Heavy Steel Structure Factory Building
Highlights
- Heavy crane integration for 20–100 ton overhead cranes - columns and runway beams structurally engineered with bracket connections, stiffeners, and fatigue-resistant weld details built into the primary design, not retrofitted
- Multi-story production flow - composite steel-deck floors support 500–2,000 kg/m² live load per level; raw material handling at the top, processing in the middle, packaging and shipping at ground; gravity does the work
- Vibration-resistant framing - lattice girders and cross-braced bays absorb dynamic loads from stamping presses, CNC machines, and crane operations; column base anchors designed for cyclic loading, not just static weight
- Modular bay expansion with 6–12m spacing - extend the factory laterally by bolting on another bay; expansion joints at every 90m handle thermal movement in long buildings without cracking
- Dual surface protection - standard epoxy zinc-rich primer with polyurethane topcoat for 20+ years in industrial atmospheres; optional hot-dip galvanizing extends coating life to 50+ years without repainting
- Fast erection vs. concrete - 5,000 m² heavy factory frame erects in 35–45 days versus 6–8 months for reinforced concrete; the financing carry saved on faster construction often exceeds the steel premium
Product Detail
Heavy Steel Structure Factory Building: Built for Large-Scale Manufacturing
Large manufacturing operations face a structural problem that standard portal-frame warehouses cannot solve: heavy overhead cranes (20–100 tons), multi-story production lines, and vibration from stamping presses and CNC equipment demand a frame with significantly more rigidity than a typical 5-ton crane warehouse. When project managers try to adapt light steel buildings to these loads, they end up with excessive deflection, cracked welds at bracket connections, and crane runway misalignment within the first year.
Our heavy steel structure factory building is engineered around Q355B welded H-section main columns and lattice girders designed for crane capacities from 20 to 100 tons. Multi-story configurations (2–4 levels) support integrated production flows where raw material enters at the top floor and finished goods exit at ground level. Clear spans of 18–30m per bay, combined with eave heights up to 15m, accommodate tall machinery, mezzanine platforms, and bridge cranes without interior columns blocking the process flow.
A 5,000 m² heavy factory frame typically completes erection in 35–45 days, compared to 6–8 months for a reinforced concrete equivalent. That means production starts one to two quarters earlier, and the financing carry saved on construction often exceeds the steel premium itself.
Technical Specifications
Parameter | Specification |
|---|---|
Brand | Jidian Construction Materials Co., Ltd. |
Product origin | Xiamen, Fujian, China |
Building type | Heavy steel frame (multi-story capable) |
Main steel grade | Q355B welded H-section (columns, girders); Q235B secondary members |
Max clear span | 18–30m per bay (multi-bay with expansion joints) |
Eave height | 8–15m (up to 4 stories with intermediate floors) |
Crane capacity | 20–100 tons (pre-engineered runway beams and bracket connections) |
Floor loading (mezzanine) | 500–2,000 kg/m² (cast-in-place composite floor on steel deck) |
Roof live load | 0.5–0.7 kN/m² (upgradable for snow regions) |
Wind load | Up to 0.6 kN/m² (≈140 km/h) |
Seismic rating | Chinese seismic intensity Grade 8 |
Surface treatment | Sa 2.5 blast + epoxy zinc-rich primer (2×75μm) + polyurethane topcoat; hot-dip galvanizing optional (≥275 g/m² per ISO 1461) |
Cladding options | Color steel plate, rock wool/PU sandwich panel (50–150mm), ALC panel |
Bay spacing | 6–12m modular |
Manufacturing tolerance | ±2mm (CNC plasma cutting, automated SAW, AMADA robotic drilling) |
Bracing system | Cross-bracing + rigid frame action; column base anchors designed for crane dynamic loads |
Design life | 50+ years structural; 20+ years coating (galvanized: 50+ years) |
Application | Heavy machinery manufacturing, automotive assembly, steel mills, shipyards, aerospace component plants |
Manufacturing standard | GB 50017, GB 50018, ISO 15614-1, ISO 9606, ISO 1461 (if galvanized) |
Delivery time | 30–45 days after drawing confirmation |
Supply capacity | 360,000 tons/year |
Product Advantages
Heavy crane integration – Columns and crane runway beams are structurally engineered for 20–100 ton overhead cranes, not retrofitted after the fact. Bracket connections, stiffeners, and fatigue-resistant weld details are built into the primary design.
