Heavy Fabrication Service

Onyx Engineering delivers comprehensive heavy fabrication solutions that combine precision, durability, and safety. From project scoping and design for manufacturability to cutting, welding, machining, assembly, and in-field integration, our integrated approach ensures robust components, enhanced uptime, and on-schedule delivery. Our fabrication facilities operate under ISO-aligned quality management and OH&S programs, with traceable material controls and rigorous inspection regimes from fabrication through final assembly and commissioning.

Precision Meets Power in Heavy Fabrication

Onyx Engineering provides end-to-end heavy fabrication—from design for manufacturability and cutting to welding, machining, and assembly. Our robust QA/QC, safety culture, and ISO-aligned systems ensure high-strength components and reliable performance in demanding environments.

• Sectors served: mining, oil and gas, heavy industrial plants, and infrastructure equipment manufacturing
• Core methods: CNC cutting, welding (coded procedures), metal forming, machining, assembly, and surface finishing
• Project lifecycle: concept design → detailed engineering → fabrication planning → production → inspection and testing → assembly → commissioning → lifecycle support
• Safety and compliance: ISO 9001 QMS and ISO 45001 OH&S, welding procedure specifications (WPS), material traceability, and QA inspections
• Value for clients: improved component quality, reduced lead times, enhanced equipment reliability, and clear documentation for maintenance

• Pre-fabrication planning
  • Define tolerances, material specs, and welding/cutting standards; establish QA/QC plan
  • Review design for manufacturability; plan inspection points and nondestructive testing (NDT) where needed
  • Ensure permits, lifting plans, and crane/rigging requirements are in place
• Fabrication execution
  • Monitor heat treatment, surface preparation, and coating/finish specs
  • Track material traceability, welding logs, and inspection results
• Assembly & integration
  • Verify fit-up, alignment, and interface with other systems; perform functional tests
• Handover & documentation
  • Provide as-built drawings, material certifications, and maintenance manuals

• Heavy Fabrication Services | Precision Industrial Fabrication by Onyx Engineering
• Onyx Engineering delivers end-to-end heavy fabrication—from machining and welding to assembly and commissioning. ISO-aligned quality and safety ensure high-strength components and reliable performance.