Welding & Fabrication Services (WFS)
A PART OF GREEN SHIFT GROUP
One-Stop Welding & Fabrication Solution
Green Shift Group (GSG) provides marine engineering, welding, fabrication, and repair partner supporting shipowners, managers, shipyards, and offshore operators worldwide.
Through our network of certified welders, fabrication partners, and experienced marine personnel, we deliver technically compliant repair and fabrication solutions for maritime, offshore, and industrial applications.
​
Our project execution is based on proven engineering principles, strict quality control, and compliance with applicable ISO, EN, IACS, and Classification Society requirements. We focus on minimizing vessel downtime through efficient planning, prefabrication, rapid mobilization, and controlled onboard execution.
Whether supporting emergency repairs, scrubber renewals, piping modifications, steel renewals, or complete fabrication projects, GSG provides a single point of contact from initial assessment through completion and documentation.
Engineering & Documentation
GSG provides complete technical and quality documentation packages to ensure full traceability and compliance throughout the project lifecycle.
​
Our documentation capabilities include:
-
​Fabrication and assembly drawings
-
Piping layouts and isometric drawings
-
Material specifications and certificates
-
Welding documentation (WPS, WPQR, Welder Qualifications)
-
Inspection and Test Plans (ITP)
-
NDT reports and inspection records
-
Class and client documentation packages
-
Repair procedures and work instructions
-
Final project dossiers and completion reports
Fabrication & Workshop Capabilities
Through selected fabrication partners and approved workshops, GSG supports fabrication, prefabrication, and assembly of components for marine and industrial applications.
Capabilities include:
​
-
Structural steel fabrication and assembly
-
Pipe fabrication and spool production
-
CNC plasma and laser cutting
-
Plate rolling and bending
-
Stainless steel fabrication
-
High-alloy fabrication and welding
-
Aluminium fabrication and repair
-
Mechanical machining support
-
Surface preparation and coating coordination
-
Prefabrication for rapid onboard installation
Materials & Welding Competence
GSG supports fabrication and repair of a wide range of marine and industrial materials including:
Certified Welding Processes
All welding activities are performed by qualified personnel in accordance with approved welding procedures and project-specific requirements.
​
Supported welding processes include:
​
-
111 - Shielded Metal Arc Welding (MMA/SMAW)
-
135 - MAG Welding
-
136 - Flux-Cored Arc Welding (FCAW)
-
138 - Metal-Cored Arc Welding (MCAW)
-
141 - TIG/GTAW Welding
-
MIG Welding for Aluminium Applications
-
PE/PPE Plastic Pipe Welding
Quality, Traceability & Compliance
All fabrication and welding activities are performed in accordance with approved WPS and WPQR documentation with full material traceability and certification.
Projects can be executed in compliance with:
​
-
ISO requirements
-
EN standards
-
EN 1090 fabrication requirements
-
IACS Unified Requirements
-
DNV, Lloyd’s Register, ABS, BV, RINA and ClassNK requirements
-
Client-specific specifications and procedures
GSG works closely with vessel operators, superintendents, shipyards, classification societies, and insurers to ensure repairs and fabrication activities are completed safely, efficiently, and in full compliance with applicable requirements.
Marine Repair & Scrubber Welding Services
GSG specializes in onboard and shipyard welding repairs including:
​
-
Scrubber tower repairs and steel renewals
-
Corrosion and erosion repairs
-
Crack repairs and structural renewals
-
Stainless steel and high-alloy welding
-
Piping repairs and modifications
-
Tank and pressure boundary repairs
-
Exhaust system repairs
-
Engine room steelwork and modifications
-
Emergency breakdown repairs
-
Drydock and voyage repair support