Multi-story production flow – Composite steel-deck floors support 500–2,000 kg/m² live load per level. Raw material handling at the top, processing in the middle, packaging and shipping at ground - gravity does the work, not elevators.
Vibration-resistant framing – Lattice girders and cross-braced bays absorb dynamic loads from stamping presses, CNC machines, and crane operations. Column base anchors are designed for cyclic loading, not just static weight.
Modular bay expansion – 6–12m bay spacing lets you extend the factory laterally by bolting on another bay. Expansion joints at every 90m handle thermal movement in long buildings without cracking.
Dual surface protection – Standard epoxy zinc-rich primer with polyurethane topcoat gives 20+ years in industrial atmospheres. For coastal or chemical environments, hot-dip galvanizing (≥275 g/m²) extends structural coating life to 50+ years without repainting.
Mezzanine and utility integration – Floor systems pre-engineered for cable trays, compressed air lines, and process piping. No drilling through structural members on site - connection points are designed in.
Fast erection vs. concrete – A 5,000 m² heavy factory frame erects in 35–45 days. Concrete construction for the same footprint takes 6–8 months. The financing carry saved on faster construction often exceeds the steel premium.
About Jidian Construction Materials Co., Ltd.
Jidian Construction Materials Co., Ltd. is headquartered in Xiamen, Fujian, China. We participated in the formulation and review of China's national steel structure standards and specifications. Our facility runs heavy steel, light steel, and sandwich panel production lines with an annual capacity of of 360,000 tons of steel and 1,000,000 m² of enclosure output. We hold ISO 9001, ISO 14001, ISO 45001, CE (EN 1090), SGS, and BV certifications, plus China's Steel Structure Manufacturing Special Level Qualification.ion.
Industrial building and factory projects have been delivered to 50 countries across Europe, the Middle East, Southeast Asia, Africa, and the Americas, with 2,000+ completed projects worldwide.
Manufacturing, Welding, Quality Control, Packaging, and Export Process
Steel processing and welding
CNC plasma cutting prepares all H-section plates and lattice members to dimension. Automated submerged-arc welding (SAW) joins columns, girders, and crane runway beams with consistent full-penetration welds. The cross-column production line and AMADA secondary processing line - imported from Japan and Germany - ensure ±2mm bolt-hole positioning across all connection points.
Welding qualification and NDT
Welding procedures qualified to ISO 15614-1; all welders hold ISO 9606 certifications. Every primary load-bearing weld undergoes 100% ultrasonic testing (UT) per GB/T 11345, with radiographic testing (RT) on critical butt welds. Magnetic particle inspection (MT) covers secondary connections and crane bracket details. Crane runway beam welds receive additional fatigue-category inspection per GB 50017.
Surface treatment
Surface preparation reaches Sa 2.5 (ISO 8501-1) before coating application. Standard system: epoxy zinc-rich primer (2×75μm) + polyurethane topcoat for 20+ years protection in industrial atmospheres. Hot-dip galvanizing (≥275 g/m² per ISO 1461) available for coastal and chemical environments. Coating thickness verified per batch with calibrated gauges.
Pre-shipment inspection
Mill certificates matched to steel batches. UT/MT/RT records verified. Critical dimensions - including crane runway beam straightness, column base plate flatness, and bolt-hole patterns - checked against shop drawings. Out-of-tolerance components reworked before loading.
Packaging and shipping
Heavy steel components bundled with steel strapping on timber dunnage, ends fabric-wrapped to protect coated surfaces. Hardware, bolts, and small parts in labeled iron boxes. Shipped in 40ft OT or 40ft HQ containers from Xiamen Port. Large lattice girders loaded on flat-rack containers when exceeding container dimensions.
Export documentation
Each shipment includes: mill certificates, weld/NDT records, coating/galvanizing thickness reports, packing list, and commercial invoice. FOB, CIF, and DDP terms available.
Frequently Asked Questions
What is the MOQ?
One factory building. Price per m² improves above 1,000 m².
What is the lead time?
30–45 days from drawing confirmation, depending on building size and crane specification.
How is the building shipped?
Steel bundled with strapping on timber dunnage, small parts in iron boxes. 40ft OT or HQ containers from Xiamen Port. Oversized lattice girders on flat-rack containers.
How are components packaged?
Heavy members bundled with steel strapping and fabric-wrapped ends. Hardware in labeled iron boxes matched to assembly drawings.
