Modular Steel Building
Modular Steel Building Systems
Engineered Prefabricated Steel Structures for Fast-Track Global Industrial Projects
Wanxiang Modular Steel Buildings are fully engineered prefabricated steel structure systems designed for industrial, commercial, logistics, agricultural, and EPC infrastructure projects worldwide.
Our system integrates the complete engineering lifecycle:
- Structural design & calculation
- Factory precision fabrication
- Modular transportation optimization
- Fast bolt-connected installation system
This solution is widely adopted in EPC contractors, industrial developers, logistics operators, and government infrastructure projects.
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100% In-House Integration
Unified structural engineering and fabrication under one roof-zero outsourcing, total quality control.
Site-Specific Load Optimization
Advanced calculation of dead, live, wind, snow, and seismic loads based precisely on your project's geographic coordinates.
Pre-Engineered Bolt Connections
Designed for 100% weld-free site assembly, drastically lowering on-site safety risks and labor skill requirements.
High-Precision CNC Fabrication
Factory tolerances controlled strictly within ±2mm, eliminating costly field modifications.
Proven Multi-Climate Resilience
Engineered and verified performance in extreme environments, from high-salinity coastal zones to heavy snow and high-seismic regions.
Technical Specifications Summary
|
Technical Parameter |
Specification Standard |
|
Primary Steel Grades |
Q355B, Q420B, ASTM A572 Gr.50, EN10025 S355JR |
|
Clear Span Capabilities |
10m – 80m+ (Column-free layout available) |
|
Eave Height Limits |
4m – 20m+ (Multi-story configurations supported) |
|
Corrosion Protection |
Hot-Dip Galvanizing (Z≥275g/m2), Epoxy Zinc-Rich Primers, Polyurethane Topcoats |
|
Connection Hardware |
High-Strength Structural Bolts Grade 8.8 / 10.9 (ASTM A325 / A490) |
|
Design Parameters |
Wind speed up to 300 km/h, Seismic Zones up to Category D/E, Snow loads up to 4.5 kN/m² |
Engineering Value Proposition
Fast EPC Project Delivery System
Timeline Compressed by 30%–60%: Parallel engineering workflow allows foundation work on-site while steel fabrication occurs simultaneously in the factory.
Zero-Delay Schedule Management: Prefabricated components arrive sequence-coded and ready for immediate erection, minimizing weather-related risks.
Structural Safety Engineering
Premium Material Grades: Manufactured strictly with high-strength Q355B / Q420B or international equivalents (ASTM A572 Gr.50, EN10025 S355JR).
Customized Environmental Adaptation: Every structure is custom-engineered to withstand local extreme wind loads, heavy snow loads, and high seismic zones.
Extended Asset Lifespan: Designed for a 30–50 year operational service life under severe industrial or coastal environments.
Total Cost Engineering Optimization
Weight & Material Optimization: Advanced stress analysis reduces unnecessary steel weight, lowering raw material costs without compromising safety.
Foundation Cost Savings: Lighter structural dead weight results in smaller, optimized concrete foundation requirements.
Minimized On-Site Overhead: Fast assembly cuts local labor hours, heavy crane rentals, and site management overhead.
Global EPC Project References
Span: 42m clear span structure
Area: 28,000㎡
Challenge: High temperature + fast delivery requirement
Solution: Modular pre-engineered steel system with optimized thermal expansion design
Structure: Multi-bay steel frame system
Requirement: Heavy crane load support
Solution: Reinforced H-section steel + optimized load distribution system
Requirement: Low temperature insulation system
Solution: Rock wool sandwich panel + thermal bridge control design
Requirement: Large span + ventilation
Solution: Open-span modular steel structure with ventilation roof system
Requirement: High production efficiency layout
Solution: Workflow-optimized steel structure design system
Structural System Composition
Main Steel Frame System
H-section steel columns
Welded or hot-rolled steel beams
Secondary C/Z purlin system
Roof Engineering System
Single / double slope / multi-span design
Insulated roof panels (PU / Rock Wool / EPS)
Skylight & ventilation integration system
Wall Engineering System
Thermal insulation sandwich panels
Steel corrugated sheet systems
Fire-resistant wall solutions
Connection System
High-strength bolt system (Grade 8.8 / 10.9)
Factory pre-assembled modular components
Materials & Corrosion Protection System
Structural Steel Grades
Q235B – Standard structural use
Q355B – Industrial heavy-load applications
Q420 / Q460 – High-performance engineering structures
Anti-Corrosion Systems
Hot-dip galvanizing (long service life protection)
Epoxy primer + polyurethane coating system
Optional fire-resistant coating systems
Quality Assurance & Testing Protocol
Every shipment is accompanied by a transparent quality dossier:
Raw Material Integrity
100% traceability with original Mill Test Certificates (MTC).
Nondestructive Testing (NDT)
Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) on all critical penetration welds.
Precision Inspection
Digital dimensional accuracy checks matching the Tekla BIM model.
Coating Verification
Dry Film Thickness (DFT) testing and cross-hatch adhesion testing.
Installation & Execution System
Modular Installation System
Bolt-connected structural system
Minimal on-site welding required
Crane-assisted assembly process
Engineering Support
Installation manuals provided
Remote technical guidance (video + drawings)
Optional on-site engineering supervision
Project Timeline
Small warehouse: 7–15 days installation
Medium industrial plant: 15–30 days
Large EPC project: customized execution schedule
Export Packaging & Delivery
- Steel components are packed by type and labeled clearly
- Columns, beams, and purlins are bundled for container loading
- Sandwich panels are protected with waterproof film
- Bolts and accessories are packed in wooden cases
- All parts are marked according to installation drawings
- 20ft / 40HQ container loading optimization available
- Anti-rust and transport protection before shipment
Certificates
FAQ
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We are one of the most professional modular steel building manufacturers and suppliers in China for over 25 years. With abundant experience, we warmly welcome you to buy prefabricated modular steel building for sale here from our factory. We also accept customized orders.