements of customers.
Common Applications:
Electrical control panels and NEMA-rated enclosures
Power supply and battery housings
Industrial automation and HVAC control boxes
Telecommunications and networking equipment enclosures
Medical device chassis and modular containment units
Outdoor weatherproof cabinets
Large, custom-engineered containers are also available for industrial and mobile applications, offering versatile mounting options and adaptability to various environments.
Industries We Serve:
Industrial automation
Telecommunications
Medical and diagnostic equipment
Transportation and automotive
Defense and aerospace
Building systems and HVAC
From local New Jersey-based startups to global OEMs, DureX helps manufacturers bring reliable, high-quality products to market—faster and with fewer complications.
Why Choose DureX for Metal Enclosure Fabrication?
As one of the most trusted names in custom sheet metal fabrication on the East Coast, DureX combines the capacity of a large-scale facility with the agility of a customer-first mindset.
Here’s what sets us apart:
Decades of Experience. Since 1946, we’ve delivered consistent, high-quality fabrication solutions for mission-critical applications.
True One-Stop Shop. Design, cutting, forming, welding, finishing, and assembly—all under one roof in Union, NJ.
Advanced Equipment, Skilled Technicians. From AMADA laser systems to automated press brakes, our technology is matched by expert operators.
DureX offers a range of hardware options, including handles, to meet your enclosure’s access and usability needs.
Rapid Turnaround, Local Support. No overseas delays. No language barriers. Just reliable communication and fast, accurate results.
Client Success Stories. We’ve helped clients reduce part costs by over 30%, accelerate time-to-market, and consolidate their vendor base.
At DureX, we don’t just build enclosures—we engineer confidence into every product.
Contact DureX today for a personalized consultation or project quote tailored to your custom sheet metal enclosure needs.
Frequently Asked Questions
What types of metal do you use for enclosures?
We work with a wide range of materials, including aluminum, stainless steel, powder-coated steel, and custom alloys. Each material is selected based on your performance, environmental, and cost requirements.
Can you fabricate enclosures to exact specifications?
Yes. Every custom metal enclosure we fabricate is built to your exact specifications using CAD design, CNC laser cutting, and precision forming technologies. We specialize in tight tolerances and application-specific designs.
Do you manufacture NEMA-rated enclosures?
Absolutely. We fabricate NEMA enclosures that meet a variety of protection ratings for indoor and outdoor use, including resistance to dust, water, and corrosion—ideal for harsh industrial environments.
What customization options are available?
We can integrate gland plates, hinged doors, locks, vents, access panels, and mounting features. Our team works with you to ensure the enclosure supports your specific equipment and functional needs.
What are your lead times?
Lead times vary by project complexity and volume, but thanks to our Union, NJ-based facility, we offer fast turnarounds. Prototypes or small batches can often be completed in just a few weeks.
Can you assist with enclosure design?
Yes. Our in-house engineering team provides design support from concept to final production. We use CAD software to help you optimize for performance, manufacturability, and cost.
What is the minimum order quantity?
We specialize in both low-volume production (including one-off prototypes) and high-volume runs. Whether you need one or 10,000 units, we can scale to meet your needs.
