Optimized for Manufacturing & Overhead Cranes
Unlike standard warehouses, heavy industrial workshops require exceptional structural integrity to absorb extreme dynamic forces generated by heavy machinery and overhead bridge cranes.
YG Steel Structure engineers customized portal frames and lattice columns specifically designed for heavy manufacturing, automotive assembly, and metallurgical plants. We expertly integrate crane runway beams (bracket systems) tailored to your lifting requirements, ranging from 5 tons to 50+ tons.
- High Dynamic Load Capacity
- Integrated Crane Runways
- Vibration & Fatigue Resistant
- Flexible Production Layout
System Anatomy & Heavy-Duty Materials
Primary Framework
Built for intense industrial environments. Consists of reinforced Welded H-Beams, Heavy Box Columns, and Truss Structures made from premium Q355B high-tensile steel.
Crane Support System
Specially designed Crane Runway Beams and Corbels (Brackets) seamlessly welded to main columns to safely absorb braking and lifting forces.
Dynamic Connections
Secured with 10.9 Grade Large Hex Head High-Strength Bolts. Advanced bracing systems (cross & diagonal) are implemented to counter severe operational vibrations.
Ventilated Cladding
Fire-resistant Rock Wool or Glass Wool Sandwich Panels. Easily integrated with roof exhaust fans and continuous skylights for optimal factory working conditions.
Delivering Massive Industrial Parks
Our expertise extends far beyond standalone buildings. We specialize in engineering and manufacturing comprehensive, multi-bay heavy industrial parks. This aerial view showcases a recently completed mega-scale manufacturing complex entirely fabricated by YG Steel Structure.
Whether you require a dedicated heavy equipment assembly line or a sprawling 50,000㎡ industrial park, our robust 50,000-ton annual production capacity ensures that even the most massive construction volumes are managed efficiently and delivered strictly on schedule.
Workshop Reference Configuration
We provide comprehensive configuration options. Every aspect of the workshop is meticulously calculated to comply with your heavy machinery layouts and local building codes.
| Floor Plan & Span | Column spacing 6-9 meters, clear span 15-48 meters, eave height: 6-15 meters (optimized for crane clearance) |
|---|---|
| Main Steel Material | Q355B / Q235B (Optional ASTM A572 Gr.50 / S355 standard available for heavy load requirements) |
| Crane Capacity & Runway | Supports 5t, 10t, 20t, 32t, up to 50t+ heavy-duty overhead bridge cranes. Includes customized crane runway beams, corbels, and braking systems. |
| Columns and Beams | Heavy Precast Welded H-Section Steel / Built-up Lattice Columns / Box Columns |
| Connection Methods | High-strength bolt connection (10.9-grade large hex head high-strength bolt sets), reinforced rigid nodes |
| Wall & Roof System | PU-Edged Rock Wool Sandwich Panels / Pure PU Panels / Glass Wool Insulated Steel Sheets (Fireproof & Soundproof options) |
| Industrial Doors | Large Industrial Electric Roll-Up Doors / Heavy-Duty Sliding Doors / Crane-access Doors |
| Surface Corrosion Protection | Heavy-duty Epoxy zinc-rich primer + micaceous iron oxide intermediate coat + polyurethane topcoat (Designed for harsh industrial environments) |
| Roof Drainage Systems | High-capacity Siphonic drainage system / Gravity drainage system with galvanized steel gutters |
| Ventilation & Lighting | Continuous Roof FRP skylight strips / Ridge ventilators / Motorized smoke exhaust windows for fumes |
Advanced Manufacturing & Customization
Every industrial project is unique. Our Grade-A design institute leverages advanced software (Tekla Structures, PKPM) to provide complete customization based on your specific heavy machinery layouts, crane tonnage, and local wind/snow loads.
Precision Laser Cutting & Punching
We utilize industrial-grade CNC laser machines to ensure every thick steel plate and connection hole is millimeter-accurate, guaranteeing seamless on-site heavy assembly.
Hybrid Intelligent Welding
Combining the flexibility of expert manual positioning with the flawless consistency of automated submerged arc welding machines for ultimate structural integrity under dynamic loads.
Sa 2.5 Shot Blasting & Multi-Coat Paint
All steel components undergo rigorous Sa 2.5 shot blasting to remove scale, followed immediately by multi-layer anti-rust primers and durable topcoats to combat industrial fumes and severe weather.
