Custom Welded Metal Assemblies
At DureX Inc., we specialize in delivering precision welded metal assemblies and custom welding services that meet the highest standards of quality and durability. From MIG welding (metal inert gas) to TIG welding (tungsten inert gas) and robotic welding applications, our experienced team combines decades of expertise with advanced equipment to produce strong and clean welds for projects of every scale.
Operating from our 120,000 sq. ft. manufacturing facility in Union, New Jersey, we provide sheet metal welding services to customers throughout the Tri-State area and across the U.S. By choosing DureX, you gain a local manufacturing partner with over 75 years of proven success in metal fabrication — eliminating the risks of overseas production delays, costly errors, and miscommunication.
Whether you need a one-off prototype, small-batch production, or high-volume welded assemblies, we are committed to precision, efficiency, and customer satisfaction at every step of the process. With American Welding Society (AWS) compliance and a focus on quality control, DureX ensures your welded components are built to perform reliably in demanding environments.
Our Welded Metal Assemblies Services
Welded Metal Assemblies
At DureX, we provide custom welded metal assemblies that deliver the strength, durability, and precision required for demanding applications. From structural welding of frames and supports to intricate welded joints on brackets and enclosures, every component is manufactured to exact specifications. The structure of each welded assembly is critical, as our welding process ensures the creation of complex, durable, and highly functional structures tailored to your needs.
Our team works with a wide range of materials including stainless steel, mild steel, and aluminum, ensuring the right balance of strength and cost-effectiveness for your project. By leveraging both manual welding expertise and robotic welding capabilities, we deliver welded assemblies that maintain consistency, accuracy, and performance — whether you need one prototype or thousands of finished units. We utilize a variety of welding processes, such as MIG and TIG welding, to guarantee the technical integrity and optimal performance of every welded metal assembly.
Sheet Metal Welding Services
DureX offers full-service sheet metal welding to meet the needs of industries across New Jersey and beyond. Our capabilities include:
MIG Welding (Gas Metal Arc Welding) – fast, versatile, ideal for large-scale assemblies.
TIG Welding (Gas Tungsten Arc Welding) – precise, clean welds, perfect for thin materials and critical joints.
Resistance Spot Welding – efficient for joining sheet metals with minimal distortion.
Manual & Robotic Welding – flexible options depending on project volume and complexity.
These welding techniques represent different joining processes, allowing us to tailor the joining process to specific project requirements.
These processes allow us to handle projects ranging from thin-gauge sheet metal components to heavy-duty welded structures. Our sheet metal welding services are trusted across HVAC, automotive, construction, electronics, and industrial sectors, delivering clean welds, tight tolerances, and cost-effective production.
Robotic Welding Capabilities
For high-volume and repeatable projects, our robotic welding systems ensure unmatched precision and efficiency. Robotic welding allows us to:
Complete complex welds faster without sacrificing quality.
Perform stitch welding (intermittent welds) to reduce heat distortion on long seams.
Deliver consistent, same-plane welds across hundreds or thousands of assemblies.
Our Union, NJ facility is equipped with advanced welding tables, fixtures, and CNC-enabled automation, enabling us to meet tight production deadlines while ensuring structural integrity and superior weld quality. Robotic welding enables a seamless transition from design to production, ensuring efficient and cohesive assembly processes. Robotic welding is especially valuable for industries requiring scalability, such as aerospace, industrial equipment, and OEM manufacturing.
MIG & TIG Welding Applications
As two of the most widely used welding techniques, MIG and TIG welding are core to our operations:
MIG Welding (Metal Inert Gas): Uses a consumable electrode and shielding gas to create strong joints in stainless steel, mild steel, and aluminum. Known for its speed and cost-effectiveness, MIG welding is ideal for large-scale assemblies and varied part sizes.
TIG Welding (Tungsten Inert Gas): Utilizes a non-consumable tungsten electrode and inert gas shielding for precise, high-quality welds. TIG welding is the process of choice for clean welds on thin materials, where strength and visual appearance are equally important.
At DureX, our skilled welders and inspectors back these processes with ultrasonic testing and quality checks, ensuring every weld meets strict industry standards and performs reliably in its final application.
Welding Capabilities and Processes
At DureX Inc., we combine decades of welding expertise with the latest equipment to ensure every assembly meets the highest standards of precision, strength, and durability. Our Union, NJ facility is equipped with advanced welding stations, automated tables, and custom fixtures that allow us to produce assemblies with consistent accuracy and efficiency.
Material Considerations
Every weld begins with a deep understanding of the material. We routinely work with:
Stainless steel – corrosion resistance, ideal for enclosures and structural parts.
Mild steel – versatile and cost-effective for industrial applications.
Aluminum – lightweight and durable, requiring special handling to prevent distortion.
Factors such as material thickness, shielding gas selection, and weld area preparation are carefully controlled to achieve clean welds and reliable joints across all projects.
Welding Processes
Our team is experienced in a wide range of welding techniques, including:
MIG Welding (Gas Metal Arc) – high-speed, efficient welds using consumable electrodes.
TIG Welding (Gas Tungsten Arc) – precise welds using a non-consumable tungsten electrode.
Resistance Welding & Spot Welding – effective for sheet metal assemblies and mass production.
Robotic Welding – for repeatable, high-volume applications.
Manual Welding – for custom, complex, or low-volume jobs where flexibility is key.
Inspection & Testing
To ensure quality, we perform in-house weld inspections and offer advanced testing methods, including ultrasonic testing for weld integrity. These quality checks verify that every weld meets or exceeds American Welding Society (AWS) standards for strength, performance, and compliance.
