Custom Fabrication of Engineering Machinery Components
Heavy-Duty Structural Fabrication for Construction & Mobile Equipment
Openex is a trusted manufacturer of precision-fabricated components for engineering machinery. We produce robust, high-performance structural parts including booms, arms, buckets, frames, dump bodies, racks, and custom welded assemblies for excavators, cranes, mining trucks, and other heavy equipment.
Our 160,000 m² advanced fabrication facility integrates laser/plasma cutting, CNC bending, robotic welding, large-part machining, and high-capacity painting lines. With the ability to process medium to ultra-heavy steel components, we supply ready-to-assemble structures for OEMs and global equipment manufacturers.
Components We Fabricate
- Excavator Booms & Arms
- Loader and Crane Buckets
- Main Frames and Underframes
- Truck Dump Bodies
- Battery Racks, Mounting Brackets
- Counterweights and Wear Structures
- Lift Arms, Swing Frames, Chassis Structures
Industries & Equipment Served
- Construction Machinery (Excavators, Cranes, Loaders)
- Mining Trucks & Earthmoving Equipment
- Heavy-Duty Trailers & Transport Vehicles
- Hydraulic Equipment & Attachments
- Industrial Lifting & Material Handling Machines
- Energy, Port Machinery, and Infrastructure Equipment
Fabrication Capabilities
- Laser, plasma, and flame cutting for thick and hardened plates
- Plate bending up to 3,000 tons and 15 meters
- MIG, TIG, submerged arc, and robotic welding
- CNC machining for precision fit-up and bore tolerances
- Blasting, coating, and paint systems (primer + finish coats)
- Sub-assembly, kitting, and load-ready packing
Materials We Work With
- Carbon Steel (Q235, Q345, ASTM A36/A572)
- High Strength Steel (HARDOX, DOMEX, Strenx)
- Abrasion-Resistant Plate (AR400/AR500)
- Alloy Steels (42CrMo, 20MnTiB)
- Stainless Steels and Aluminum Alloys (on request)
Quality Assurance
- Certified welding procedures (ISO, AWS)
- Non-destructive testing: UT, MT, PT
- Dimensional inspection and CMM verification
- Load testing and weld seam evaluation (upon request)
- Full traceability of materials and production records
Why Choose Openex?
- One-Stop Manufacturing: Cutting, welding, machining, coating & assembly
- Large Part Handling: Workpieces up to 250 tons and 50 meters in length
- Flexible Production: Prototypes, low-volume, or mass production supported
- Global Delivery: Exported to Asia, Europe, Middle East, and Americas
Contact Us
Partner with Openex for high-quality structural components built to outperform in harsh operating environments. Contact us to discuss your fabrication needs.
📧 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.