Over a decade of heavy structural steel, industrial pipework, and plant erection
Green Ngoria has delivered heavy mechanical works contracts for more than ten years across East and Central Africa.
Our engineers bring extensive practical expertise in heavy industrial construction, bulk fuel terminal steelwork, power station mechanical systems, mining headframes, and process machinery installation.
Our mechanical capabilities have also supported complex building projects: including the design and structural delivery of the multi-storey lift shaft core at Hotel Amahoro in Burundi featuring a high-speed Schindler elevator installation.
- Industry Experience
- 10+ Years Delivery (Oil Terminals & Power Sector)
- Welding Standards
- ASME IX Certified (100% NDT on High-Pressure Lines)
- Mining Rigging
- Headframes & Mills (Shaft Hoisting & Heavy Steel)
- Lifting & Elevators
- Schindler Lift Delivery (Hotel Amahoro Lift Shaft Core)
Mechanical Engineering & Structural Erection — Technical Portfolio
Authentic high-resolution documentation from Green Ngoria operations, field sites, and technical delivery across East Africa. Click any photo to zoom in up to 2.5x with full pixel clarity.
Bulk Storage Steel Erection
Structural steel erection and framing at a bulk storage terminal.
Coded Site Welding
Site welding to procedure with ASME-qualified welders.
Industrial Pipe Fabrication
Industrial process pipework fabrication, manifolds, and installation.
Mining Headframe Assembly
Mining rig and shaft headframe erection for underground extraction.
Technical Scope & Certified Deliverables
Mechanical Engineering Scope
- Structural Steel Fabrication & ErectionBS 5950 / AISC 360
Heavy portal frames, crane runway beams, pipe bridges, and access stair towers.
- Process Piping & Spool FabricationASME B31.3 / B31.4
Carbon steel and stainless steel pipe spools for fuels, chemicals, and high-density slurries.
- Coded Welding & Nondestructive TestingASME IX / AWS D1.1
100% visual inspection backed by radiographic, ultrasonic, and dye penetrant testing.
Scope of Work — Official Company Profile
- Heavy structural steel fabrication, crane erection, and bolt-up assembly
- Specialized mechanical erection for oil depots, power plants, and mining sites
- Process pipework fabrication, spools, manifolds, and high-pressure lines
- Welding to WPS procedures with ASME Section IX certified welders
- Industrial machinery installation, laser alignment, and shutdown overhaul support
- Mining shaft headframe erection, winches, and hoisting gear assembly
Phase-by-Phase Execution Pathway
Shop Fabrication & Spool Detailing
Develop 3D isometric piping blueprints, fabricate spools in workshop, and perform NDT.
- Piping Isometrics
- Weld NDT Inspection Sheets
On-Site Heavy Rigging & Alignment
Erect structural frames, hoist heavy machinery onto foundations, and align shafts using dual-axis lasers.
- Crane Lift Plans
- Laser Alignment Logs
Hydrostatic Pressure & Torque Testing
Torque all structural bolts to specification and hydro-test piping to 1.5x design pressure.
- Bolt Torque Audit Sheet
- Hydrostatic Test Certificate
Pre-Commissioning & Cold Run
Lubricate bearings, check motor rotational directions, and conduct dry test runs.
- Cold Commissioning Dossier
- As-Built Mechanical Archive
Design Criteria & Technical Parameters
| Parameter / Specification | Standard Design Criteria | Application & Engineering Notes |
|---|---|---|
| Structural Steel Grade | S275JR / S355JR (EN 10025) | High yield strength certified structural steel |
| Shaft Laser Alignment Tolerance | < 0.05 mm radial / axial runout | Ensures zero vibration on heavy rotary equipment |
| Welding NDT Acceptance | ASME B31.3 Severe Cyclic Conditions criteria | Zero crack or lack-of-fusion defects allowed |
Standing Quality & EHS Commitments
- Health, Safety & Environment
- Environment, Health and Safety is given absolute priority in all projects the company undertakes, adhering strictly to NEMA EMCA Cap 387, OSHA 2007, and environmental mining regulations.
- Independent Quality Control
- Recognised quality-control institutions and accredited materials consultants are contracted to perform batch testing that verifies high product quality on every site.
- Regional Delivery Footprint
- Green Ngoria operates across Kenya, Tanzania, Uganda, Rwanda, Burundi, with corporate headquarters at Tatu City, Kijani Ridge, Nairobi.
Frequently Answered Questions
Does Green Ngoria maintain certified mobile crane operators and riggers?
Yes. All lifting operations are planned by certified rigging engineers with written lift plans and calibrated rigging tackle.
- Gold Mining & Mineral ExtractionMining Operations
- Gemstone Mining & Mineral PropertiesMining Operations
- Building Works & InfrastructureConstruction
- Renovation, Restoration & PaintingConstruction
- Road Construction & Civil InfrastructureCivil Works
- Water Supply, Reticulation & Civil StorageCivil Works
- Electrical Engineering & InstrumentationEngineering
- Energy, Petroleum & Depot InfrastructureImportation & Supply
- Timber Importation & Heavy Wood ProductsImportation & Supply
- General Supplies & Corporate ProcurementImportation & Supply
Discuss Mechanical Scope
Reach our customer care on +254 704 160 431 or email customercare@greenngoria.com — or send the details through the request for quotation form and our engineering team will respond with a full proposal.
Customer care & enquiries
Director lines & emails: Leadership Profiles →
Tatu City, Kijani Ridge, Nairobi, Kenya