Final Assembly & Turnkey Support
Beyond the weld itself, DureX provides final assembly services, integrating welded components into complete assemblies. Our one-stop-shop capabilities — from cutting and forming to welding, machining, finishing, and packaging — allow our customers to consolidate suppliers, reduce costs, and improve efficiency.
With local production in Union, NJ, you gain faster turnaround, direct collaboration with our engineers, and confidence that your assemblies will meet strict industry requirements.
Why Choose DureX?
For more than 75 years, DureX Inc. has been a trusted partner for OEMs, manufacturers, and contractors who demand precision welding and fabricated assemblies that perform in the real world. Located in Union, New Jersey, our company blends traditional craftsmanship with advanced technology to deliver results that are both cost-effective and reliable.
Here’s why businesses across the Tri-State area and beyond continue to choose us for their welding services:
Proven Experience & Expertise
With decades of experience in MIG, TIG, resistance, and robotic welding, our team knows how to handle projects of every size and complexity.One-Stop Manufacturing Partner
From raw material sourcing and sheet metal welding to machining, finishing, and final assembly, we offer complete, turnkey support under one roof — eliminating the need for multiple suppliers.Scalable Solutions
Whether you need a prototype, low-volume run, or high-volume welded assemblies, we can seamlessly scale production to meet your requirements without compromising on quality.Quality and Compliance
All of our welded assemblies are manufactured to meet strict American Welding Society (AWS) standards. Combined with in-house inspection and ultrasonic testing, you can be confident every weld is built to last.Local Advantage
By working with a New Jersey-based manufacturer, you gain faster turnaround times, direct communication, and reduced risk compared to overseas suppliers. We’re close enough for face-to-face collaboration while experienced enough to serve global markets.
At DureX, we don’t just weld parts — we build partnerships based on precision, trust, and performance.
Industries Served
DureX’s welded metal assemblies and sheet metal welding services support a wide range of industries where precision, strength, and compliance are critical. From everyday consumer products to specialized aerospace components, our welded assemblies are trusted across diverse applications.
HVAC & Climate Control
We manufacture chassis, enclosures, and welded frames for heating, cooling, and ventilation systems. Our partnership with OEMs in the HVAC sector — right here in New Jersey and across the Tri-State area — ensures reliable parts that meet strict performance and safety requirements.
Automotive & Transportation
Our MIG and TIG welding capabilities produce durable brackets, structural components, and welded joints used in commercial vehicles, passenger cars, and heavy equipment. These welded assemblies are designed for long-term reliability under demanding conditions.
Electronics & Electrical Equipment
DureX produces custom welded enclosures and housings that protect sensitive electrical systems. Our precision welding ensures components meet both functional and regulatory standards.
Construction & Industrial Equipment
From frames and supports to large welded structures, we supply assemblies that stand up to heavy-duty use. Our robotic welding capabilities ensure repeatability and strength for high-volume industrial parts.
Aerospace & Defense
When precision and compliance matter most, our AWS-certified welders and quality-control processes deliver assemblies that meet the strictest standards. TIG welding and ultrasonic testing ensure clean welds and uncompromising integrity.
Food Service & Consumer Products
We fabricate welded components for commercial kitchens, food service equipment, and consumer goods — where cleanliness, durability, and appearance are equally important.
No matter the industry, our Union, NJ facility provides local companies with fast turnaround, while our scale allows us to serve national and global manufacturers.
Case Studies & Project Highlights
HVAC Knock-Down Assemblies
When Simon-Aire, a manufacturer of packaged HVAC systems in the Tri-State area, needed to reduce warehouse storage costs, they turned to DureX. We engineered a knock-down welded box design that could be shipped and stored flat, then assembled when needed. The result? 5x more units stored in the same space, cutting storage expenses and improving supply chain efficiency — while maintaining the strength and precision of welded assemblies.
Scaling from Fabrication to High-Volume Welding
A New Jersey OEM was paying $22 per unit for a welded power supply chassis. By transitioning from fabrication to hard-tooling-supported welding processes, DureX reduced the cost to $14 per unit. The upfront tooling was recouped in just 3.5 months, saving the client over $24,000 monthly as production scaled — proof of how our flexible manufacturing process helps clients grow cost-effectively.
Collaborative Engineering Support
Many of our clients rely on DureX not just as a supplier, but as a welding and fabrication partner. Our engineers work side-by-side with customers’ design teams to optimize welded assemblies for strength, cost efficiency, and compliance with AWS standards. From welded joints and spot welding on sheet metal components to robotic TIG welding for complex assemblies, our collaboration ensures projects are built for performance from the prototype stage through final production.
Frequently Asked Questions
What’s the difference between MIG and TIG welding?
MIG welding (Metal Inert Gas) uses a consumable electrode and is known for its speed and versatility, making it ideal for larger assemblies and general fabrication. TIG welding (Tungsten Inert Gas) uses a non-consumable tungsten electrode, producing cleaner, more precise welds — often used for thin materials or critical applications where appearance and strength are equally important.
What metals can DureX weld?
We routinely work with stainless steel, mild steel, and aluminum, but can also source specialty metals upon request. Our welding processes and material handling expertise ensure that each metal type is welded for maximum strength and durability.
Do you handle prototypes as well as full production?
Yes. Our Union, NJ facility is equipped to manage everything from one-off prototypes and short runs to high-volume welded assemblies. This scalability allows our customers to launch quickly and grow without switching suppliers.
How do you ensure weld quality?
We adhere to American Welding Society (AWS) standards and use ultrasonic testing and in-house inspections to verify weld integrity. Our processes ensure that every welded joint meets strict quality, performance, and safety requirements.