What are the payment terms?
T/T (30% deposit, 70% before shipment) or L/C at sight. Alibaba Trade Assurance supported.
Do you offer OEM/ODM?
Full OEM/ODM. Your brand on components, packaging, and documentation. Custom structural design to your local codes.
Do you provide installation support?
Assembly drawings, connection sequence videos, and remote support with every order. On-site engineer supervision for heavy factory projects at your expense for travel and day rate.
What do I need to provide for a quote?
Building dimensions, number of stories, crane capacity and span, floor loading requirements, local wind/snow loads, seismic zone, cladding preference, and soil type. Structural design and price within 48 hours.
Send us your building dimensions, crane requirements, floor loading, and local wind/snow loads. Structural design and quotation within 48 hours.
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FAQ
What quality certifications do your building materials hold?
Our products are manufactured under strict quality control systems and hold multiple international certifications including ISO 9001, CE, SGS, and BV. Jidian Construction Materials Co., Ltd. operates 26 production lines with advanced testing equipment, and every batch undergoes dimensional, material, and surface inspection before shipment. We also support third-party on-site inspection and pre-shipment testing by SGS, TUV, or other designated agencies. Mill Test Certificates (MTC) and quality reports are provided with every delivery.
Can I request product samples before placing a bulk order?
Yes, we provide product samples for evaluation. Small material samples such as steel coupons, panel cuttings, and fastener samples are provided free of charge, with the customer only paying for shipping. For larger samples or custom prototypes, a sample fee may apply, which is deductible from your bulk order. Please contact Jidian Construction Materials Co., Ltd. with your specific sample requirements and we will arrange shipment from our Xiamen facility promptly.
Can you print our company logo on the building materials or packaging?
Yes, we offer custom logo printing and branding services. Your company logo can be applied to product surfaces (such as panel edges, steel beam ends), packaging materials, and shipping marks. We use laser engraving, stenciling, or adhesive labeling depending on the material and your preference. This service is available for OEM orders with a reasonable MOQ. Provide us with your logo artwork (AI or vector format preferred) and we will incorporate it into the production process.
Do you provide OEM and custom manufacturing services?
Yes, Jidian Construction Materials Co., Ltd. offers comprehensive OEM and ODM services. With an annual steel processing capacity of 360,000 tons and 1,000,000 m² enclosure material output, we can manufacture products to your exact specifications, drawings, or samples. Our engineering team in Xiamen works closely with clients to optimize designs for cost-efficiency and structural performance. We have completed over 2,000 projects across 50 countries, delivering custom steel structures, panels, and building systems tailored to diverse market requirements.
What is the minimum order quantity (MOQ) for your building materials?
The MOQ varies by product type. For standard steel profiles and panels, the MOQ is typically 5 tons. For prefabricated steel structures, the MOQ is one complete set (e.g., one warehouse or workshop building). For customized OEM products, the MOQ depends on the complexity of the design. Jidian Construction Materials Co., Ltd. is flexible and can discuss specific MOQ requirements based on your project needs. Contact us for a detailed quotation.
How do you handle shipping and logistics for international orders?
Jidian Construction Materials Co., Ltd. exports to over 50 countries worldwide from our facility in Xiamen, Fujian, China. We offer both sea freight and land transportation options. For sea freight, we ship from Xiamen Port to major ports globally. For land transport, we deliver to neighboring countries via truck. We handle all export documentation, customs clearance, and can arrange door-to-door delivery through our trusted logistics partners. FOB, CIF, and DDP terms are all available.
How are your building materials packaged for transport?
We use professional packaging tailored to each product type. Steel profiles and beams are bundled with steel straps and protected with waterproof wrapping. Wall and roof panels are stacked on pallets with edge protectors and shrink-wrapped. Fasteners and accessories are packed in wooden cases. All packaging is designed to withstand long-distance sea transport and handling. Custom packaging requirements can be accommodated upon request to ensure safe delivery to your site.
What payment methods do you accept?
We accept T/T (Telegraphic Transfer) and L/C (Letter of Credit). For standard orders, the payment term is 30% advance deposit and 70% balance before shipment. For large project orders, we can negotiate flexible payment terms. All payments are processed through verified international banking channels. Jidian Construction Materials Co., Ltd. has established banking relationships that ensure secure and efficient transactions for our global clients.