Comprehensive 30-Step Quality Control
Zero compromises on safety. Before shipping, your workshop components must pass our strict factory inspection protocol compliant with GB 50205-2020 and AWS D1.1 structural welding standards.
| Category | No. | Inspection Item | Acceptance Criteria & Tolerance | Method / Tools |
|---|---|---|---|---|
| I. Raw Material Incoming | 1 | Material Certification | Original Material Test Certificates (MTC) required; Grade, Size, and Heat No. must match the physical material. | Document Review |
| 2 | Stamps & Markings | Steel surface must have clear manufacturer stamps or batch IDs. Tracking numbers must be legible. | Visual Check | |
| II. Thickness Acceptance | 3 | Under-Tolerance Control | Under-tolerance must be within limits. For Export: Recommended actual thickness ≥ Nominal -0.3mm. | Micrometer / UT Gauge |
| 4 | Surface Defects | No bubbles, scabs, cracks, inclusions, or pressed-in iron oxide scale allowed. | Visual Check | |
| III. Cutting & Nesting | 5 | Part Dimensions | Length & Width tolerance: ±2.0 mm. | Steel Tape |
| 6 | Cut Perpendicularity | ≤ 10% of thickness, and max ≤ 2.0 mm. | Square / Feeler Gauge | |
| 7 | Cut Surface Roughness | Machine Cut ≤ 0.2 mm; Manual Cut ≤ 0.3 mm. | Roughness Template | |
| 8 | Notches / Edge Defects | Depth ≤ 1.0 mm; deeper defects must be ground smooth or repaired. No sharp notches allowed. | Depth Gauge | |
| IV. Assembly / Fitting | 9 | Jig & Leveling | Platform flatness deviation ≤ 3.0 mm; tack welds must be sound and free of cracks. | Level / Visual |
| 10 | Section Size (H/B) | Height & Width tolerance: ±2.0 mm. | Steel Tape | |
| 11 | Web Center Offset | Web center to Flange center offset ≤ 2.0 mm. | Steel Ruler | |
| 12 | Flange Squareness | Deviation b/100 and ≤ 2.0 mm. | Square / Feeler Gauge | |
| 13 | Overall Length | Total component length tolerance: ±3.0 mm. | Steel Tape / Laser | |
| 14 | Assembly Gap | Joint gap: 1.0 ~ 3.0 mm (depending on WPS). | Feeler Gauge | |
| V. Welding Execution | 15 | Pre-weld Cleaning | No rust, oil, or moisture within 20mm of the groove/edge. | Visual Check |
| 16 | Weld Appearance | No cracks, weld bumps, burn-through, or craters; Reinforcement: 0 ~ 3 mm. | Weld Gauge | |
| 17 | Weld Leg Size | Meet design requirements; Tolerance: 0 ~ +3.0 mm. | Weld Gauge | |
| 18 | Internal Defects | No surface porosity/slag in Class I/II welds; Undercut depth ≤ 0.5 mm for Class II. | Magnifier / Visual | |
| 19 | NDT (UT/RT) | Class I: 100% UT/RT; Class II: 20% random; results must meet project specs. | NDT Report | |
| VI. Shot Blasting | 20 | Blast Grade | Must reach Sa 2.5 Grade (Near-white metal, no visible scale/rust). | Visual Comparison |
| 21 | Surface Roughness | Maintain 40 ~ 75 μm (or per paint datasheet). | Roughness Gauge | |
| 22 | Cleanliness | Surface must be blown clean; no dust, oil, or residual steel grit. | White Cloth Test | |
| VII. Coating & Painting | 23 | Dry Film Thickness | 80-20 Rule: 80% points meet spec; 20% points not less than 80% of spec. | DFT Meter |
| 24 | Coating Integrity | No damage, no missed spots, no sags, and strictly NO RUST SPOTS. | Visual (100%) | |
| 25 | Adhesion | Cross-cut test must achieve Grade 0 ~ 1. | Cross-cut Kit | |
| VIII. Final Audit & Loading | 26 | Global Geometry | Camber L/2000 ≤ 10mm; Twist h/250 ≤ 5mm. | Plumb Line / Tape |
| 27 | Pallet/Crate Quality | Pallets must be robust; load-bearing capacity must prevent deformation. | Load Inspection | |
| 28 | Container Fit | Overall package width fits container interior (usually ≤ 2.28m). | Steel Tape | |
| 29 | Categorized Stacking | Sorted stacking; use timber or rubber pads between items to prevent paint damage. | Visual Check | |
| 30 | Bracing & Lashing | Items secured to pallets, and pallets secured to container via steel straps. | Tightness Check |
Steel Bracket Packaging System
To guarantee that your heavy workshop components and delicate purlins arrive in pristine condition, we abandon traditional loose loading. Instead, we utilize a proprietary Steel Bracket Unitized Packaging System.
Massive H-beams, crane runway components, and columns are meticulously categorized, padded with protective rubber, and strapped onto heavy-duty steel skids. This not only prevents paint friction and collision damage during ocean transit but also allows for rapid, one-lift crane unloading at your construction site.
- Zero Paint Damage Guarantee
- Maximized Container Space Utilization
- Fast & Easy On-Site Unloading
Related Workshop Projects
Explore how our heavy industrial workshops are driving manufacturing efficiency and supporting major industrial operations across the globe.
