Industrial Heat Exchanger Fabrication
Engineered Heat Transfer Components Built to Perform
Openex Metal Fabrication manufactures custom heat exchanger assemblies for demanding industrial applications, including petrochemical, power generation, marine, and heavy processing environments. We build shell-and-tube exchangers, plate-fin units, and pressure-rated vessels to exact customer designs — integrating precision machining, certified welding, and rigorous quality control.
From large-scale fabricated headers and tube sheets to complete skid-mounted exchangers, we offer full-service production capabilities in-house. With certified welding procedures (ASME, AWS), heavy-duty rolling and forming equipment, and state-of-the-art CNC machining centers, Openex is your one-stop partner for heat exchanger fabrication at scale.
Custom Fabricated Components
- Shell & Tube Exchangers: Pressure-rated designs with seamless integration of tube bundles and shell-side features
- Tube Sheets & Baffles: CNC-drilled to ±0.05 mm with leak-tested welds
- Heads, Nozzles & Channels: Forged or fabricated with flanged or integrally welded connections
- Plates & Panels: Flat and formed plates for air-cooled and plate-type exchangers
- Complete Assemblies: Skid-mounted and pre-tested exchanger modules for direct system installation
Fabrication & Engineering Capabilities
- Tube Sheet Drilling: CNC precision with ±0.05 mm tolerance
- Welding: Manual and orbital welding for shell, tube, and baffle joints (ASME-certified)
- Rolling & Forming: Up to 210 mm plate thickness and 4250 mm width
- Machining: Horizontal and vertical boring, facing, and profiling
- Cutting: Laser, plasma, waterjet, and flame methods — thick plate and contour components
- Testing: RT, UT, hydrostatic, pneumatic, and helium leak detection
Materials We Work With
- Carbon Steel (A106, Q235B, Q345R)
- Stainless Steel (304, 316L, 321, Duplex)
- Nickel Alloys (Inconel, Hastelloy, Monel)
- Copper-Nickel (90/10, 70/30)
- Aluminum, Titanium (upon request)
Certifications & Quality Assurance
- ISO 9001, CE, ASME U Stamp, API, Lloyd’s Register certified
- ZEISS MMZ G CMM, Leica AT901 laser tracker for dimensional verification
- PMI, pressure test, and NDT reports included per project spec
- Full material traceability and fabrication documentation
Why Openex?
- Decades of experience in complex exchanger fabrication
- In-house integration: Cutting, forming, welding, machining, coating, testing
- Built for scale: Components and systems up to 250 tons in weight
- Responsive to EPCs, OEMs, and plant operators worldwide
Request a Quote
Contact Openex to discuss your next heat exchanger fabrication project. We bring heavy fabrication precision to every job.
📧 Email: [email protected]
📞 Phone: +86 186 5928 0806
Our Full-Service Metal Fabrication: metal cutting and sheering, metal forming, bending, and rolling, welding, CNC machining, sheet metal assembly, and quality inspection
Machining Services: Multi-Axis Machining, 5-Axis Machining, CNC Milling | Vertical and Horizontal, CNC Turning | Vertical and Horizontal, CNC Engineering, CMM Inspection
Material Types: castings, forgings, fabricated weldments, billets, bar stock, and plate
Metal Materials we worked: Stainless steel, Carbon Steel, aluminum, brass, bronze, chromium, copper, Monel, nickel, titanium, zinc, and many other superalloys.
Certifications: ISO 9001, CE EN 1090-1, ISO 3834, ABS, AWS, API, ASME, DNV.GL.
Industries Served: Mining, Construction, Oil & Gas, Power Generation, Marine, Automotive, Renewable Energy, Pulp & Paper, Bridge, Aerospace, Defense, Printing and Dyeing, Machinery, etc.