INDUSTRY SOLUTIONS · EN 1090 · AWS D1.1 · AISC
Industry Solutions·Custom Steel Fabrication FROM STEEL MILL TO FINISHED STRUCTURE
Five downstream sectors, one integrated supply chain. XJY Structure engineers fabrication packages for industrial plants, commercial buildings, bridges, energy facilities and logistics parks -- with in‑house steel production, certified welding procedures and full documentation delivered per shipment.
- Sectors
- 5
- Capacity
- 36,000t
- Markets
- 30+
Downstream Sectors
Five industries one fabrication system
Each sector carries its own tolerance regime, connection logic and coating requirement. Select an entry below to jump to the matching fabrication scope.
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01 / SECTOR
Industrial Plants & Warehouses
Portal frames, crane runway beams, purlins, bracing systems and mezzanine platforms for factories and distribution halls.
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02 / SECTOR
Commercial Buildings
Exposed architectural steel, composite floor beams, atrium columns, canopy frames and stair assemblies with visual‑grade finish.
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03 / SECTOR
Bridge Engineering
Plate girders, box sections, orthotropic deck panels, pedestrian truss spans and bearing assemblies under EXC3 control.
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04 / SECTOR
Energy Facilities
Pipe racks, solar mounting frames, boiler support steel, transmission masts and offshore‑grade coated structures.
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05 / SECTOR
Logistics Parks
Multi‑bay frames, dock canopies, racking support steel and repeat‑module packages optimised for container loading.
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CUSTOM / OTHER
Not listed? Send drawings
Stadiums, agricultural buildings, mining structures, port equipment frames -- we quote against any shop drawing set or BOM.
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Fabrication Scope By Sector
Tailored processing plans for each application
01 · Industrial Plants & Warehouses
High‑volume portal frames with crane‑ready tolerances
Repetitive frame production runs on nested cutting lists to minimise plate waste. Crane runway girders are welded with SAW on automated lines, then straightened and checked for camber and web straightness before blasting.
- Components: welded H columns, tapered rafters, crane beams, purlins, wind bracing, mezzanine grids
- Process: CNC nesting → flame/plasma cut → SAW assembly welding → straightening → Sa 2.5 blasting → 2‑coat epoxy
- Control: EN 1090 EXC2, dimensional report per frame line, bolt‑hole trial assembly
LEAD TIME 25-40 DAYS · 200-3,000 t PACKAGES
02 · Commercial Buildings
Architecturally exposed steel with visual‑grade welds
AESS work demands seam continuity, ground‑flush transitions and consistent surface texture. We separate AESS batches into dedicated bays with restricted handling and protective packing to preserve finish through shipment.
- Components: tube columns, composite floor beams, canopy frames, feature trusses, stairs & balustrades
- Process: laser/plasma profiling → tube coping → MIG welding → weld dressing → primer + PU topcoat / hot‑dip galvanising
- Control: AESS category agreed pre‑production, DFT logs, mock‑up approval before batch release
AESS 1-4 · RAL COLOUR MATCHING AVAILABLE
03 · Bridge Engineering
Heavy plate girders under EXC3 weld discipline
Bridge work is executed with qualified WPS/PQR per joint type, 100% UT on full‑penetration butt welds and trial assembly of adjacent segments in the shop to confirm splice geometry before dispatch.
- Components: I‑girders, box girders, orthotropic deck panels, cross beams, bearing plates, pedestrian truss spans
- Process: plate edge milling → sub‑assembly → SAW multi‑pass → stress relief → NDT → trial assembly → 3‑coat system
- Control: EN 1090 EXC3, UT/MT/VT reports, MTC 3.1 traceability per plate heat number
SEGMENT LENGTH UP TO 18 m · THIRD‑PARTY WITNESS WELCOME
04 · Energy Facilities
Corrosion‑engineered structures for harsh service
Coastal, desert and chemical environments drive the specification. We match coating systems to ISO 12944 corrosivity class, or supply hot‑dip galvanised assemblies with venting holes designed at drawing stage.
- Components: pipe racks, boiler support steel, solar tracker frames, transmission masts, access platforms & cages
- Process: CNC drilling lines → robotic/MAG welding → galvanising or C5‑M coating → bolt kit matching → module bundling
- Control: ISO 12944 C4/C5, galvanising thickness certificates, torque‑check records for pre‑assembled units
HDG TO ISO 1461 · C5‑M MARINE SYSTEMS
05 · Logistics Parks
Modular repeat packages built for container efficiency
Large logistics campuses repeat the same bay hundreds of times. We fix jigs once, run continuous batches, and plan packing so each container ships a complete erection zone -- reducing site sorting time and demurrage risk.
- Components: multi‑bay frames, dock levellers steel, canopy trusses, racking support beams, roof bracing sets
- Process: jig‑based batch assembly → automated welding → shop primer → zone‑based marking → container load planning
- Control: piece‑mark barcode list, packing list per container, photo record before sealing
ZONE‑BASED SHIPPING · ERECTION‑SEQUENCE PACKING
Components & Processes
What we make and how we make it
Switch between component families, processing capability and quality documentation to review the full technical scope.
Welded Sections
Built‑up H / I sections, tapered rafters, box columns, crane girders with web depth up to 2,000 mm.
Trusses & Lattices
Tubular and angle trusses, space frame nodes, roof lattice girders, pedestrian span modules.
Plate Work
Base plates, gusset and splice plates, stiffeners, embedded plates, bearing assemblies.
Access Steel
Platforms, grating frames, stair stringers, cat ladders with safety cages, handrail systems.
Secondary Steel
C/Z purlins, girts, sag rods, tie bars, bracing rods and turnbuckle assemblies.
Tubular Products
In‑house SHS/RHS/CHS from our own mill -- 2,800+ specifications, cut and coped to drawing.
Project Evidence
Real workshops real client audits
Buyers from EU, Middle East, Southeast Asia and Africa visit our plant, witness production and inspect goods before shipment. Below is a record of that process.
Why Contractors Choose XJY
One source one quality system one accountable partner
Vertical Integration
Own steel mill with 3 lines and 2,800+ specifications feeding the fabrication shop directly -- stable cost, stable lead time.
MILL → SHOP → CONTAINER
Certified Systems
EN 1090 EXC3, AWS D1.1 welder qualification, ISO 9001 QMS and CE marking with factory production control.
EN 1090 · AWS · ISO 9001 · CE
Engineering Support
Shop drawing review in Tekla/DWG, material optimisation, splice planning and lifting‑segment advice before cutting starts.
TEKLA · DWG · RFI RESPONSE 48H
Export Logistics
Erection‑sequence packing, barcode piece marks, full export documentation and delivery across 30+ markets.
FOB / CIF / DAP TERMS
- Annual Capacity
- 36,000t
- Quotation Turnaround
- 48h
- Raw Material Specs
- 2,800+
- Export Markets
- 30+
Custom Solution Enquiry
Send drawings or BOM -- receive a fabrication plan in 48 hours
Tell us the sector, tonnage and applicable standard. We return a formal quotation, process proposal, documentation list and lead‑time schedule. All drawings are handled under NDA.
- 01 Submit scopeDrawings, BOM, standard, destination port.
- 02 Technical reviewEngineering check, material optimisation, RFI list.
- 03 Quotation & planPrice, process route, QA deliverables, delivery schedule.
- 04 Production & inspectionProgress photos, witness points, pre‑shipment inspection.
- EN 1090 EXC3
- AWS D1.1 WELDER QUAL.
- ISO 9001 QMS
- CE MARK FPC